Evergreen Weather
Town • San Francisco Bay Area
Evergreen spreads across the southeast corner of San Jose, east of US 101. Here the valley floor tilts up into the first grassy foothills of the Diablo Range below Mount Hamilton. Evergreen Valley College sits in those foothills on Yerba Buena Road. Lake Cunningham Park, with its 50-acre lake and action sports park, lies just to the northwest on South White Road. Unlike the West Valley towns, Evergreen faces west from the base of the east-side hills, across the valley toward the Santa Cruz Mountains.
Plan your week
10-Day Forecast
Hour by hour
Hourly Forecast
Current Conditions
Comfort Breakdown
Evergreen weather today and through the year
It's 56°F at Evergreen right now (feels like 50°F), with 10 mph wind and a comfort score of 76. Monday's forecast high at Evergreen is 55°F, 11°F below the mid November normal of 66°F. The best window today is 11 AM to 2 PM, at about 53°F with a 6 mph wind (comfort 61).
July is the warmest month at Evergreen, with an average high of 86°F. December is the coldest, with an average low of 38°F. January is the wettest month (3.2 in.), out of about 16.7 in. a year. By typical temperature, wind, cloud, humidity, and rain odds, the most comfortable months at Evergreen are June, September, and July. The best hours are usually 9 AM to noon in June, 10 AM to 1 PM in September, and 9 AM to noon in July.
Evergreen is about as far from the summer sea breeze as San Jose gets. The northwest wind that runs down the bay in the afternoon has crossed the whole city by the time it reaches these foothills. The slopes also face west into the afternoon sun. That combination makes Evergreen one of San Jose's warmer neighborhoods on summer afternoons, slightly warmer than downtown.
Forecast updated November 15, 2026 at 4:00 AM PST. Climate figures come from NOAA 1991-2020 normals. Hourly patterns come from NOAA's HRRR hourly analysis from September 2014 to April 2026.
What to expect at Evergreen in the next few days
No active National Weather Service alerts for this location.
Best time to go
The best window today is 11 AM to 2 PM, at about 53°F with a 6 mph wind (comfort 61).
Best day this week
Of the next 7 days, Friday looks best for Evergreen, with a 60°F high and midday comfort near 74. Wednesday looks weakest (49).
Rain
Next good chance of rain: today (83%, about 0.26 in.).
Live weather map
Weather around Evergreen right now
Overcast and 56° at Evergreen right now.
About the live weather map for Evergreen
The map centers on Evergreen and stacks fog, satellite clouds, and precipitation radar on one view. Clouds come from the GOES-West satellite and rain from NOAA radar, and both show current conditions. Fog comes from our HRRR-based fog model, and the slider steps through its forecast for the next 12 hours.
Dots mark nearby places with their current temperature, colored by comfort score. Use the layer buttons to turn any layer off, or open the full map for every destination in the region.
Nearby Temperature Comparison
Conditions at nearby San Francisco Bay Area destinations
Tip: Bay Area temperatures can change by 20 to 30°F over a short distance because of microclimates.
Evergreen vs nearby places
Typical summer conditions compared with Evergreen, from the same NOAA HRRR hourly record. The list shows the closest places, then nearby places whose climate differs the most.
| Place | Distance | Summer afternoons | Morning fog | Afternoon wind | Compared with Evergreen |
|---|---|---|---|---|---|
| Willow Glen | 6.6 mi | same | 9% | 10 mph | a very similar climate |
| Downtown San Jose | 6.7 mi | -1°F | 8% | 10 mph | a very similar climate |
| Lick Observatory (Mt. Hamilton) | 7.3 mi | -7°F | 2% | 10 mph | 3,870 ft higher and about 68% more rain a year |
| Don Edwards Wildlife Refuge | 21.1 mi | -20°F | 18% | 16 mph | about 20°F cooler on summer afternoons and windier summer afternoons (16 vs 9 mph) |
| Scotts Valley | 22.4 mi | -7°F | 46% | 7 mph | about twice as much rain a year and more summer morning fog (46% vs 9% of morning hours) |
| Coyote Hills Regional Park | 24.3 mi | -20°F | 21% | 14 mph | about 20°F cooler on summer afternoons and windier summer afternoons (14 vs 9 mph) |
Places with a climate like Evergreen's
- Pleasant Hill (47 mi away): nearly the same temperatures every month
- Walnut Creek (45 mi away): nearly the same temperatures every month
- Saratoga (14 mi away): nearly the same temperatures every month
Climate Dashboard
Current conditions vs. NOAA normals and recent destination baseline
What the Evergreen climate comparisons mean
These cards compare recent conditions at Evergreen with the available local baseline. Temperature and year-to-date rainfall use long-term normals when available. Fog, sunshine, wind, and comfort use the matching recent or modeled baseline identified on each card.
