Mt. Bullion, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mt. Bullion, a community in Mariposa County, California.
Tonight
61°F
Partly Cloudy
Partly cloudy, with a low around 61. North wind 0 to 5 mph.
7-day forecast for Mt. Bullion
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 61°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 83°F | Sunny | 0 to 5 mph SSW | 0% |
| Saturday Night | 65°F | Mostly Cloudy then Smoke | 5 mph NNE | 0% |
| Sunday | 84°F | Areas Of Smoke then Partly Sunny | 0 to 5 mph W | 0% |
| Sunday Night | 66°F | Mostly Cloudy | 0 to 5 mph N | 0% |
| Monday | 83°F | Sunny | 0 to 10 mph WNW | 0% |
| Monday Night | 64°F | Mostly Clear | 0 to 10 mph N | 0% |
| Tuesday | 85°F | Sunny | 0 to 5 mph WNW | 0% |
| Tuesday Night | 66°F | Mostly Clear | 0 to 5 mph NNE | 0% |
| Wednesday | 90°F | Sunny | 5 mph WSW | 0% |
| Wednesday Night | 70°F | Mostly Clear | 5 mph N | 0% |
| Thursday | 93°F | Sunny | 5 to 10 mph SSW | 0% |
| Thursday Night | 71°F | Partly Cloudy | 5 mph NNE | 1% |
| Friday | 90°F | Sunny | 5 mph SSW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Mt. Bullion (37.509, -120.042). Updated through the day.
Growing snapshot for Mt. Bullion
Last spring frost
May 24
First fall frost
Oct 10
Growing season
137 days
Hardiness zone
9a
More local growing data for Mt. Bullion: nearby ZIP 95338 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Bear Valley
Bootjack
Buck Meadows
Catheys Valley
Coulterville
El Portal
Fish Camp
Foresta
Greeley Hill
Hornitos
Mariposa
Midpines
Wawona
Yosemite Valley
Yosemite West
Climate data from the nearest NOAA station, So Entrance Yosemite Np, Ca (19.2 mi from Mt. Bullion). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.