National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

39°F

4°C

Humidity 55%
Wind Speed SSE 5 MPH
Barometer NA
Dewpoint 24°F (-4°C)
Visibility NA
Wind Chill35°F (2°C)
Last update 08 Feb 02:15 AM MST
Extended Forecast for

Mammoth WY

Winter Weather Advisory February 8, 05:00pm until February 9, 05:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 38. South wind around 9 mph.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain and snow showers before 2pm, then a chance of rain showers between 2pm and 5pm, then a slight chance of rain and snow showers after 5pm. Snow level 5800 feet rising to 6900 feet in the afternoon. Partly sunny, with a high near 45. Breezy, with a south wind 8 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 45 °F

    Slight Chance
    Showers then
    Chance
    Rain/Snow and
    Breezy

  • Sunday Night

    Sunday Night: Rain and snow showers. Snow level 7000 feet lowering to 6400 feet after midnight . Low around 35. Breezy, with a south wind 10 to 16 mph becoming west southwest after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 35 °F

    Breezy.
    Rain/Snow
    Likely then
    Rain/Snow

  • Monday

    Monday: Snow showers, possibly mixed with rain, becoming all snow after 7am. High near 40. West wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 40 °F

    Rain/Snow
    then Snow
    Showers
    Likely

  • Monday Night

    Monday Night: A 20 percent chance of snow showers before 11pm. Partly cloudy, with a low around 20. West wind around 6 mph becoming light and variable.

    Low: 20 °F

    Slight Chance
    Snow Showers
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 38. South southeast wind 3 to 5 mph.

    High: 38 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow showers after 11pm. Mostly cloudy, with a low around 23. Southeast wind around 6 mph.

    Low: 23 °F

    Slight Chance
    Snow Showers

  • Wednesday

    Wednesday: A 50 percent chance of snow showers. Mostly cloudy, with a high near 40.

    High: 40 °F

    Chance Snow
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow showers before 11pm. Mostly cloudy, with a low around 22.

    Low: 22 °F

    Slight Chance
    Snow Showers
    then Partly
    Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 38. South wind around 9 mph.
Sunday
A chance of rain and snow showers before 2pm, then a chance of rain showers between 2pm and 5pm, then a slight chance of rain and snow showers after 5pm. Snow level 5800 feet rising to 6900 feet in the afternoon. Partly sunny, with a high near 45. Breezy, with a south wind 8 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Sunday Night
Rain and snow showers. Snow level 7000 feet lowering to 6400 feet after midnight . Low around 35. Breezy, with a south wind 10 to 16 mph becoming west southwest after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Monday
Snow showers, possibly mixed with rain, becoming all snow after 7am. High near 40. West wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Monday Night
A 20 percent chance of snow showers before 11pm. Partly cloudy, with a low around 20. West wind around 6 mph becoming light and variable.
Tuesday
Partly sunny, with a high near 38. South southeast wind 3 to 5 mph.
Tuesday Night
A 20 percent chance of snow showers after 11pm. Mostly cloudy, with a low around 23. Southeast wind around 6 mph.
Wednesday
A 50 percent chance of snow showers. Mostly cloudy, with a high near 40.
Wednesday Night
A 20 percent chance of snow showers before 11pm. Mostly cloudy, with a low around 22.
Thursday
Mostly sunny, with a high near 39.
Thursday Night
Mostly cloudy, with a low around 22.
Friday
Partly sunny, with a high near 39.
Friday Night
A slight chance of snow showers. Mostly cloudy, with a low around 23.
Saturday
A chance of snow showers. Partly sunny, with a high near 37.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
Last Update:
2:17 am MST Feb 8, 2026
Forecast Valid:
2am MST Feb 8, 2026-6pm MST Feb 14, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation