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Whitmore, CA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Whitmore, a community in Shasta County, California.

Today
102°F
Sunny
Sunny. High near 102, with temperatures falling to around 100 in the afternoon. West southwest wind around 5 mph.

7-day forecast for Whitmore

WhenTempForecastWindPrecip
Today 102°F Sunny 5 mph WSW 0%
Tonight 68°F Mostly Clear 3 mph ESE 0%
Wednesday 100°F Sunny 5 mph WSW 0%
Wednesday Night 67°F Clear 5 mph SSE 0%
Thursday 100°F Sunny 5 mph SSW 0%
Thursday Night 67°F Clear 1 to 5 mph ESE 0%
Friday 100°F Sunny 5 mph WSW 0%
Friday Night 68°F Clear 3 mph SE 0%
Saturday 101°F Sunny 1 to 5 mph WSW 0%
Saturday Night 68°F Clear 5 mph SE 0%
Sunday 98°F Sunny 5 mph SSW 0%
Sunday Night 66°F Mostly Clear 1 to 5 mph SSE 0%
Monday 94°F Sunny 1 to 6 mph SW 0%
Monday Night 63°F Clear 1 to 6 mph SE 0%

Forecast source: National Weather Service (api.weather.gov) for Whitmore (40.613, -121.936). Updated through the day.

Growing snapshot for Whitmore

Last spring frost
Jun 9
First fall frost
Sep 21
Growing season
102 days
Hardiness zone
9a

More local growing data for Whitmore: nearby ZIP 96096 weather · frost dates · planting calendar · California frost dates

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Climate data from the nearest NOAA station, Manzanita Lake, Ca (17 mi from Whitmore). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.