Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

ST. REGIS (STGM8)

Lat: 47.30711°NLon: 115.10761°WElev: 2678.0ft.

NA

34°F

1°C

Humidity 100%
Wind Speed WNW 0 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 07 Dec 11:02 AM MST
Extended Forecast for

St. Regis MT

  • This Afternoon

    This Afternoon: Rain, mainly after 2pm.  High near 41. Light south southwest wind.  Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 41 °F

    Rain

  • Tonight

    Tonight: Rain.  Low around 36. West southwest wind 3 to 5 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Rain

  • Monday

    Monday: Rain.  High near 44. Calm wind becoming southwest around 6 mph in the afternoon.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 44 °F

    Rain

  • Monday Night

    Monday Night: Rain.  Low around 37. West southwest wind around 7 mph, with gusts as high as 25 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 37 °F

    Rain

  • Tuesday

    Tuesday: Rain.  High near 44. West southwest wind around 6 mph, with gusts as high as 21 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 44 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain.  Low around 33. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 33 °F

    Rain

  • Wednesday

    Wednesday: Rain.  High near 44. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 44 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely before 8pm, then rain and snow likely.  Mostly cloudy, with a low around 29.

    Low: 29 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: Rain likely, possibly mixed with snow.  Mostly cloudy, with a high near 39.

    High: 39 °F

    Rain/Snow
    Likely

Detailed Forecast

This Afternoon
Rain, mainly after 2pm. High near 41. Light south southwest wind. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain. Low around 36. West southwest wind 3 to 5 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain. High near 44. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
Rain. Low around 37. West southwest wind around 7 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Rain. High near 44. West southwest wind around 6 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Rain. Low around 33. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain. High near 44. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Rain likely before 8pm, then rain and snow likely. Mostly cloudy, with a low around 29.
Thursday
Rain likely, possibly mixed with snow. Mostly cloudy, with a high near 39.
Thursday Night
A chance of rain and snow. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 29.
Friday
A chance of rain and snow. Patchy fog. Otherwise, mostly cloudy, with a high near 42.
Friday Night
A chance of rain and snow. Patchy fog. Otherwise, mostly cloudy, with a low around 30.
Saturday
A chance of rain. Patchy fog. Otherwise, partly sunny, with a high near 46.
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ABOUT THIS FORECAST

 
Point Forecast:
St. Regis MT
 47.3°N 115.08°W (Elev. 2799 ft)
1:01 am MST Dec 7, 2025
12pm MST Dec 7, 2025-6pm MST Dec 13, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database