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

WEST FORK (WSFM8)

Lat: 45.81556°NLon: 114.25833°WElev: 4420.0ft.

NA

35°F

2°C

Humidity 94%
Wind Speed SW 1 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 07 Dec 05:14 PM MST
Extended Forecast for

31 Miles W Darby MT

Flood Watch December 8, 05:00pm until December 11, 05:00am
Click here for hazard details and duration
Flood Watch
  • Tonight

    Tonight: Rain likely, mainly before 2am.  Cloudy, with a low around 38. South wind 9 to 11 mph, with gusts as high as 21 mph.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Rain Likely

  • Monday

    Monday: Rain.  High near 43. South southwest wind 7 to 9 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 43 °F

    Rain

  • Monday Night

    Monday Night: Rain.  Low around 40. Southwest wind 11 to 14 mph, with gusts as high as 24 mph.  Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    Low: 40 °F

    Rain

  • Tuesday

    Tuesday: Rain before 11am, then rain, possibly mixed with snow between 11am and 2pm, then rain after 2pm.  High near 43. West southwest wind 8 to 13 mph, with gusts as high as 22 mph.  Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 43 °F

    Rain/Snow

  • Tuesday Night

    Tuesday Night: Rain before 8pm, then rain, possibly mixed with snow between 8pm and 2am, then rain after 2am.  Low around 37. South southwest wind around 6 mph.  Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 37 °F

    Rain/Snow

  • Wednesday

    Wednesday: Rain.  High near 44. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    High: 44 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain, possibly mixed with snow.  Low around 34. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 34 °F

    Rain/Snow

  • Thursday

    Thursday: Rain and snow.  Mostly cloudy, with a high near 41.

    High: 41 °F

    Rain/Snow

  • Thursday Night

    Thursday Night: Rain and snow likely, mainly before 11pm.  Mostly cloudy, with a low around 33.

    Low: 33 °F

    Rain/Snow
    Likely

Detailed Forecast

Tonight
Rain likely, mainly before 2am. Cloudy, with a low around 38. South wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Rain. High near 43. South southwest wind 7 to 9 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
Rain. Low around 40. Southwest wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Tuesday
Rain before 11am, then rain, possibly mixed with snow between 11am and 2pm, then rain after 2pm. High near 43. West southwest wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Tuesday Night
Rain before 8pm, then rain, possibly mixed with snow between 8pm and 2am, then rain after 2am. Low around 37. South southwest wind around 6 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Wednesday
Rain. High near 44. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Wednesday Night
Rain, possibly mixed with snow. Low around 34. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Thursday
Rain and snow. Mostly cloudy, with a high near 41.
Thursday Night
Rain and snow likely, mainly before 11pm. Mostly cloudy, with a low around 33.
Friday
A chance of rain and snow before 2pm, then a chance of rain. Mostly cloudy, with a high near 44.
Friday Night
A slight chance of rain. Mostly cloudy, with a low around 32.
Saturday
A chance of rain and snow. Partly sunny, with a high near 47.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 33.
Sunday
A chance of rain and snow. Snow level 4400 feet rising to 5400 feet in the afternoon. Mostly cloudy, with a high near 44.
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ABOUT THIS FORECAST

 
Point Forecast:
31 Miles W Darby MT
 46°N 114.81°W (Elev. 3717 ft)
1:01 pm MST Dec 7, 2025
6pm MST Dec 7, 2025-6pm MST Dec 14, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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