Fort Shaw, MT Weather & Growing Conditions
Today
77°F
Sunny
Sunny, with a high near 77. South southeast wind 2 to 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Sunny | 2 to 6 mph SSE | 0% |
| Tonight | 48°F | Mostly Clear | 5 to 8 mph ENE | 1% |
| Wednesday | 85°F | Sunny | 7 mph W | 0% |
| Wednesday Night | 52°F | Mostly Clear | 7 mph W | 0% |
| Thursday | 91°F | Sunny | 8 mph W | 0% |
| Thursday Night | 55°F | Mostly Clear | 6 to 9 mph WNW | 0% |
| Friday | 95°F | Sunny | 3 to 18 mph W | 0% |
| Friday Night | 56°F | Mostly Clear | 9 to 20 mph W | 0% |
| Saturday | 93°F | Sunny | 6 to 13 mph W | 0% |
| Saturday Night | 57°F | Mostly Clear | 7 to 15 mph NW | 0% |
| Sunday | 88°F | Sunny | 6 to 9 mph NW | 0% |
| Sunday Night | 55°F | Partly Cloudy | 9 to 13 mph N | 1% |
| Monday | 86°F | Sunny | 8 mph N | 4% |
| Monday Night | 55°F | Mostly Clear | 8 to 12 mph NNE | 6% |
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 Aug 4, 2026.