Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

WINNETT HANDAR (GGWWT)

Lat: 47.01°NLon: 108.36°WElev: 2969.0ft.

NA

N/A

Humidity 23%
Wind Speed NW 11 MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update 11 Nov 01:34 PM MST
Extended Forecast for

16 Miles SSE Grass Range MT

Winter Weather Advisory December 8, 11:00pm until December 9, 02:00pm
High Wind Warning December 8, 11:00pm until December 9, 05:00pm
Click here for hazard details and duration
Winter Weather Advisory
High Wind Warning
  • Tonight

    Tonight: A 30 percent chance of rain, mainly before midnight.  Mostly cloudy, with a temperature rising to around 46 by 5am. Breezy, with a southwest wind 21 to 29 mph, with gusts as high as 44 mph.

    Low: 38 °F

    Chance Rain
    and Breezy

  • Tuesday

    Tuesday: A 40 percent chance of rain, mainly before noon.  Partly sunny, with a temperature falling to around 34 by 5pm. Windy, with a west northwest wind 29 to 34 mph decreasing to 23 to 28 mph in the afternoon. Winds could gust as high as 50 mph.

    High: 47 °F

    Chance Rain
    and Windy

  • Tuesday Night

    Tuesday Night: A slight chance of freezing rain between 11pm and 2am, then a slight chance of snow after 2am.  Increasing clouds, with a low around 25. West northwest wind 7 to 13 mph becoming south southwest after midnight.  Chance of precipitation is 20%.

    Low: 25 °F

    Slight Chance
    Freezing Rain
    then Slight
    Chance Wintry
    Mix

  • Wednesday

    Wednesday: Snow before 9am, then rain and snow between 9am and 11am, then a chance of rain after 11am.  High near 46. South wind 9 to 16 mph becoming west in the afternoon. Winds could gust as high as 26 mph.  Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 46 °F

    Rain/Snow
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: Rain likely before 2am, then rain likely, possibly mixed with snow.  Cloudy, with a low around 28. Northwest wind 14 to 16 mph, with gusts as high as 25 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Thursday

    Thursday: Rain and snow likely, becoming all snow after 2pm.  Cloudy, with a high near 37. West wind around 15 mph, with gusts as high as 23 mph.  Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    High: 37 °F

    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: Snow likely, mainly before 11pm.  Cloudy, with a low around -1. North northeast wind 9 to 14 mph, with gusts as high as 21 mph.  Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    Low: -1 °F

    Snow Likely

  • Friday

    Friday: Snow likely.  Cloudy, with a high near 11. South southeast wind around 8 mph.  Chance of precipitation is 60%.

    High: 11 °F

    Snow Likely

  • Friday Night

    Friday Night: A 40 percent chance of snow.  Cloudy, with a low around 2. South southeast wind 7 to 9 mph becoming west northwest after midnight.

    Low: 2 °F

    Chance Snow

Detailed Forecast

Tonight
A 30 percent chance of rain, mainly before midnight. Mostly cloudy, with a temperature rising to around 46 by 5am. Breezy, with a southwest wind 21 to 29 mph, with gusts as high as 44 mph.
Tuesday
A 40 percent chance of rain, mainly before noon. Partly sunny, with a temperature falling to around 34 by 5pm. Windy, with a west northwest wind 29 to 34 mph decreasing to 23 to 28 mph in the afternoon. Winds could gust as high as 50 mph.
Tuesday Night
A slight chance of freezing rain between 11pm and 2am, then a slight chance of snow after 2am. Increasing clouds, with a low around 25. West northwest wind 7 to 13 mph becoming south southwest after midnight. Chance of precipitation is 20%.
Wednesday
Snow before 9am, then rain and snow between 9am and 11am, then a chance of rain after 11am. High near 46. South wind 9 to 16 mph becoming west in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Wednesday Night
Rain likely before 2am, then rain likely, possibly mixed with snow. Cloudy, with a low around 28. Northwest wind 14 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday
Rain and snow likely, becoming all snow after 2pm. Cloudy, with a high near 37. West wind around 15 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Thursday Night
Snow likely, mainly before 11pm. Cloudy, with a low around -1. North northeast wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Friday
Snow likely. Cloudy, with a high near 11. South southeast wind around 8 mph. Chance of precipitation is 60%.
Friday Night
A 40 percent chance of snow. Cloudy, with a low around 2. South southeast wind 7 to 9 mph becoming west northwest after midnight.
Saturday
A 20 percent chance of snow before 11am. Mostly cloudy, with a high near 15. North wind around 9 mph.
Saturday Night
Mostly cloudy, with a low around 5. South southwest wind 8 to 10 mph.
Sunday
Partly sunny, with a high near 39.
Sunday Night
Mostly cloudy, with a low around 19.
Monday
Partly sunny, with a high near 36.
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles SSE Grass Range MT
 46.83°N 108.61°W (Elev. 3976 ft)
4:31 pm MST Dec 8, 2025
10pm MST Dec 8, 2025-6pm MST Dec 15, 2025
 
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Additional Resources

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