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

34°F

1°C

Humidity 94%
Wind Speed WNW 2 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 23 Apr 05:15 AM MDT
Extended Forecast for

Mammoth WY

Winter Weather Advisory April 23, 05:53am until April 23, 11:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory April 23, 05:53am until April 23, 11:00pm

    NOW until 11:00pm Thu

    Winter Weather Advisory

  • Overnight

    Low: 35 °F

    Snow Showers

  • Thursday

    Thursday: Snow showers, mainly after 1pm. Some thunder is also possible. High near 45. West northwest wind 8 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 45 °F

    Snow Showers

  • Thursday Night

    Thursday Night: Snow showers before 1am, then a chance of snow showers after 3am. Low around 25. Northwest wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Snow Showers
    then Chance
    Snow Showers

  • Friday

    Friday: Snow showers likely. Some thunder is also possible. Partly sunny, with a high near 38. Light west northwest wind becoming northwest 5 to 9 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 38 °F

    Snow Showers
    Likely

  • Friday Night

    Friday Night: A 20 percent chance of snow showers before midnight. Partly cloudy, with a low around 18. Northwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 21 mph.

    Low: 18 °F

    Slight Chance
    Snow Showers
    then Partly
    Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow showers after noon. Mostly sunny, with a high near 46. Calm wind becoming west 5 to 8 mph in the morning.

    High: 46 °F

    Sunny then
    Slight Chance
    Snow Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of snow showers. Mostly cloudy, with a low around 24. West wind 5 to 8 mph becoming light and variable after midnight.

    Low: 24 °F

    Slight Chance
    Snow Showers

  • Sunday

    Sunday: A 50 percent chance of snow showers, mainly after noon. Mostly cloudy, with a high near 47.

    High: 47 °F

    Slight Chance
    Snow Showers
    then Chance
    Snow Showers

Detailed Forecast

Overnight
Snow showers. Low around 35. West wind around 8 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Thursday
Snow showers, mainly after 1pm. Some thunder is also possible. High near 45. West northwest wind 8 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Thursday Night
Snow showers before 1am, then a chance of snow showers after 3am. Low around 25. Northwest wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Friday
Snow showers likely. Some thunder is also possible. Partly sunny, with a high near 38. Light west northwest wind becoming northwest 5 to 9 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Friday Night
A 20 percent chance of snow showers before midnight. Partly cloudy, with a low around 18. Northwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 21 mph.
Saturday
A 20 percent chance of snow showers after noon. Mostly sunny, with a high near 46. Calm wind becoming west 5 to 8 mph in the morning.
Saturday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around 24. West wind 5 to 8 mph becoming light and variable after midnight.
Sunday
A 50 percent chance of snow showers, mainly after noon. Mostly cloudy, with a high near 47.
Sunday Night
A 50 percent chance of snow showers. Mostly cloudy, with a low around 29.
Monday
Snow showers likely before 3pm, then rain and snow showers likely. Some thunder is also possible. Partly sunny, with a high near 48. Chance of precipitation is 60%.
Monday Night
A slight chance of rain and snow showers. Snow level 5800 feet. Mostly cloudy, with a low around 29.
Tuesday
A chance of showers and thunderstorms. Snow level rising to 6500 feet in the afternoon. Partly sunny, with a high near 53.
Tuesday Night
A slight chance of showers. Snow level 6800 feet lowering to 6300 feet after midnight . Mostly cloudy, with a low around 31.
Wednesday
A chance of showers and thunderstorms. Snow level 6000 feet rising to 6900 feet in the afternoon. Mostly sunny, with a high near 57.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
Last Update:
4:48 am MDT Apr 23, 2026
Forecast Valid:
5am MDT Apr 23, 2026-6pm MDT Apr 29, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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