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San Fernando, CA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for San Fernando, a city in Los Angeles County, California.

Today
96°F
Sunny
Sunny, with a high near 96. South wind 0 to 10 mph.

7-day forecast for San Fernando

WhenTempForecastWindPrecip
Today 96°F Sunny 0 to 10 mph S 0%
Tonight 65°F Mostly Clear 0 to 5 mph SSE 0%
Wednesday 95°F Sunny 0 to 5 mph S 0%
Wednesday Night 66°F Mostly Clear 0 to 5 mph SSE 0%
Thursday 95°F Sunny 0 to 5 mph S 0%
Thursday Night 67°F Mostly Clear 0 to 5 mph SSE 0%
Friday 97°F Sunny 0 to 5 mph S 0%
Friday Night 68°F Mostly Clear 0 to 5 mph S 0%
Saturday 98°F Sunny 0 to 5 mph S 0%
Saturday Night 68°F Mostly Clear 0 to 5 mph SSE 0%
Sunday 97°F Sunny 0 to 10 mph SSE 0%
Sunday Night 67°F Mostly Clear 0 to 10 mph S 0%
Monday 93°F Sunny 0 to 10 mph S 1%
Monday Night 65°F Mostly Clear 0 to 10 mph SSE 1%

Forecast source: National Weather Service (api.weather.gov) for San Fernando (34.289, -118.436). Updated through the day.

Growing snapshot for San Fernando

Last spring frost
Jan 2
First fall frost
Jan 1
Growing season
365 days
Hardiness zone
10a

More local growing data for San Fernando: nearby ZIP 91340 weather · frost dates · planting calendar · California frost dates

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Climate data from the nearest NOAA station, Northridge Cal State, Ca (5.9 mi from San Fernando). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.