Caspar, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Caspar, a community in Mendocino County, California.
Overnight
49°F
Partly Cloudy
Partly cloudy, with a low around 49. South southwest wind 1 to 7 mph.
7-day forecast for Caspar
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 49°F | Partly Cloudy | 1 to 7 mph SSW | 0% |
| Tuesday | 67°F | Mostly Sunny | 7 to 10 mph S | 0% |
| Tuesday Night | 51°F | Patchy Fog | 1 to 7 mph S | 1% |
| Wednesday | 69°F | Mostly Sunny | 2 to 9 mph SSW | 1% |
| Wednesday Night | 51°F | Patchy Fog | 0 to 6 mph W | 0% |
| Thursday | 68°F | Patchy Fog then Mostly Sunny | 0 to 5 mph W | 0% |
| Thursday Night | 52°F | Partly Cloudy | 1 to 5 mph NNW | 0% |
| Friday | 70°F | Mostly Sunny | 1 to 6 mph NW | 0% |
| Friday Night | 53°F | Partly Cloudy | 1 to 5 mph NNW | 0% |
| Saturday | 72°F | Mostly Sunny | 1 to 6 mph NNW | 0% |
| Saturday Night | 54°F | Partly Cloudy | 6 mph NNW | 0% |
| Sunday | 70°F | Sunny | 5 to 8 mph NNW | 0% |
| Sunday Night | 52°F | Partly Cloudy | 3 to 8 mph NNW | 0% |
| Monday | 68°F | Sunny | 3 to 8 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Caspar (39.363, -123.804). Updated through the day.
Growing snapshot for Caspar
Last spring frost
Mar 2
First fall frost
Dec 1
Growing season
272 days
Hardiness zone
9b
More local growing data for Caspar: nearby ZIP 95420 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Ft Bragg 5 N, Ca (10.4 mi from Caspar). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.