Colfax, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Colfax weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——86°65°—
- MondayJul 6Overcast——87°64°+1°
- TuesdayJul 7Partly Cloudy——88°59°+1°
- WednesdayJul 8Clear——92°60°+4°
- ThursdayJul 9Clear——94°62°+2°
- FridayJul 10Partly Cloudy——96°65°+2°
- SaturdayJul 11Overcast——99°66°+3°
AQI 28 (Good), driven by Ozone. AQI down 8 over the last 6 hours (gradual decline). Ozone at AQI 60 now. With UV 6.6 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 37 around 1 PM.
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 60 now. With UV 6.6 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 37 around 1 PM.
- Present
- AQI 60
- UV peak
- 6.6 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 37
PM × Wind × Precip
PM2.5 at 6.3 µg/m³ (AQI 35) with a 0.61 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.61
- 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
- 11:23 PM
- Moonset
- 11:22 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Colfax at a glance
- Today vs. normal: 9°F above the seasonal normal for this latitude
- Last frost: April 11 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 95713
16-Day Forecast — Colfax
- Sun86°65°3%
- Mon87°64°1%
- Tue88°59°0%
- Wed92°60°0%
- Thu94°62°0%
- Fri96°65°0%
- Sat99°66°0%
- Sun98°68°1%
- Mon106°74°3%
- Tue105°75°5%
- Wed96°69°3%
- Thu92°65°2%
- Fri101°68°10%
- Sat107°73°10%
- Sun106°76°11%
- Mon99°71°6%
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 Colfax
- 95713