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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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.