Stonyford, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Stonyford, a community in Colusa County, California.
Tonight
39°F
Haze then Partly Cloudy
Haze and patchy fog between 10pm and midnight. Partly cloudy. Low around 39, with temperatures rising to around 41 overnight. Northwest wind around 3 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Stonyford
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 39°F | Haze then Partly Cloudy | 3 mph NW | 6% |
| Wednesday | 65°F | Sunny | 5 mph NNW | 0% |
| Wednesday Night | 43°F | Partly Cloudy | 3 mph WNW | 0% |
| Thursday | 70°F | Sunny | 2 to 6 mph NNW | 0% |
| Thursday Night | 46°F | Mostly Clear | 0 to 3 mph NW | 0% |
| Friday | 73°F | Sunny | 0 to 3 mph NNE | 0% |
| Friday Night | 48°F | Mostly Clear | 2 mph NNW | 0% |
| Saturday | 72°F | Sunny | 0 to 5 mph E | 0% |
| Saturday Night | 46°F | Mostly Clear | 3 mph W | 0% |
| Sunday | 71°F | Mostly Sunny | 0 to 5 mph NE | 0% |
| Sunday Night | 46°F | Partly Cloudy | 2 mph NW | 0% |
| Monday | 69°F | Mostly Sunny | 0 to 3 mph ENE | 3% |
| Monday Night | 46°F | Partly Cloudy | 3 mph W | 3% |
| Tuesday | 70°F | Mostly Sunny | 0 to 5 mph ENE | 13% |
Forecast source: National Weather Service (api.weather.gov) for Stonyford (39.369, -122.544). Updated through the day.
Growing snapshot for Stonyford
Last spring frost
Apr 6
First fall frost
Nov 10
Growing season
219 days
Hardiness zone
9a
More local growing data for Stonyford: nearby ZIP 95979 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, East Park Rsvr, Ca (5.3 mi from Stonyford). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.