St. Regis, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Regis, a community in Mineral County, Montana.
This Afternoon
80°F
Partly Sunny
Partly sunny, with a high near 80. Northwest wind around 6 mph.
7-day forecast for St. Regis
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 80°F | Partly Sunny | 6 mph NW | 5% |
| Tonight | 46°F | Mostly Cloudy then Patchy Fog | 1 mph NW | 7% |
| Saturday | 80°F | Areas Of Fog then Sunny | 1 mph ESE | 3% |
| Saturday Night | 46°F | Partly Cloudy then Areas Of Fog | 1 mph S | 3% |
| Sunday | 83°F | Areas Of Fog then Sunny | 1 mph NNW | 0% |
| Sunday Night | 47°F | Mostly Clear | 1 mph WSW | 0% |
| Monday | 84°F | Sunny | 2 mph SW | 0% |
| Monday Night | 47°F | Mostly Clear | 3 mph WSW | 0% |
| Tuesday | 83°F | Sunny | 1 mph WSW | 0% |
| Tuesday Night | 46°F | Mostly Clear | 2 mph WSW | 1% |
| Wednesday | 79°F | Sunny | 3 mph SW | 1% |
| Wednesday Night | 46°F | Partly Cloudy | 2 mph WSW | 2% |
| Thursday | 84°F | Mostly Sunny | 1 mph W | 2% |
| Thursday Night | 48°F | Partly Cloudy | 1 mph SW | 1% |
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 Sep 19, 2026.