Belt, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Belt, a town in Cascade County, Montana.
Overnight
42°F
Mostly Clear
Mostly clear. Low around 42, with temperatures rising to around 45 overnight. South southeast wind around 5 mph.
7-day forecast for Belt
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 42°F | Mostly Clear | 5 mph SSE | 0% |
| Tuesday | 76°F | Sunny | 1 to 5 mph ENE | 0% |
| Tuesday Night | 50°F | Mostly Clear | 5 to 8 mph E | 1% |
| Wednesday | 83°F | Sunny | 8 mph WSW | 0% |
| Wednesday Night | 54°F | Mostly Clear | 5 to 8 mph SSE | 0% |
| Thursday | 91°F | Sunny | 5 to 12 mph WSW | 0% |
| Thursday Night | 57°F | Mostly Clear | 7 mph ESE | 0% |
| Friday | 95°F | Sunny | 3 to 18 mph WSW | 0% |
| Friday Night | 59°F | Mostly Clear | 7 to 12 mph WSW | 0% |
| Saturday | 92°F | Sunny | 8 mph WSW | 0% |
| Saturday Night | 59°F | Mostly Clear | 5 to 9 mph S | 0% |
| Sunday | 88°F | Sunny | 3 to 7 mph WNW | 0% |
| Sunday Night | 57°F | Partly Cloudy | 2 to 9 mph ENE | 4% |
| Monday | 86°F | Mostly Sunny | 2 to 7 mph NW | 7% |
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 Aug 4, 2026.