St. Regis, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Regis, a community in Mineral County, Montana.
Today
85°F
Patchy Smoke
Patchy smoke before 2pm. Sunny, with a high near 85. South wind around 1 mph.
7-day forecast for St. Regis
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Patchy Smoke | 1 mph S | 0% |
| Tonight | 46°F | Patchy Smoke then Mostly Clear | 1 mph WNW | 0% |
| Wednesday | 91°F | Sunny | 1 mph SW | 0% |
| Wednesday Night | 49°F | Clear | 2 mph WSW | 0% |
| Thursday | 98°F | Sunny | 2 mph SW | 0% |
| Thursday Night | 52°F | Mostly Clear | 3 mph SW | 0% |
| Friday | 97°F | Sunny | 0 to 5 mph SW | 0% |
| Friday Night | 51°F | Clear | 3 to 9 mph SW | 0% |
| Saturday | 94°F | Sunny | 2 to 7 mph SW | 0% |
| Saturday Night | 50°F | Mostly Clear | 2 to 7 mph WSW | 0% |
| Sunday | 92°F | Sunny | 1 to 5 mph WSW | 0% |
| Sunday Night | 49°F | Mostly Clear | 1 to 6 mph WSW | 0% |
| Monday | 91°F | Sunny | 2 mph WNW | 0% |
| Monday Night | 49°F | Mostly Clear | 1 to 5 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for St. Regis (47.305, -115.104). Updated through the day.
Growing snapshot for St. Regis
Growing season
101 days
Hardiness zone
6a
More local growing data for St. Regis: nearby ZIP 59866 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Saint Regis 1 Ne, Mt (3.1 mi from St. Regis). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.