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
51°F
Mostly Cloudy
Mostly cloudy. High near 51, with temperatures falling to around 44 in the afternoon. Wind around 0 mph.
7-day forecast for St. Regis
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 51°F | Mostly Cloudy | 0 mph | 0% |
| Tonight | 27°F | Mostly Cloudy | 0 mph | 0% |
| Wednesday | 54°F | Mostly Sunny | 1 mph S | 0% |
| Wednesday Night | 27°F | Partly Cloudy | 1 mph SSW | 10% |
| Thursday | 46°F | Chance Light Rain | 2 mph SW | 26% |
| Thursday Night | 29°F | Mostly Cloudy | 2 mph SSW | 6% |
| Friday | 51°F | Partly Sunny then Slight Chance Light Rain | 3 mph SSW | 18% |
| Friday Night | 34°F | Slight Chance Light Rain | 2 to 6 mph SW | 18% |
| Saturday | 60°F | Partly Sunny | 2 mph SSW | 4% |
| Saturday Night | 36°F | Mostly Cloudy then Chance Light Rain | 1 to 5 mph S | 44% |
| Sunday | 58°F | Chance Light Rain | 5 to 8 mph SW | 44% |
| Sunday Night | 34°F | Slight Chance Light Rain | 1 to 6 mph WSW | 19% |
| Monday | 55°F | Mostly Cloudy then Slight Chance Light Rain | 1 mph SSE | 23% |
| Monday Night | 34°F | Slight Chance Light Rain | 2 mph SSW | 23% |
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 Nov 4, 2026.