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.
Overnight
39°F
Patchy Smoke
Patchy smoke. Mostly clear, with a low around 39. East wind around 2 mph.
7-day forecast for Butte-Silver Bow
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 39°F | Patchy Smoke | 2 mph E | 0% |
| Tuesday | 73°F | Patchy Smoke | 1 to 8 mph NE | 0% |
| Tuesday Night | 47°F | Patchy Smoke | 2 to 10 mph NNW | 1% |
| Wednesday | 81°F | Sunny then Patchy Smoke | 2 to 8 mph WSW | 0% |
| Wednesday Night | 50°F | Patchy Smoke then Mostly Clear | 5 to 12 mph W | 0% |
| Thursday | 86°F | Sunny | 3 to 12 mph WSW | 0% |
| Thursday Night | 54°F | Mostly Clear | 3 to 13 mph W | 0% |
| Friday | 89°F | Sunny | 5 to 15 mph WSW | 0% |
| Friday Night | 55°F | Mostly Clear | 5 to 17 mph WNW | 0% |
| Saturday | 88°F | Sunny | 3 to 15 mph WSW | 0% |
| Saturday Night | 55°F | Mostly Clear | 2 to 14 mph NW | 1% |
| Sunday | 86°F | Sunny | 2 to 9 mph W | 1% |
| Sunday Night | 54°F | Mostly Clear | 3 to 12 mph NNW | 0% |
| Monday | 84°F | Sunny | 1 to 8 mph NW | 1% |
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 Aug 4, 2026.