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Glen Ellen, CA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Glen Ellen, a community in Sonoma County, California.

Tonight
53°F
Mostly Clear
Mostly clear. Low around 53, with temperatures rising to around 55 overnight. West northwest wind around 2 mph.

7-day forecast for Glen Ellen

WhenTempForecastWindPrecip
Tonight 53°F Mostly Clear 2 mph WNW 0%
Saturday 90°F Sunny 2 mph SW 0%
Saturday Night 53°F Partly Cloudy 2 mph SW 0%
Sunday 83°F Partly Sunny 1 mph SSW 0%
Sunday Night 52°F Mostly Cloudy 1 mph SSW 0%
Monday 85°F Areas Of Fog then Mostly Sunny 0 to 5 mph SW 0%
Monday Night 52°F Mostly Clear 0 to 5 mph SW 0%
Tuesday 88°F Patchy Fog then Sunny 2 mph SW 0%
Tuesday Night 54°F Mostly Clear 2 mph WSW 0%
Wednesday 96°F Sunny 2 mph NNW 0%
Wednesday Night 59°F Mostly Clear 2 mph WNW 0%
Thursday 96°F Sunny 0 to 3 mph WSW 0%
Thursday Night 58°F Partly Cloudy 0 to 3 mph WNW 0%
Friday 91°F Mostly Sunny 1 to 5 mph W 0%

Forecast source: National Weather Service (api.weather.gov) for Glen Ellen (38.355, -122.543). Updated through the day.

Growing snapshot for Glen Ellen

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

More local growing data for Glen Ellen: nearby ZIP 95431 weather · frost dates · planting calendar · California frost dates

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Climate data from the nearest NOAA station, Sonoma, Ca (4.5 mi from Glen Ellen). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.