Belfry, MT Weather & Growing Conditions
Tonight
30°F
Mostly Clear
Mostly clear. Low around 30, with temperatures rising to around 32 overnight. South southwest wind 2 to 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 30°F | Mostly Clear | 2 to 8 mph SSW | 0% |
| Wednesday | 54°F | Mostly Sunny | 0 to 5 mph N | 0% |
| Wednesday Night | 31°F | Partly Cloudy | 2 to 9 mph SW | 0% |
| Thursday | 56°F | Mostly Sunny | 0 to 9 mph SE | 8% |
| Thursday Night | 32°F | Partly Cloudy | 0 to 3 mph W | 11% |
| Friday | 57°F | Sunny | 3 to 9 mph S | 5% |
| Friday Night | 33°F | Partly Cloudy | 9 mph S | 6% |
| Saturday | 59°F | Sunny | 7 to 10 mph SSE | 0% |
| Saturday Night | 37°F | Mostly Clear | 7 to 16 mph S | 0% |
| Sunday | 65°F | Mostly Sunny | 9 to 17 mph SSE | 0% |
| Sunday Night | 37°F | Partly Cloudy | 3 to 9 mph SW | 0% |
| Monday | 61°F | Mostly Sunny | 5 mph SE | 0% |
| Monday Night | 37°F | Partly Cloudy | 5 mph SW | 0% |
| Tuesday | 63°F | Mostly Sunny | 5 mph S | 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 Nov 4, 2026.