San Gabriel, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
San Gabriel weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——87°62°—
- MondayJul 6Mostly Clear——87°60°0°
- TuesdayJul 7Clear——88°62°+1°
- WednesdayJul 8Clear——89°70°+1°
- ThursdayJul 9Clear——95°72°+6°
- FridayJul 10Overcast——89°72°-6°
- SaturdayJul 11Overcast——86°72°-3°
AQI 61 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 18.9 µg/m³ (AQI 69) with a 0.82 fine-to-coarse ratio and 3 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 18.9 µg/m³ (AQI 69) with a 0.82 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.82
- 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
- 11:08 PM
- Moonset
- 11:11 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
San Gabriel at a glance
- Today vs. normal: 3°F above the seasonal normal for this latitude
- Last frost: March 12 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP codes: 91775, 91776
16-Day Forecast — San Gabriel
- Sun87°62°1%
- Mon87°60°0%
- Tue88°62°0%
- Wed89°70°0%
- Thu95°72°0%
- Fri89°72°0%
- Sat86°72°0%
- Sun88°71°1%
- Mon94°73°6%
- Tue100°76°9%
- Wed97°78°3%
- Thu97°80°10%
- Fri100°81°10%
- Sat98°78°10%
- Sun99°76°19%
- Mon99°77°19%
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 San Gabriel
- 91775
- 91776
- 91778