Caspar, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Caspar, a community in Mendocino County, California.
Today
62°F
Light Rain
Rain. Mostly cloudy. High near 62, with temperatures falling to around 58 in the afternoon. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Caspar
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 62°F | Light Rain | 10 mph SE | 76% |
| Tonight | 46°F | Slight Chance Light Rain then Mostly Cloudy | 8 mph ESE | 17% |
| Wednesday | 65°F | Patchy Fog then Partly Sunny | 2 to 7 mph WNW | 2% |
| Wednesday Night | 48°F | Mostly Cloudy then Patchy Fog | 3 to 7 mph NNW | 2% |
| Thursday | 66°F | Patchy Fog then Mostly Sunny | 3 to 9 mph NNW | 0% |
| Thursday Night | 47°F | Partly Cloudy | 2 to 9 mph NNW | 1% |
| Friday | 68°F | Mostly Sunny | 2 to 7 mph NNW | 1% |
| Friday Night | 46°F | Partly Cloudy then Patchy Fog | 1 to 7 mph N | 0% |
| Saturday | 68°F | Patchy Fog then Mostly Sunny | 3 mph NNW | 1% |
| Saturday Night | 49°F | Mostly Cloudy then Patchy Fog | 3 mph N | 3% |
| Sunday | 67°F | Patchy Fog then Partly Sunny | 1 to 6 mph NNW | 2% |
| Sunday Night | 49°F | Mostly Cloudy then Patchy Fog | 1 to 6 mph N | 2% |
| Monday | 66°F | Patchy Fog then Partly Sunny | 1 to 5 mph NNW | 9% |
| Monday Night | 46°F | Mostly Cloudy then Slight Chance Light Rain | 5 mph NE | 20% |
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 Nov 3, 2026.