Belt, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Belt, a town in Cascade County, Montana.
Tonight
30°F
Partly Cloudy
Partly cloudy, with a low around 30. South wind 1 to 5 mph.
7-day forecast for Belt
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 30°F | Partly Cloudy | 1 to 5 mph S | 0% |
| Wednesday | 47°F | Mostly Sunny | 2 mph SW | 0% |
| Wednesday Night | 32°F | Mostly Clear | 1 to 8 mph S | 0% |
| Thursday | 55°F | Sunny | 8 to 17 mph SW | 1% |
| Thursday Night | 34°F | Mostly Clear | 12 to 16 mph SW | 1% |
| Friday | 52°F | Mostly Sunny | 13 to 26 mph SW | 3% |
| Friday Night | 36°F | Partly Cloudy | 16 to 26 mph SW | 7% |
| Saturday | 53°F | Mostly Sunny | 6 to 17 mph SW | 0% |
| Saturday Night | 39°F | Partly Cloudy | 6 to 14 mph SSW | 0% |
| Sunday | 61°F | Mostly Sunny | 10 to 16 mph SSW | 1% |
| Sunday Night | 38°F | Mostly Cloudy | 6 to 13 mph SW | 1% |
| Monday | 55°F | Partly Sunny | 6 mph SW | 2% |
| Monday Night | 39°F | Mostly Cloudy | 3 to 10 mph SSW | 2% |
| Tuesday | 58°F | Mostly Sunny | 9 to 16 mph SW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Belt (47.387, -110.928). Updated through the day.
Growing snapshot for Belt
Last spring frost
May 22
First fall frost
Sep 23
Growing season
123 days
Hardiness zone
4b
More local growing data for Belt: nearby ZIP 59412 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Big Stone Colony
Black Eagle
Cascade
Cascade Colony
Centerville
Fair Haven Colony
Fairfield
Fort Shaw
Gibson Flats
Great Falls
Hardy
Malmstrom AFB
Monarch
Neihart
Pleasant Valley Colony
Riceville
Sand Coulee
Simms
Stockett
Sun Prairie
Sun River
Tracy
Ulm
Vaughn
Climate data from the nearest NOAA station, Raynesford 2 Nnw, Mt (5.5 mi from Belt). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.