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

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

Lat: 44.977222°NLon: 110.695278°WElev: 6138.0ft.

NA

34°F

1°C

Humidity 74%
Wind Speed S 10 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Wind Chill26°F (-3°C)
Last update 08 Dec 08:15 PM MST
Extended Forecast for

Gardiner MT

Winter Storm Warning until December 10, 05:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning until December 10, 05:00pm

    NOW until 5:00pm Wed

    Winter Storm Warning

  • Tonight

    Low: 37 °F

    Rain/Snow
    Likely then
    Showers
    Likely

  • Tuesday

    Tuesday: Rain and snow showers before 2pm, then rain showers likely between 2pm and 4pm, then scattered rain and snow showers after 4pm.  Snow level 6900 feet lowering to 5600 feet in the afternoon . High near 46. South wind 9 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 46 °F

    Rain/Snow

  • Tuesday Night

    Tuesday Night: Snow showers before 2am, then rain and snow showers.  Low around 33. West wind 7 to 9 mph becoming south in the evening.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 33 °F

    Snow Showers
    then
    Rain/Snow

  • Wednesday

    Wednesday: Rain and snow showers, becoming all rain after 8am.  High near 49. Southwest wind 10 to 14 mph, with gusts as high as 20 mph.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 49 °F

    Rain/Snow
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers.  Mostly cloudy, with a low around 41. Southwest wind 11 to 14 mph, with gusts as high as 28 mph.

    Low: 41 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers likely, mainly after 11am.  Mostly cloudy, with a high near 48. Southwest wind around 11 mph, with gusts as high as 22 mph.  Chance of precipitation is 60%.

    High: 48 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of rain showers before 11pm, then a chance of rain and snow showers.  Mostly cloudy, with a low around 38. West southwest wind around 10 mph, with gusts as high as 21 mph.  Chance of precipitation is 50%.

    Low: 38 °F

    Chance
    Rain/Snow

  • Friday

    Friday: A chance of rain and snow showers before 11am, then a slight chance of rain showers.  Mostly cloudy, with a high near 48. Chance of precipitation is 40%.

    High: 48 °F

    Chance
    Rain/Snow
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
Rain and snow showers likely, becoming all rain after 10pm. Snow level 5900 feet rising to 6400 feet after midnight. Cloudy, with a low around 37. South southeast wind 11 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Tuesday
Rain and snow showers before 2pm, then rain showers likely between 2pm and 4pm, then scattered rain and snow showers after 4pm. Snow level 6900 feet lowering to 5600 feet in the afternoon . High near 46. South wind 9 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Tuesday Night
Snow showers before 2am, then rain and snow showers. Low around 33. West wind 7 to 9 mph becoming south in the evening. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday
Rain and snow showers, becoming all rain after 8am. High near 49. Southwest wind 10 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 41. Southwest wind 11 to 14 mph, with gusts as high as 28 mph.
Thursday
Showers likely, mainly after 11am. Mostly cloudy, with a high near 48. Southwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Thursday Night
A chance of rain showers before 11pm, then a chance of rain and snow showers. Mostly cloudy, with a low around 38. West southwest wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
Friday
A chance of rain and snow showers before 11am, then a slight chance of rain showers. Mostly cloudy, with a high near 48. Chance of precipitation is 40%.
Friday Night
Mostly cloudy, with a low around 35.
Saturday
Partly sunny, with a high near 48.
Saturday Night
Partly cloudy, with a low around 28.
Sunday
Partly sunny, with a high near 46.
Sunday Night
Mostly cloudy, with a low around 28.
Monday
Partly sunny, with a high near 45.
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ABOUT THIS FORECAST

 
Point Forecast:
Gardiner MT
 45.03°N 110.7°W (Elev. 5400 ft)
7:48 pm MST Dec 8, 2025
9pm MST Dec 8, 2025-6pm MST Dec 15, 2025
 
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Additional Resources

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