Santa Rosa, CA Weather & Growing Conditions
Overnight
53°F
Mostly Clear
Mostly clear, with a low around 53. Wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 53°F | Mostly Clear | 0 mph | 0% |
| Tuesday | 92°F | Haze then Sunny | 0 to 7 mph WSW | 0% |
| Tuesday Night | 52°F | Partly Cloudy then Patchy Fog | 0 to 6 mph SW | 0% |
| Wednesday | 89°F | Areas Of Fog then Mostly Sunny | 0 to 7 mph WSW | 0% |
| Wednesday Night | 52°F | Mostly Clear then Patchy Fog | 0 to 6 mph WSW | 0% |
| Thursday | 86°F | Patchy Fog then Sunny | 0 to 7 mph W | 0% |
| Thursday Night | 52°F | Mostly Clear | 0 to 7 mph W | 0% |
| Friday | 93°F | Sunny | 0 to 7 mph WSW | 0% |
| Friday Night | 54°F | Mostly Clear | 0 to 7 mph W | 0% |
| Saturday | 92°F | Sunny | 0 to 7 mph WSW | 0% |
| Saturday Night | 56°F | Mostly Clear | 0 to 7 mph WSW | 0% |
| Sunday | 91°F | Sunny | 0 to 7 mph SSW | 0% |
| Sunday Night | 54°F | Mostly Clear then Areas Of Fog | 1 to 7 mph SW | 0% |
| Monday | 84°F | Patchy Fog then Sunny | 1 to 7 mph SSW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Santa Rosa, CA
Last spring frost
Feb 25
First fall frost
Dec 1
Growing season
279 days
Hardiness zone
9a
Explore more for Santa Rosa, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Santa Rosa, Ca (2.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.