Belfry, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Belfry, a community in Carbon County, Montana.
Overnight
29°F
Partly Cloudy
Partly cloudy. Low around 29, with temperatures rising to around 31 overnight. Southwest wind around 6 mph.
7-day forecast for Belfry
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 29°F | Partly Cloudy | 6 mph SW | 0% |
| Wednesday | 55°F | Mostly Sunny | 0 to 6 mph NNW | 0% |
| Wednesday Night | 30°F | Mostly Clear | 0 to 9 mph SW | 0% |
| Thursday | 57°F | Mostly Sunny then Slight Chance Rain Showers | 0 to 9 mph SSE | 15% |
| Thursday Night | 32°F | Slight Chance Rain Showers | 2 mph NW | 23% |
| Friday | 57°F | Sunny | 2 to 10 mph SW | 0% |
| Friday Night | 32°F | Partly Cloudy | 9 mph SSE | 0% |
| Saturday | 59°F | Sunny | 7 to 10 mph SSE | 0% |
| Saturday Night | 36°F | Mostly Clear | 7 to 15 mph SSE | 0% |
| Sunday | 64°F | Mostly Sunny | 8 to 16 mph SSE | 0% |
| Sunday Night | 36°F | Partly Cloudy | 3 to 8 mph SW | 0% |
| Monday | 59°F | Mostly Sunny | 5 mph N | 1% |
| Monday Night | 36°F | Partly Cloudy | 5 mph SW | 1% |
| Tuesday | 63°F | Mostly Sunny | 2 to 6 mph SSE | 0% |
Forecast source: National Weather Service (api.weather.gov) for Belfry (45.137, -108.998). Updated through the day.
Growing snapshot for Belfry
Last spring frost
May 18
First fall frost
Sep 22
Growing season
125 days
Hardiness zone
5a
More local growing data for Belfry: nearby ZIP 59008 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Bearcreek
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Bridger
Edgar
Fox
Fromberg
Joliet
Luther
Montaqua
Red Lodge
Roberts
Rockvale
Roscoe
Silesia
Climate data from the nearest NOAA station, Clark 3Ne, Wy (10.3 mi from Belfry). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.