Butte-Silver Bow, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Butte-Silver Bow, a community in Silver Bow County, Montana.
Tonight
28°F
Mostly Cloudy
Mostly cloudy, with a low around 28. South southeast wind 2 to 6 mph.
7-day forecast for Butte-Silver Bow
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 28°F | Mostly Cloudy | 2 to 6 mph SSE | 0% |
| Wednesday | 48°F | Mostly Sunny | 2 mph NNE | 0% |
| Wednesday Night | 28°F | Mostly Clear | 2 to 10 mph S | 0% |
| Thursday | 45°F | Mostly Sunny | 6 to 9 mph SW | 6% |
| Thursday Night | 27°F | Partly Cloudy | 6 to 9 mph SW | 6% |
| Friday | 46°F | Mostly Sunny | 12 mph SSW | 1% |
| Friday Night | 32°F | Partly Cloudy | 9 to 15 mph SW | 1% |
| Saturday | 51°F | Mostly Sunny | 6 to 10 mph SSW | 0% |
| Saturday Night | 34°F | Partly Cloudy | 9 to 21 mph S | 1% |
| Sunday | 54°F | Mostly Sunny | 10 to 21 mph SSW | 2% |
| Sunday Night | 33°F | Partly Cloudy | 8 to 12 mph SW | 2% |
| Monday | 50°F | Partly Sunny | 8 mph SSW | 3% |
| Monday Night | 34°F | Partly Cloudy | 7 to 13 mph SSW | 3% |
| Tuesday | 51°F | Mostly Sunny | 10 mph SW | 5% |
Forecast source: National Weather Service (api.weather.gov) for Butte-Silver Bow (45.896, -112.660). Updated through the day.
Growing snapshot for Butte-Silver Bow
Last spring frost
Jun 13
First fall frost
Sep 5
Growing season
83 days
Hardiness zone
5a
More local growing data for Butte-Silver Bow: nearby ZIP 59750 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Butte Bert Mooney Ap, Mt (9.5 mi from Butte-Silver Bow). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.