Durham, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Durham weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——92°66°—
- MondayJul 6Clear——92°62°0°
- TuesdayJul 7Partly Cloudy——99°56°+7°
- WednesdayJul 8Clear——103°57°+4°
- ThursdayJul 9Clear——105°62°+2°
- FridayJul 10Partly Cloudy——107°62°+2°
- SaturdayJul 11Overcast——110°67°+3°
AQI 27 (Good), driven by PM2.5. AQI down 11 over the last 6 hours (gradual decline). PM2.5 at 7.4 µg/m³ (AQI 41) with a 0.73 fine-to-coarse ratio and 6 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
Ozone × UV × Sky
Ozone at AQI 34. Overcast through the UV peak window (cloud cover ~95%) — afternoon ozone should stay flat.
- Present
- AQI 34
- UV peak
- 5.6 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 13
PM × Wind × Precip
PM2.5 at 7.4 µg/m³ (AQI 41) with a 0.73 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.73
- Wind
- light
- 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
- 11:27 PM
- Moonset
- 11:25 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Durham at a glance
- Today vs. normal: 72°F — typical for the season
- Last frost: April 14 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 95938
16-Day Forecast — Durham
- Sun92°66°0%
- Mon92°62°1%
- Tue99°56°0%
- Wed103°57°0%
- Thu105°62°0%
- Fri107°62°0%
- Sat110°67°1%
- Sun111°68°1%
- Mon114°75°1%
- Tue117°77°2%
- Wed104°77°2%
- Thu99°78°2%
- Fri110°73°3%
- Sat115°74°3%
- Sun118°77°3%
- Mon109°68°3%
Forecast data from Open-Meteo (CC BY 4.0).
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 Durham
- 95965
- 95958
- 95928
- 95938