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Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

37°F

3°C

Humidity 89%
Wind Speed S 7 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Wind Chill32°F (0°C)
Last update 09 Feb 03:15 AM MST
Extended Forecast for

Mammoth WY

Winter Weather Advisory February 9, 04:13am until February 9, 05:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory February 9, 04:13am until February 9, 05:00pm

    NOW until 5:00pm Mon

    Winter Weather Advisory

  • Overnight

    Low: 35 °F

    Rain/Snow

  • Monday

    Monday: Rain and snow showers, becoming all snow after noon. Some thunder is also possible. Temperature falling to around 33 by 5pm. West northwest wind 8 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 40 °F⇓

    Rain/Snow
    then Snow
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of snow showers before 9pm. Mostly clear, with a low around 19. West southwest wind around 6 mph becoming south after midnight.

    Low: 19 °F

    Slight Chance
    Snow Showers
    then Mostly
    Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 39. Southeast wind 3 to 6 mph.

    High: 39 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 25. South southeast wind around 6 mph.

    Low: 25 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Rain likely, possibly mixed with snow showers, becoming all rain after 5pm. Snow level rising to 6400 feet in the afternoon. Mostly cloudy, with a high near 42. South southwest wind around 6 mph. Chance of precipitation is 60%.

    High: 42 °F

    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: A chance of rain showers before 8pm, then a chance of rain and snow showers between 8pm and 2am, then a slight chance of snow showers after 2am. Snow level 6400 feet lowering to 5700 feet after midnight . Mostly cloudy, with a low around 26. South southwest wind 3 to 5 mph. Chance of precipitation is 40%.

    Low: 26 °F

    Chance
    Rain/Snow

  • Thursday

    Thursday: A 20 percent chance of snow showers after 11am. Mostly sunny, with a high near 41.

    High: 41 °F

    Slight Chance
    Snow Showers

Detailed Forecast

Overnight
Rain and snow showers. Low around 35. South southwest wind around 13 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of less than a half inch possible.
Monday
Rain and snow showers, becoming all snow after noon. Some thunder is also possible. Temperature falling to around 33 by 5pm. West northwest wind 8 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday Night
A 20 percent chance of snow showers before 9pm. Mostly clear, with a low around 19. West southwest wind around 6 mph becoming south after midnight.
Tuesday
Partly sunny, with a high near 39. Southeast wind 3 to 6 mph.
Tuesday Night
Mostly cloudy, with a low around 25. South southeast wind around 6 mph.
Wednesday
Rain likely, possibly mixed with snow showers, becoming all rain after 5pm. Snow level rising to 6400 feet in the afternoon. Mostly cloudy, with a high near 42. South southwest wind around 6 mph. Chance of precipitation is 60%.
Wednesday Night
A chance of rain showers before 8pm, then a chance of rain and snow showers between 8pm and 2am, then a slight chance of snow showers after 2am. Snow level 6400 feet lowering to 5700 feet after midnight . Mostly cloudy, with a low around 26. South southwest wind 3 to 5 mph. Chance of precipitation is 40%.
Thursday
A 20 percent chance of snow showers after 11am. Mostly sunny, with a high near 41.
Thursday Night
Partly cloudy, with a low around 23.
Friday
Mostly sunny, with a high near 39.
Friday Night
Mostly cloudy, with a low around 22.
Saturday
A slight chance of snow showers. Mostly cloudy, with a high near 39.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 25.
Sunday
A chance of snow showers. Mostly cloudy, with a high near 39.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
Last Update:
3:48 am MST Feb 9, 2026
Forecast Valid:
4am MST Feb 9, 2026-6pm MST Feb 15, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation