Caspar, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Caspar, a community in Mendocino County, California.
This Afternoon
66°F
Mostly Sunny
Mostly sunny. High near 66, with temperatures falling to around 62 in the afternoon. Northwest wind around 9 mph.
7-day forecast for Caspar
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 66°F | Mostly Sunny | 9 mph NW | 0% |
| Tonight | 50°F | Mostly Cloudy | 5 to 8 mph NNW | 1% |
| Saturday | 66°F | Mostly Sunny | 2 to 10 mph NW | 1% |
| Saturday Night | 51°F | Mostly Cloudy | 2 to 9 mph NNW | 0% |
| Sunday | 66°F | Partly Sunny | 2 to 8 mph NNW | 0% |
| Sunday Night | 51°F | Mostly Cloudy then Patchy Fog | 1 to 8 mph NNW | 1% |
| Monday | 68°F | Mostly Sunny | 2 to 6 mph NNW | 0% |
| Monday Night | 52°F | Partly Cloudy then Patchy Fog | 1 to 6 mph NNW | 0% |
| Tuesday | 69°F | Patchy Fog then Mostly Sunny | 1 to 8 mph NNW | 0% |
| Tuesday Night | 52°F | Partly Cloudy | 2 to 8 mph NNW | 0% |
| Wednesday | 70°F | Mostly Sunny | 2 to 6 mph NNW | 0% |
| Wednesday Night | 52°F | Mostly Cloudy | 1 to 6 mph NNW | 0% |
| Thursday | 70°F | Mostly Sunny | 1 to 6 mph NNW | 0% |
| Thursday Night | 52°F | Mostly Cloudy | 1 to 5 mph NNW | 2% |
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
Nearby towns & communities
Albion
Anchor Bay
Boonville
Brooktrails
Calpella
Cleone
Comptche
Covelo
Fort Bragg
Hopland
Laytonville
Leggett
Little River
Manchester
Mendocino
Philo
Point Arena
Potter Valley
Redwood Valley
Talmage
Ukiah
Willits
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 Sep 19, 2026.