Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

ST. REGIS (STGM8)

Lat: 47.30711° N Lon: 115.10761° W Elev: 2678.0 ft.

NA

51°F

11°C

Humidity 91%
Wind Speed NNE 0 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Last update 19 Sep 04:02 AM MDT
Detailed forecast for

Lower Clark Fork Region

Today
Mostly cloudy early in the morning then clearing. A 20 percent chance of rain until late afternoon. Patchy fog early in the morning. Highs in the 70s.
Tonight
Mostly clear. Lows in the 40s to lower 50s.
Sunday
Mostly sunny. Patchy fog in the morning. Highs in the mid 70s to lower 80s.
Sunday Night
Clear. Lows in the mid 40s to lower 50s.
Monday
Sunny. Highs in the mid 70s to lower 80s.
Monday Night
Mostly clear. Lows in the mid 40s to lower 50s.
Tuesday
Mostly sunny. Highs in the mid 70s to lower 80s.
Tuesday Night
Mostly clear. Lows in the mid 40s to lower 50s.
Wednesday
Mostly sunny. Highs in the 70s to lower 80s.
Wednesday Night
Partly cloudy. Lows in the mid 40s to lower 50s.
Thursday
Partly cloudy. Highs in the 70s to lower 80s.
Thursday Night
Partly cloudy. Lows in the mid 40s to lower 50s.
Friday
Partly cloudy. Highs in the upper 60s to mid 70s.



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1222 AM MDT Sat Sep 19 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database