Pioneer, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pioneer, a community in Amador County, California.
Tonight
42°F
Mostly Clear
Mostly clear, with a low around 42. East wind around 5 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Pioneer
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 42°F | Mostly Clear | 5 mph E | 10% |
| Wednesday | 59°F | Sunny | 5 mph NNW | 0% |
| Wednesday Night | 45°F | Partly Cloudy | 3 mph NE | 0% |
| Thursday | 62°F | Sunny | 1 to 5 mph NW | 0% |
| Thursday Night | 46°F | Clear | 3 mph NNE | 0% |
| Friday | 65°F | Sunny | 0 to 5 mph N | 0% |
| Friday Night | 50°F | Clear | 0 to 5 mph NE | 0% |
| Saturday | 69°F | Sunny | 0 to 5 mph S | 0% |
| Saturday Night | 53°F | Mostly Clear | 0 to 5 mph SE | 0% |
| Sunday | 70°F | Sunny | 0 to 5 mph WNW | 0% |
| Sunday Night | 54°F | Partly Cloudy | 0 to 3 mph NE | 0% |
| Monday | 67°F | Mostly Sunny | 0 to 3 mph ESE | 0% |
| Monday Night | 52°F | Partly Cloudy | 0 to 3 mph NE | 0% |
| Tuesday | 66°F | Mostly Sunny | 0 to 3 mph SSW | 6% |
Forecast source: National Weather Service (api.weather.gov) for Pioneer (38.434, -120.586). Updated through the day.
Growing snapshot for Pioneer
Last spring frost
Mar 4
First fall frost
Dec 11
Growing season
285 days
Hardiness zone
9a
More local growing data for Pioneer: nearby ZIP 95689 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Amador City
Buena Vista
Drytown
Fiddletown
Ione
Jackson
Lockwood
Martell
Mokelumne Hill
Paloma
Pine Grove
Plymouth
Red Corral
River Pines
Sutter Creek
Volcano
Climate data from the nearest NOAA station, Sutter Hill Cdf, Ca (11.9 mi from Pioneer). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.