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 >

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

31°F

-1°C

Humidity 60%
Wind Speed S 5 MPH
Barometer NA
Dewpoint 19°F (-7°C)
Visibility NA
Wind Chill26°F (-3°C)
Last update 07 Dec 04:15 PM MST
Extended Forecast for

Gardiner MT

  • This Afternoon

    This Afternoon: Isolated snow showers after 5pm.  Mostly cloudy, with a steady temperature around 31. South wind around 10 mph.  Chance of precipitation is 10%.

    High: 31 °F

    Isolated Snow
    Showers

  • Tonight

    Tonight: Snow showers likely, mainly before 9pm.  Mostly cloudy, with a steady temperature around 33. East southeast wind around 11 mph.  Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 33 °F

    Snow Showers
    Likely then
    Isolated Snow
    Showers

  • Monday

    Monday: A 30 percent chance of snow showers, mainly after 5pm.  Mostly cloudy, with a high near 42. Southeast wind 8 to 13 mph becoming west in the morning. Winds could gust as high as 21 mph.

    High: 42 °F

    Mostly Cloudy
    then Chance
    Snow Showers

  • Monday Night

    Monday Night: A chance of rain and snow showers before 10pm, then rain showers likely.  Snow level 5500 feet rising to 6300 feet after midnight. Cloudy, with a low around 34. Breezy, with a south southwest wind around 16 mph, with gusts as high as 28 mph.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 34 °F

    Breezy.
    Rain/Snow
    Likely then
    Showers
    Likely

  • Tuesday

    Tuesday: Showers.  Snow level 6400 feet. High near 47. Southwest wind 11 to 14 mph, with gusts as high as 25 mph.  Chance of precipitation is 80%.

    High: 47 °F

    Showers

  • Tuesday Night

    Tuesday Night: Rain, possibly mixed with snow showers.  Snow level 5900 feet rising to 6600 feet after midnight. Low around 34. West southwest wind 9 to 11 mph.  Chance of precipitation is 80%.

    Low: 34 °F

    Rain/Snow

  • Wednesday

    Wednesday: Rain, possibly mixed with snow showers, becoming all rain after 11am.  High near 50. Breezy, with a west southwest wind 11 to 17 mph, with gusts as high as 31 mph.  Chance of precipitation is 90%.

    High: 50 °F

    Rain/Snow
    then Showers
    and Breezy

  • Wednesday Night

    Wednesday Night: Rain and snow showers likely.  Mostly cloudy, with a low around 37. Breezy.  Chance of precipitation is 70%.

    Low: 37 °F

    Rain/Snow
    Likely and
    Breezy

  • Thursday

    Thursday: Rain and snow showers likely, mainly before 11am.  Snow level 6500 feet. Mostly cloudy, with a high near 46. Chance of precipitation is 60%.

    High: 46 °F

    Rain/Snow
    Likely

Detailed Forecast

This Afternoon
Isolated snow showers after 5pm. Mostly cloudy, with a steady temperature around 31. South wind around 10 mph. Chance of precipitation is 10%.
Tonight
Snow showers likely, mainly before 9pm. Mostly cloudy, with a steady temperature around 33. East southeast wind around 11 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Monday
A 30 percent chance of snow showers, mainly after 5pm. Mostly cloudy, with a high near 42. Southeast wind 8 to 13 mph becoming west in the morning. Winds could gust as high as 21 mph.
Monday Night
A chance of rain and snow showers before 10pm, then rain showers likely. Snow level 5500 feet rising to 6300 feet after midnight. Cloudy, with a low around 34. Breezy, with a south southwest wind around 16 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Tuesday
Showers. Snow level 6400 feet. High near 47. Southwest wind 11 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Tuesday Night
Rain, possibly mixed with snow showers. Snow level 5900 feet rising to 6600 feet after midnight. Low around 34. West southwest wind 9 to 11 mph. Chance of precipitation is 80%.
Wednesday
Rain, possibly mixed with snow showers, becoming all rain after 11am. High near 50. Breezy, with a west southwest wind 11 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 90%.
Wednesday Night
Rain and snow showers likely. Mostly cloudy, with a low around 37. Breezy. Chance of precipitation is 70%.
Thursday
Rain and snow showers likely, mainly before 11am. Snow level 6500 feet. Mostly cloudy, with a high near 46. Chance of precipitation is 60%.
Thursday Night
A chance of rain and snow showers. Snow level 6200 feet. Mostly cloudy, with a low around 32. Chance of precipitation is 40%.
Friday
A chance of rain and snow showers. Snow level 6000 feet rising to 7000 feet in the afternoon. Mostly cloudy, with a high near 46.
Friday Night
Mostly cloudy, with a low around 33.
Saturday
Mostly sunny, with a high near 48.
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ABOUT THIS FORECAST

 
Point Forecast:
Gardiner MT
 45.03°N 110.7°W (Elev. 5400 ft)
3:48 pm MST Dec 7, 2025
4pm MST Dec 7, 2025-6pm MST Dec 13, 2025
 
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Additional Resources

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