Positive and negative differences describe how Evergreen departs from its own usual pattern. They should not be read as a direct comparison with another city or as a forecast beyond the period shown.
Evergreen weather by month
July is the warmest month at Evergreen, with an average high of 86°F. December is the coldest, with an average low of 38°F. January is the wettest month (3.2 in.), out of about 16.7 in. a year. July has the clearest middays, with clouds covering about 4% of the sky from 11 AM to 3 PM.
By typical temperature, wind, cloud, humidity, and rain odds, the most comfortable months at Evergreen are June, September, and July. The best hours are usually 9 AM to noon in June, 10 AM to 1 PM in September, and 9 AM to noon in July.
| Month | Avg high | Avg low | Rain | Rainy days | Morning fog | Midday cloud | Afternoon wind | Daylight | Comfort |
|---|---|---|---|---|---|---|---|---|---|
| Jan | 59°F | 39°F | 3.2 in | 7 | 9% | 31% | 6 mph | 9.9 h | 61 |
| Feb | 62°F | 41°F | 3.1 in | 7 | 6% | 25% | 8 mph | 10.8 h | 63 |
| Mar | 67°F | 43°F | 2.9 in | 7 | 5% | 30% | 8 mph | 11.9 h | 67 |
| Apr | 71°F | 45°F | 1.3 in | 5 | 5% | 22% | 9 mph | 13.1 h | 79 |
| May | 76°F | 49°F | 0.5 in | 3 | 5% | 16% | 10 mph | 14.2 h | 82 |
| Jun | 83°F | 53°F | 0.1 in | 2 | 6% | 6% | 10 mph | 14.7 h | 89 |
| Jul | 86°F | 56°F | 0.0 in | 0 | 11% | 4% | 9 mph | 14.5 h | 86 |
| Aug | 86°F | 56°F | 0.0 in | 1 | 9% | 5% | 9 mph | 13.5 h | 86 |
| Sep | 84°F | 54°F | 0.1 in | 1 | 7% | 9% | 9 mph | 12.3 h | 89 |
| Oct | 77°F | 48°F | 0.8 in | 4 | 7% | 13% | 8 mph | 11.1 h | 86 |
| Nov | 66°F | 42°F | 1.7 in | 5 | 7% | 21% | 6 mph | 10.1 h | 78 |
| Dec | 58°F | 38°F | 3.0 in | 7 | 11% | 34% | 6 mph | 9.6 h | 58 |
Morning fog is the share of hours from 6 to 10 AM with fog or low cloud. Midday cloud is the average from 11 AM to 3 PM, and afternoon wind is the average from 1 to 5 PM. The highlighted rows are the most comfortable months.
What makes Evergreen's weather different
When the wind picks up
1 PMwhen afternoon wind builds, February–October
From February through October, wind at Evergreen typically builds after 1 PM. In June it peaks around 5 PM, averaging 11 mph with 10% of those hours windy, while mornings average 4 mph.
Elevation
−7°Fsummer afternoons at Lick Observatory (Mt. Hamilton), 3,870 ft up
Lick Observatory (Mt. Hamilton) sits 3,870 ft higher, 7.3 miles away. Its summer highs average 7°F cooler and its winter lows 2°F colder than Evergreen.
Daylight
9.6–14.7 hof daylight, Dec to Jun
Days at Evergreen range from about 9.6 hours in December to 14.7 hours in June. In mid-June the sun sets around 8:28 PM, and in mid-December around 4:55 PM.
Seasons at Evergreen
- Warm seasonJun 25 – Sep 25 · highs 83°F+
The warm season lasts about 3.1 months, from Jun 25 to Sep 25, when the average high is 83°F or warmer. Highs peak around Jul 8 at about 86°F.
- Hot afternoonsJul 4 – Sep 1 · highs 85°F+
Average highs reach 85°F or more from Jul 4 to Sep 1.
- Cool seasonNov 28 – Feb 26 · highs 64°F or lower
The cool season runs from Nov 28 to Feb 26, when the average high is 64°F or lower. The coldest nights come around Dec 8, with an average low near 38°F.
