Downieville, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Downieville, a community in Sierra County, California.
This Afternoon
59°F
Haze
Haze and a chance of rain and patchy fog. Mostly cloudy. High near 59, with temperatures falling to around 51 in the afternoon. Wind around 0 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Downieville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 59°F | Haze | 0 mph | 37% |
| Tonight | 35°F | Haze | 2 mph ENE | 30% |
| Wednesday | 67°F | Patchy Fog then Sunny | 0 to 3 mph NW | 0% |
| Wednesday Night | 37°F | Partly Cloudy then Patchy Frost | 3 mph SE | 0% |
| Thursday | 71°F | Patchy Frost then Sunny | 0 to 5 mph NNE | 0% |
| Thursday Night | 37°F | Mostly Clear | 0 to 8 mph NNE | 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 N | 0% |
| Saturday Night | 42°F | Mostly Clear | 0 to 3 mph ENE | 0% |
| Sunday | 73°F | Mostly Sunny | 0 to 5 mph S | 0% |
| Sunday Night | 42°F | Partly Cloudy | 2 mph E | 0% |
| Monday | 71°F | Mostly Sunny | 0 to 3 mph SSE | 4% |
| Monday Night | 41°F | Partly Cloudy | 2 mph ESE | 4% |
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.