Cohasset, CA Weather & Growing Conditions
This Afternoon
68°F
Partly Sunny
Partly sunny. High near 68, with temperatures falling to around 64 in the afternoon. Northwest wind 5 to 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Partly Sunny | 5 to 8 mph NW | 1% |
| Tonight | 49°F | Partly Cloudy | 1 to 6 mph NNE | 2% |
| Thursday | 73°F | Sunny | 6 to 9 mph N | 0% |
| Thursday Night | 50°F | Partly Cloudy | 2 to 6 mph NNE | 0% |
| Friday | 73°F | Mostly Sunny | 5 mph NW | 0% |
| Friday Night | 52°F | Mostly Clear | 1 to 5 mph NE | 0% |
| Saturday | 73°F | Sunny | 3 mph S | 0% |
| Saturday Night | 52°F | Mostly Clear | 0 to 3 mph NE | 0% |
| Sunday | 72°F | Mostly Sunny | 3 mph WNW | 0% |
| Sunday Night | 53°F | Partly Cloudy | 2 mph ENE | 0% |
| Monday | 71°F | Mostly Sunny | 3 mph SSW | 0% |
| Monday Night | 52°F | Partly Cloudy | 2 mph NE | 1% |
| Tuesday | 71°F | Sunny | 3 mph SW | 7% |
| Tuesday Night | 52°F | Partly Cloudy | 1 to 5 mph ESE | 10% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Cohasset, CA
Last spring frost
Mar 4
First fall frost
Nov 17
Growing season
257 days
Hardiness zone
9b
Explore more for Cohasset, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Chico Univ Farm, Ca (13 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.