- Rainy seasonNov 28 – Mar 29 · 73% of the year's rain
The rainy season runs from Nov 28 to Mar 29, when a day has at least a 20% chance of measurable rain. That stretch brings 73% of the year's rain.
The dark line marks today. Season dates come from the smoothed daily NOAA 1991-2020 normals. Counting from Oct. 1, a typical year has its first inch of rain by Nov 5 and half of its annual total by Jan 29.
Days per year and extremes (Nov 1, 2024 to Oct 31, 2026)
This record runs from Nov 1, 2024 to Oct 31, 2026. Over this record, Evergreen averaged 26 days a year at 90°F or hotter and no freezing nights. It averaged 9 days a year with at least half an inch of rain and 1 afternoon with wind of 20 mph or more at 2 PM. About 51 mornings a year had 3 or more hours of fog or low cloud.
In the same record, the hottest day was Jun 11, 2026 (100°F) and the coldest night was Feb 10, 2025 (35°F). The wettest day was Feb 5, 2025 (1.25 in.), and the strongest 2 PM gust was 40 mph on Feb 4, 2025.
- 26days at 90°F or hotter
- 0nights at or below freezing
- 9days with ½ in. of rain or more
- 1afternoon with 20+ mph wind
- 51mornings with 3+ hours of fog or low cloud
- Hottest day100°FJun 11, 2026
- Coldest night35°FFeb 10, 2025
- Wettest day1.25 inFeb 5, 2025
- Strongest 2 PM gust40 mphFeb 4, 2025
What shapes Evergreen's weather
Evergreen's foothill slope shapes its nights too. Cold air drains off the Diablo Range foothills and pools on the flat ground near US 101 and Capitol Expressway. On clear winter nights, homes higher on the hill stay milder while the valley floor below collects the coldest air and wood smoke.
The Santa Cruz Mountains on the far side of the valley take much of the rain from winter storms. The hills behind Evergreen lift what remains, so the upper neighborhoods get a little more than the flats. By late spring the foothill grass has dried to brown. In fall, dry offshore winds, which blow from inland toward the coast, raise the fire danger where neighborhoods meet open hills.
Tips for visiting Evergreen
Walk the loop around Lake Cunningham
A walking path circles the 50-acre lake, with a par course of exercise stations along the way. Parking in the park is paid.
Fuel up before Mount Hamilton
Mount Hamilton Road to Lick Observatory has no gas or auto services between San Jose and the summit, and it is narrow with many sharp curves.
Go early on summer days
Summer afternoons are hot on these west-facing slopes. Plan walks and sports for the morning, before the afternoon sun reaches them.
Watch for Spare the Air alerts
Winter Spare the Air alerts make it illegal to burn wood. On calm winter nights, smoke settles on the flats below the hills.
Evergreen through the seasons
- Spring (March–May)
- The foothills behind Evergreen turn green, and the days are mild and often breezy in the afternoon.
- Summer (June–August)
- Summer afternoons are hot and sunny, and a northwest breeze picks up after midday. Mornings are the time for the lake path and the skate park.
- Fall (September–November)
- September stays nearly as hot as summer, and dry fall winds bring the year's highest fire danger to the grassy hills.
- Winter (December–February)
- The rainy season greens the hills again. On still nights, cold air and wood smoke settle on the low ground.
Activities and the weather that matters
- Lake Cunningham walks: The lakeside path and par course are best on cool mornings and mild evenings.
- Skating and biking at the action sports park: Open pavement heats up fast on summer afternoons. Dry spring and fall days are the best for riding.
- Driving or cycling up Mount Hamilton: Clear days after rain give the best views. Watch for mudslides, rocks, and debris after storms, and snow can close the road in winter.
Official sources and current conditions
- Visit San Jose: Lake Cunningham Park
- Lick Observatory: visitor information
- Bay Area Air District: Spare the Air alerts
- National Weather Service, San Francisco Bay Area forecast office
Numbers on this page come from NOAA data. The text draws on the official sources linked above.
Historical Climate Data
Long-term weather patterns and climate data
Data sources: Recent temperatures come from NOAA URMA and recent precipitation from NOAA Stage IV. Fog, cloud, wind, humidity, and sunshine come from NOAA HRRR, and long-term baselines from NOAA 1991-2020 climate normals.
