Downieville, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Downieville, a community in Sierra County, California.
Overnight
35°F
Patchy Fog
Patchy fog before 2am, then patchy frost. Mostly clear, with a low around 35. Northeast wind around 2 mph.
7-day forecast for Downieville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 35°F | Patchy Fog | 2 mph NE | 0% |
| Wednesday | 67°F | Patchy Fog then Sunny | 0 to 3 mph WSW | 1% |
| Wednesday Night | 37°F | Partly Cloudy then Patchy Frost | 3 mph NE | 1% |
| Thursday | 71°F | Patchy Frost then Sunny | 3 mph NE | 0% |
| Thursday Night | 38°F | Mostly Clear | 1 to 8 mph NE | 0% |
| Friday | 75°F | Areas Of Frost then Sunny | 0 to 5 mph NE | 0% |
| Friday Night | 40°F | Mostly Clear | 0 to 10 mph NNE | 0% |
| Saturday | 76°F | Sunny | 0 to 5 mph SE | 0% |
| Saturday Night | 41°F | Mostly Clear | 0 to 3 mph NE | 0% |
| Sunday | 73°F | Mostly Sunny | 0 to 3 mph S | 0% |
| Sunday Night | 41°F | Partly Cloudy | 0 to 3 mph E | 0% |
| Monday | 69°F | Mostly Sunny | 0 to 3 mph S | 1% |
| Monday Night | 40°F | Partly Cloudy | 2 mph SE | 1% |
| Tuesday | 69°F | Sunny then Slight Chance Light Rain | 3 mph SSE | 15% |
Forecast source: National Weather Service (api.weather.gov) for Downieville (39.579, -120.816). Updated through the day.
Growing snapshot for Downieville
Last spring frost
Apr 28
First fall frost
Oct 25
Growing season
178 days
Hardiness zone
8a
More local growing data for Downieville: nearby ZIP 95936 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Downieville, Ca (2.9 mi from Downieville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.