Butte-Silver Bow (balance), MT Weather & Growing Conditions
Overnight
43°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy, with a low around 43. North wind around 7 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 43°F | Showers And Thunderstorms | 7 mph N | 94% |
| Saturday | 49°F | Showers And Thunderstorms | 6 mph NE | 99% |
| Saturday Night | 36°F | Chance Light Rain then Mostly Cloudy | 1 to 5 mph NNE | 32% |
| Sunday | 60°F | Patchy Fog then Mostly Sunny | 1 to 5 mph W | 2% |
| Sunday Night | 38°F | Mostly Clear | 5 mph SSW | 1% |
| Monday | 65°F | Sunny | 1 to 5 mph SW | 0% |
| Monday Night | 41°F | Mostly Clear | 1 to 5 mph WNW | 0% |
| Tuesday | 66°F | Sunny | 0 to 5 mph SSW | 1% |
| Tuesday Night | 41°F | Partly Cloudy | 1 to 5 mph WNW | 2% |
| Wednesday | 66°F | Sunny | 1 to 7 mph SSW | 2% |
| Wednesday Night | 42°F | Mostly Clear | 6 mph S | 3% |
| Thursday | 67°F | Sunny | 3 to 9 mph S | 2% |
| Thursday Night | 42°F | Mostly Clear | 7 mph SSE | 4% |
| Friday | 66°F | Mostly Sunny | 5 to 9 mph S | 6% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Butte-Silver Bow (balance), MT
Last spring frost
Jun 13
First fall frost
Sep 5
Growing season
83 days
Hardiness zone
5a
Explore more for Butte-Silver Bow (balance), MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Butte Bert Mooney Ap, Mt (5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.