Climate Overview
Based on NOAA 30-year temperature/rain normals (1991-2020) with recent fog/sun baseline
🌟 Best Months to Visit
⚠️ Challenging Months
Monthly Breakdown
| Month | Comfort | High/Low | ☀️ Sun | 🌫️ Fog | 💧 Rain | Perfect |
|---|---|---|---|---|---|---|
| November 2024 | 86 | 65.1° / 47.3° | 6.7h | 0d | 1.45" | 24 |
| December 2024 | 78 | 63.2° / 46.9° | 5.2h | 4d | 2.61" | 16 |
| January 2025 | 86 | 61.8° / 41.9° | 7h | 1d | 0.1" | 27 |
| February 2025 | 79 | 63.3° / 46° | 6.1h | 3d | 3.84" | 16 |
| March 2025 | 84 | 63.8° / 46.7° | 7.4h | 2d | 2.17" | 22 |
| April 2025 | 93 | 70.2° / 48.7° | 9.5h | 0d | 0.62" | 27 |
| May 2025 | 94 | 77.1° / 51.3° | 11.9h | 2d | 0.07" | 30 |
| June 2025 | 96 | 80.3° / 53.6° | 12.4h | 4d | 0" | 30 |
| July 2025 | 94 | 82.3° / 56.4° | 11.8h | 4d | 0" | 31 |
| August 2025 | 91 | 85.3° / 58.4° | 10.8h | 5d | 0" | 30 |
| September 2025 | 92 | 82.7° / 61.9° | 9.6h | 0d | 0.08" | 29 |
| October 2025 | 90 | 74.4° / 54.5° | 7.8h | 3d | 1.46" | 26 |
| November 2025 | 78 | 66.6° / 50° | 5.4h | 6d | 2.97" | 16 |
| December 2025 | 73 | 60.3° / 45.8° | 4.3h | 10d | 1.66" | 12 |
| January 2026 | 85 | 63.8° / 45.5° | 6.8h | 1d | 2.29" | 24 |
| February 2026 | 82 | 66.1° / 48.6° | 6.7h | 3d | 3.58" | 20 |
| March 2026 | 95 | 78.3° / 52.3° | 9.7h | 0d | 0" | 30 |
| April 2026 | 91 | 71.6° / 50.8° | 9.2h | 0d | 2.04" | 26 |
| May 2026 | 94 | 76.1° / 53.4° | 11.5h | 3d | 0.22" | 31 |
| June 2026 | 93 | 82.6° / 56.2° | 12.3h | 2d | 0" | 29 |
| July 2026 | 91 | 84.1° / 58.3° | 11.7h | 3d | 0" | 30 |
| August 2026 | 92 | 85.3° / 58.5° | 10.8h | 5d | 0" | 30 |
| September 2026 | 92 | 81.8° / 57.7° | 10.1h | 2d | 0.04" | 28 |
| October 2026 | 91 | 79.2° / 55.7° | 8.2h | 0d | 0.19" | 29 |
Climate Trends
Average Temperature by Month
About the Evergreen climate charts
The temperature chart compares average monthly highs and lows at Evergreen, showing both the seasonal cycle and the typical day-to-night range. The comfort chart summarizes how often the combined weather pattern is favorable rather than judging temperature alone.
Precipitation shows the total recorded or modeled rainfall for each month at Evergreen. Sunshine compares average bright-sky hours with the daylight available, while fog shows the average number of morning fog or low-cloud hours per day. Switch between the chart tabs to compare the same months across each measure.
Hourly Temperature, Fog, Wind, Cloud Cover, and Solar Radiation Patterns
Average local hour by month from 2014-09-30 to 2026-04-30
- Temperature: At Evergreen, the warmest typical hour is 3 PM in August (85°F). The coldest is 7 AM in December (47°F).
- Wind: From February through October, wind at Evergreen typically builds after 1 PM. In June it peaks around 5 PM, averaging 11 mph with 10% of those hours windy, while mornings average 4 mph.
- Cloud Cover: July middays are the clearest at Evergreen (4% average cloud cover), and December middays are the cloudiest (34%).
- Solar Radiation: The strongest typical sun at Evergreen comes at 1 PM in July, averaging 998 W/m².
How to read the hourly heatmaps for Evergreen
This heatmap shows how average temperature at Evergreen changes by hour and month. Read left to right for the seasons and top to bottom for the time of day. Warmer colors mark the usual afternoon peaks, and cooler colors show overnight and winter lows.
This heatmap shows when fog or low cloud is most likely at Evergreen. Darker cells mark the months and hours when fog has been most common. They help separate overnight or morning fog from cloud that tends to linger into the afternoon.
