St. Regis, MT Weather & Growing Conditions
Tonight
46°F
Mostly Cloudy
Mostly cloudy, with a low around 46. North northwest wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 46°F | Mostly Cloudy | 2 mph NNW | 6% |
| Saturday | 74°F | Sunny | 2 mph E | 3% |
| Saturday Night | 46°F | Partly Cloudy | 1 mph S | 3% |
| Sunday | 77°F | Sunny | 1 mph ESE | 0% |
| Sunday Night | 48°F | Clear | 1 mph WSW | 0% |
| Monday | 78°F | Sunny | 0 to 3 mph SW | 0% |
| Monday Night | 48°F | Mostly Clear | 3 mph WSW | 0% |
| Tuesday | 76°F | Sunny | 2 mph SW | 0% |
| Tuesday Night | 47°F | Mostly Clear | 3 mph WSW | 1% |
| Wednesday | 73°F | Sunny | 5 mph WSW | 1% |
| Wednesday Night | 46°F | Partly Cloudy | 2 mph WSW | 2% |
| Thursday | 77°F | Mostly Sunny | 2 mph S | 2% |
| Thursday Night | 48°F | Partly Cloudy | 2 mph SW | 1% |
| Friday | 73°F | Mostly Sunny | 1 to 5 mph SW | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for St. Regis, MT
Growing season
101 days
Hardiness zone
6a
Explore more for St. Regis, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Saint Regis 1 Ne, Mt (3.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.