Fullerton, California Weather
Summer solstice light stretched thin. Day 88 of spring. Read this microseason across nine climate regions →
Fullerton weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Mostly Clear——88°61°—
- TuesdayJun 16Overcast——85°60°-3°
- WednesdayJun 17Clear——84°66°-1°
- ThursdayJun 18Clear——81°66°-3°
- FridayJun 19Mostly Clear——80°64°-1°
- SaturdayJun 20Clear——76°63°-4°
- SundayJun 21Clear——77°62°+1°
AQI 61 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 17.8 µg/m³ (AQI 67) with a 0.89 fine-to-coarse ratio and 2 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 17.8 µg/m³ (AQI 67) with a 0.89 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.89
- 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:53 AM
- Moonset
- 8:19 PM
- In sign
- ♋︎ Cancer
Summer solstice light stretched thin
Fullerton at a glance
- Today vs. normal: 19°F below the seasonal normal for this latitude
- Last frost: March 10 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
Live wind & temperature near Fullerton
Right now in the garden
Peak growing season
As of June 15, 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 Fullerton
- 92835
- 92833
- 92832
- 92831
- 92834
- 92836
- 92837
- 92838