Harman US

Glen Ellen, CA Weather & Growing Conditions

Overnight
56°F
Mostly Clear
Mostly clear, with a low around 56. North northwest wind around 1 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 56°F Mostly Clear 1 mph NNW 0%
Tuesday 99°F Haze then Sunny 1 to 5 mph WSW 0%
Tuesday Night 53°F Mostly Clear 5 mph NW 0%
Wednesday 96°F Sunny 5 mph W 0%
Wednesday Night 53°F Mostly Clear 5 mph W 0%
Thursday 94°F Sunny 5 mph WSW 0%
Thursday Night 54°F Mostly Clear 5 mph WSW 0%
Friday 100°F Sunny 1 to 5 mph WSW 0%
Friday Night 56°F Mostly Clear 1 to 5 mph WSW 0%
Saturday 99°F Sunny 1 to 5 mph SW 0%
Saturday Night 58°F Mostly Clear 3 mph SW 0%
Sunday 96°F Sunny 1 to 5 mph SSW 0%
Sunday Night 54°F Mostly Clear then Patchy Fog 5 mph SSW 0%
Monday 88°F Sunny 2 to 6 mph SSW 0%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Glen Ellen, CA

Last spring frost
Mar 2
First fall frost
Nov 27
Growing season
270 days
Hardiness zone
9b

Explore more for Glen Ellen, CA: full frost dates · planting calendar · California frost dates

Climate data from the nearest NOAA station, Sonoma, Ca (6.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.