Belfry, MT Weather & Growing Conditions
Overnight
47°F
Patchy Smoke
Patchy smoke. Partly cloudy. Low around 47, with temperatures rising to around 49 overnight. Northwest wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 47°F | Patchy Smoke | 6 mph NW | 0% |
| Tuesday | 77°F | Patchy Smoke | 2 to 9 mph NNE | 11% |
| Tuesday Night | 52°F | Patchy Smoke | 2 to 13 mph WNW | 9% |
| Wednesday | 86°F | Sunny | 1 to 6 mph SE | 0% |
| Wednesday Night | 56°F | Mostly Clear | 6 mph NW | 0% |
| Thursday | 95°F | Sunny | 1 to 5 mph SE | 0% |
| Thursday Night | 61°F | Mostly Clear | 3 to 8 mph NW | 0% |
| Friday | 98°F | Sunny | 1 to 5 mph SSE | 0% |
| Friday Night | 65°F | Partly Cloudy | 7 to 10 mph WNW | 0% |
| Saturday | 97°F | Sunny | 2 to 9 mph NNE | 0% |
| Saturday Night | 64°F | Partly Cloudy | 5 to 9 mph NNW | 1% |
| Sunday | 95°F | Sunny | 3 to 9 mph N | 4% |
| Sunday Night | 63°F | Partly Cloudy | 7 to 12 mph NNW | 7% |
| Monday | 92°F | Sunny | 7 to 10 mph N | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Belfry, MT
Last spring frost
May 18
First fall frost
Sep 22
Growing season
125 days
Hardiness zone
5a
Explore more for Belfry, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Clark 3Ne, Wy (10.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.