Glen Ellen, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Glen Ellen, a community in Sonoma County, California.
Today
100°F
Sunny
Sunny. High near 100, with temperatures falling to around 96 in the afternoon. West wind 1 to 5 mph.
7-day forecast for Glen Ellen
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 100°F | Sunny | 1 to 5 mph W | 0% |
| Tonight | 54°F | Mostly Clear | 1 to 5 mph WNW | 0% |
| Wednesday | 97°F | Sunny | 3 mph W | 0% |
| Wednesday Night | 53°F | Mostly Clear | 3 mph W | 0% |
| Thursday | 94°F | Sunny | 3 mph WSW | 0% |
| Thursday Night | 54°F | Mostly Clear | 3 mph W | 0% |
| Friday | 100°F | Sunny | 0 to 5 mph WSW | 0% |
| Friday Night | 56°F | Mostly Clear | 0 to 5 mph SW | 0% |
| Saturday | 100°F | Sunny | 0 to 3 mph SSW | 0% |
| Saturday Night | 58°F | Mostly Clear | 0 to 3 mph SSW | 0% |
| Sunday | 97°F | Sunny | 0 to 5 mph SSW | 0% |
| Sunday Night | 55°F | Mostly Clear | 1 to 5 mph SSW | 0% |
| Monday | 89°F | Sunny | 1 to 6 mph SSW | 0% |
| Monday Night | 53°F | Mostly Clear | 1 to 6 mph SW | 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 Aug 4, 2026.