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
59°F
Light Rain
Rain before 3pm, then rain and patchy fog. Cloudy. High near 59, with temperatures falling to around 54 in the afternoon. Southeast wind 2 to 9 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Glen Ellen
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 59°F | Light Rain | 2 to 9 mph SE | 91% |
| Tonight | 46°F | Chance Light Rain then Mostly Cloudy | 5 mph NE | 46% |
| Wednesday | 68°F | Sunny | 3 mph NW | 1% |
| Wednesday Night | 45°F | Partly Cloudy | 6 mph NW | 0% |
| Thursday | 73°F | Sunny | 0 to 5 mph N | 0% |
| Thursday Night | 47°F | Mostly Clear | 2 mph NNW | 0% |
| Friday | 75°F | Sunny | 2 mph N | 0% |
| Friday Night | 49°F | Mostly Clear | 1 mph N | 0% |
| Saturday | 76°F | Sunny | 3 mph NE | 0% |
| Saturday Night | 49°F | Mostly Clear | 2 mph NW | 0% |
| Sunday | 75°F | Mostly Sunny | 3 mph NNW | 0% |
| Sunday Night | 50°F | Mostly Cloudy | 2 mph NW | 0% |
| Monday | 72°F | Partly Sunny | 2 mph WNW | 2% |
| Monday Night | 48°F | Partly Cloudy | 2 mph NW | 3% |
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 Nov 3, 2026.