Rumsey, CA Weather & Growing Conditions
Today
79°F
Haze then Partly Sunny
Haze between 7am and 9am. Partly sunny. High near 79, with temperatures falling to around 77 in the afternoon. East northeast wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 79°F | Haze then Partly Sunny | 6 mph ENE | 0% |
| Tonight | 62°F | Mostly Cloudy | 2 to 6 mph W | 0% |
| Monday | 81°F | Mostly Sunny | 3 to 9 mph SW | 0% |
| Monday Night | 61°F | Mostly Clear | 3 to 9 mph WSW | 0% |
| Tuesday | 81°F | Sunny | 3 to 7 mph NW | 0% |
| Tuesday Night | 64°F | Mostly Clear | 2 to 7 mph W | 0% |
| Wednesday | 83°F | Sunny | 7 mph ENE | 0% |
| Wednesday Night | 67°F | Mostly Clear | 1 to 5 mph W | 0% |
| Thursday | 86°F | Sunny | 2 to 9 mph WNW | 0% |
| Thursday Night | 66°F | Partly Cloudy | 3 to 9 mph WSW | 0% |
| Friday | 81°F | Mostly Sunny | 3 to 9 mph WSW | 0% |
| Friday Night | 62°F | Mostly Clear | 5 to 9 mph W | 1% |
| Saturday | 77°F | Sunny | 5 to 9 mph W | 1% |
| Saturday Night | 58°F | Mostly Clear | 3 to 9 mph WSW | 1% |
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 (16.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.