Rumsey, CA Weather & Growing Conditions
This Afternoon
52°F
Chance Light Rain
A chance of rain. Mostly cloudy. High near 52, with temperatures falling to around 48 in the afternoon. North northeast wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 52°F | Chance Light Rain | 5 mph NNE | 44% |
| Tonight | 48°F | Chance Light Rain then Mostly Cloudy | 6 to 12 mph N | 41% |
| Wednesday | 62°F | Sunny | 3 to 10 mph NNW | 0% |
| Wednesday Night | 50°F | Partly Cloudy | 3 to 9 mph WNW | 0% |
| Thursday | 66°F | Sunny | 5 to 9 mph NNW | 0% |
| Thursday Night | 53°F | Mostly Clear | 7 mph NW | 0% |
| Friday | 68°F | Sunny | 2 to 7 mph NNW | 0% |
| Friday Night | 54°F | Clear | 3 mph NW | 0% |
| Saturday | 68°F | Sunny | 2 to 6 mph NNE | 0% |
| Saturday Night | 53°F | Mostly Clear | 2 to 6 mph WSW | 0% |
| Sunday | 68°F | Mostly Sunny | 6 mph NNE | 0% |
| Sunday Night | 54°F | Partly Cloudy | 5 mph WSW | 0% |
| Monday | 66°F | Mostly Sunny | 5 mph SW | 2% |
| Monday Night | 54°F | Partly Cloudy | 6 mph W | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Rumsey, CA
Last spring frost
Apr 10
First fall frost
Nov 6
Growing season
209 days
Hardiness zone
9b
Explore more for Rumsey, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Clearlake 4 Se, Ca (15.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.