Santa Clara, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Santa Clara weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——73°57°—
- MondayJul 6Overcast——71°55°-2°
- TuesdayJul 7Overcast——83°55°+12°
- WednesdayJul 8Clear——89°56°+6°
- ThursdayJul 9Clear——89°61°0°
- FridayJul 10Partly Cloudy——93°60°+4°
- SaturdayJul 11Overcast——95°64°+2°
AQI 32 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 8.2 µg/m³ (AQI 46) with a 0.68 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 8.2 µg/m³ (AQI 46) with a 0.68 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.68
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:26 PM
- Moonset
- 11:26 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Santa Clara at a glance
- Today vs. normal: 7°F below the seasonal normal for this latitude
- Last frost: March 31 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP codes: 95050, 95051, 95053, 95054
16-Day Forecast — Santa Clara
- Sun73°57°0%
- Mon71°55°0%
- Tue83°55°0%
- Wed89°56°0%
- Thu89°61°0%
- Fri93°60°0%
- Sat95°64°1%
- Sun97°67°1%
- Mon101°75°3%
- Tue106°74°3%
- Wed90°68°1%
- Thu97°72°3%
- Fri104°76°0%
- Sat106°78°0%
- Sun107°78°3%
- Mon96°69°3%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Santa Clara
Right now in the garden
Peak growing season
As of July 5, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
ZIP codes in Santa Clara
- 95054
- 95050
- 95051
- 95053
- 95052
- 95055
- 95056