Sebastopol, CA Weather & Growing Conditions
Today
86°F
Sunny
Sunny. High near 86, with temperatures falling to around 80 in the afternoon. South southwest wind 1 to 9 mph, with gusts as high as 18 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 1 to 9 mph SSW | 0% |
| Tonight | 51°F | Areas Of Fog | 0 to 6 mph SW | 1% |
| Wednesday | 84°F | Areas Of Fog then Mostly Sunny | 0 to 9 mph SSW | 0% |
| Wednesday Night | 50°F | Areas Of Fog | 0 to 7 mph WNW | 0% |
| Thursday | 82°F | Areas Of Fog then Mostly Sunny | 0 to 8 mph WSW | 0% |
| Thursday Night | 50°F | Patchy Fog | 0 to 8 mph WNW | 0% |
| Friday | 90°F | Sunny | 0 to 8 mph WSW | 0% |
| Friday Night | 52°F | Partly Cloudy | 0 to 8 mph W | 0% |
| Saturday | 89°F | Sunny | 0 to 8 mph WSW | 0% |
| Saturday Night | 55°F | Mostly Clear | 1 to 8 mph WSW | 0% |
| Sunday | 90°F | Sunny | 1 to 9 mph SW | 0% |
| Sunday Night | 53°F | Mostly Clear then Areas Of Fog | 1 to 9 mph WSW | 0% |
| Monday | 83°F | Areas Of Fog then Sunny | 1 to 9 mph SW | 0% |
| Monday Night | 51°F | Partly Cloudy | 0 to 9 mph WSW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sebastopol, CA
Last spring frost
Mar 20
First fall frost
Nov 13
Growing season
240 days
Hardiness zone
9a
Explore more for Sebastopol, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Graton, Ca (2.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.