Potrero, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Potrero weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Clear——88°61°—
- MondayJul 6Clear——89°61°+1°
- TuesdayJul 7Clear——93°61°+4°
- WednesdayJul 8Clear——98°66°+5°
- ThursdayJul 9Clear——98°69°0°
- FridayJul 10Overcast——97°68°-1°
- SaturdayJul 11Overcast——88°65°-9°
AQI 46 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 10.2 µg/m³, PM10 at 14.5 µg/m³ — typical background levels with no transport signature.
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 41 now. With UV 12 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 66 around 1 PM.
- Present
- AQI 41
- UV peak
- 12.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 66
PM × Wind × Precip
PM2.5 at 10.2 µg/m³, PM10 at 14.5 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.70
- Wind
- breezy
- Recent rain
- 0h in last 6h
- Pattern
- background
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
- 11:01 PM
- Moonset
- 11:05 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Potrero at a glance
- Today vs. normal: 5°F above the seasonal normal for this latitude
- Last frost: March 3 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 91963
16-Day Forecast — Potrero
- Sun88°61°0%
- Mon89°61°0%
- Tue93°61°0%
- Wed98°66°1%
- Thu98°69°0%
- Fri97°68°1%
- Sat88°65°1%
- Sun89°66°5%
- Mon99°67°20%
- Tue98°73°23%
- Wed98°73°15%
- Thu101°72°24%
- Fri103°72°20%
- Sat100°73°17%
- Sun99°74°6%
- Mon103°72°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 Potrero
- 91963