This heatmap shows the typical hourly wind pattern at Evergreen through the year. It makes recurring afternoon wind, calmer overnight periods, and seasonal changes easier to compare than a single daily wind value.
This heatmap shows average cloud cover at Evergreen for every month and hour. Use it to see whether cloudiness is mainly an overnight and morning pattern or commonly persists during the part of the day you plan to visit.
This heatmap shows the average solar radiation reaching Evergreen by month and hour. Brighter cells indicate the strongest typical sun, while muted cells can reflect nighttime, shorter winter days, cloud cover, smoke, or terrain shading.
Each cell combines one month with one local hour. Hover over or focus on a cell for its value and sample coverage. The red marker shows the current month and hour.
How recent months compared at Evergreen
- October 2026 recap: October 2026 at Evergreen averaged a high of 79°F, 2°F warmer than the 1991-2020 normal of 77°F. It brought 0.19 in. of rain, compared with a normal of 0.77 in.
- Rain year: The 2025-26 rain year (Oct. 1 to Sep. 30) brought 14.3 in. of rain to Evergreen, 85% of the 16.7 in. normal.
Location Details
Evergreen weather questions
Everything you need to know about weather and visiting Evergreen
What is the weather like at Evergreen today?
It's 56°F at Evergreen right now, with a comfort score of 76 (great). Monday's forecast high at Evergreen is 55°F, 11°F below the mid November normal of 66°F. The best window today is 11 AM to 2 PM, at about 53°F with a 6 mph wind (comfort 61).
What is the best month to visit Evergreen?
By typical temperature, wind, cloud, humidity, and rain odds, the most comfortable months at Evergreen are June, September, and July. The best hours are usually 9 AM to noon in June, 10 AM to 1 PM in September, and 9 AM to noon in July. The warm season lasts about 3.1 months, from Jun 25 to Sep 25, when the average high is 83°F or warmer. Highs peak around Jul 8 at about 86°F.
What are the warmest and coldest months at Evergreen?
July is the warmest month at Evergreen, with an average high of 86°F. December is the coldest, with an average low of 38°F.
When is it windiest at Evergreen?
From February through October, wind at Evergreen typically builds after 1 PM. In June it peaks around 5 PM, averaging 11 mph with 10% of those hours windy, while mornings average 4 mph.
How much rain does Evergreen get?
January is the wettest month (3.2 in.), out of about 16.7 in. a year. The rainy season runs from Nov 28 to Mar 29, when a day has at least a 20% chance of measurable rain. That stretch brings 73% of the year's rain. The 2025-26 rain year (Oct. 1 to Sep. 30) brought 14.3 in. of rain to Evergreen, 85% of the 16.7 in. normal.
How does Evergreen weather compare with Lick Observatory (Mt. Hamilton)?
Lick Observatory (Mt. Hamilton) sits 3,870 ft higher, 7.3 miles away. Its summer highs average 7°F cooler and its winter lows 2°F colder than Evergreen.
What kind of place is Evergreen?
Evergreen spreads across the southeast corner of San Jose, east of US 101. Here the valley floor tilts up into the first grassy foothills of the Diablo Range below Mount Hamilton. Evergreen Valley College sits in those foothills on Yerba Buena Road. Lake Cunningham Park, with its 50-acre lake and action sports park, lies just to the northwest on South White Road. Unlike the West Valley towns, Evergreen faces west from the base of the east-side hills, across the valley toward the Santa Cruz Mountains.
What is Evergreen weather like in November?
November at Evergreen averages a high of 66°F and a low of 42°F, with 1.7 in. of rain over about 5 rainy days. Afternoon wind averages 6 mph.
More about Evergreen weather
Guides that explain the weather here and nearby
Data sources and methods
- Monthly temperatures and precipitation: NOAA 1991-2020 normals.
- Fog, cloud, wind, sun, and comfort by hour and month: NOAA's HRRR hourly analysis from September 2014 to April 2026.
- Daily records and recent months: NOAA URMA and HRRR analyses, plus NOAA Stage IV precipitation.
- Nearby comparisons and regional rankings use the same hourly HRRR summaries for every destination in the region.
- Alerts: National Weather Service. Tides and ocean temperature: NOAA CO-OPS, where shown.
- All statements on this page are computed from these datasets, apart from the “What shapes the weather” guide, which cites its sources inline.
- Visit San Jose, Lake Cunningham Park (accessed 2026-10-27)
- Lick Observatory, visitor information (accessed 2026-10-27)
- Bay Area Air District, Spare the Air (accessed 2026-10-27)
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