Fort Shaw, MT Weather & Growing Conditions
Overnight
51°F
Chance Light Rain
A chance of rain after 2am. Cloudy, with a low around 51. North wind around 7 mph. Chance of precipitation is 30%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 51°F | Chance Light Rain | 7 mph N | 27% |
| Saturday | 66°F | Cloudy | 7 mph NE | 13% |
| Saturday Night | 47°F | Mostly Cloudy | 2 to 7 mph SE | 2% |
| Sunday | 73°F | Mostly Sunny | 5 mph S | 1% |
| Sunday Night | 47°F | Mostly Clear | 3 to 7 mph SSE | 0% |
| Monday | 78°F | Sunny | 3 to 8 mph SSW | 0% |
| Monday Night | 49°F | Mostly Clear | 6 mph SW | 0% |
| Tuesday | 77°F | Sunny | 7 mph WSW | 0% |
| Tuesday Night | 49°F | Mostly Clear | 3 to 7 mph ESE | 0% |
| Wednesday | 77°F | Sunny | 5 to 8 mph SW | 0% |
| Wednesday Night | 49°F | Mostly Clear | 3 to 7 mph WSW | 3% |
| Thursday | 78°F | Sunny | 5 to 8 mph SSW | 1% |
| Thursday Night | 50°F | Partly Cloudy | 5 to 8 mph S | 2% |
| Friday | 78°F | Mostly Sunny | 5 to 12 mph SSW | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Fort Shaw, MT
Last spring frost
Jun 2
First fall frost
Sep 10
Growing season
96 days
Hardiness zone
4b
Explore more for Fort Shaw, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Sun Rvr 4 S, Mt (7.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.