San Pablo, CA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for San Pablo, a city in Contra Costa County, California.

This Afternoon

75°F

Sunny

Sunny. High near 75, with temperatures falling to around 73 in the afternoon. South southwest wind around 9 mph.

7-day forecast for San Pablo

When	Temp	Forecast	Wind	Precip
This Afternoon	75°F	Sunny	9 mph SSW	0%
Tonight	57°F	Partly Cloudy	6 to 9 mph SSW	0%
Saturday	76°F	Mostly Sunny	7 to 10 mph S	0%
Saturday Night	57°F	Mostly Cloudy	8 mph SSW	0%
Sunday	68°F	Partly Sunny	7 to 10 mph SSW	1%
Sunday Night	57°F	Mostly Cloudy	9 mph SW	2%
Monday	69°F	Mostly Sunny	8 to 13 mph SW	0%
Monday Night	57°F	Partly Cloudy	8 to 13 mph SW	0%
Tuesday	72°F	Mostly Sunny	7 to 10 mph SW	0%
Tuesday Night	58°F	Mostly Clear	5 to 10 mph SSW	0%
Wednesday	83°F	Mostly Sunny	3 to 7 mph SW	0%
Wednesday Night	59°F	Mostly Clear	3 to 7 mph SW	0%
Thursday	83°F	Sunny	3 to 8 mph SW	0%
Thursday Night	60°F	Partly Cloudy	8 mph SSW	0%

Forecast source: National Weather Service (api.weather.gov) for San Pablo (37.963, -122.343). Updated through the day.

Growing snapshot for San Pablo

Last spring frost

Jan 4

First fall frost

Jan 2

Growing season

365 days

Hardiness zone

10a

More local growing data for San Pablo: nearby ZIP 94806 weather · frost dates · planting calendar · California frost dates

Nearby towns & communities

Acalanes Ridge Alamo Alhambra Valley Antioch Bay Point Bayview Benicia Bethel Island Blackhawk Brentwood Byron Castle Hill Clayton Clyde Concord Contra Costa Centre Crockett Danville Diablo Discovery Bay East Richmond Heights El Cerrito El Sobrante Hercules Knightsen Lafayette Martinez Montalvin Manor Moraga Mountain View

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Climate data from the nearest NOAA station, Richmond, Ca (4.7 mi from San Pablo). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.