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

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

32°F

0°C

Humidity 64%
Wind Speed W 3 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility NA
Last update 10 Apr 03:15 AM MDT
Extended Forecast for

Mammoth WY

  • Overnight

    Overnight: Partly cloudy, with a low around 36. Light south southwest wind.

    Low: 36 °F

    Partly Cloudy

  • Friday

    Friday: Isolated showers and thunderstorms after 3pm. Snow level 6700 feet rising to 9900 feet in the afternoon. Increasing clouds, with a high near 67. Light and variable wind becoming south southwest 5 to 10 mph in the morning. Chance of precipitation is 20%.

    High: 67 °F

    Mostly Sunny
    then Isolated
    T-storms

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 41. South southeast wind 5 to 7 mph.

    Low: 41 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 63. Breezy, with a south southwest wind 7 to 16 mph, with gusts as high as 32 mph.

    High: 63 °F

    Mostly Sunny
    then Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 40. South southwest wind 6 to 14 mph, with gusts as high as 30 mph.

    Low: 40 °F

    Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 59. South southwest wind 6 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.

    High: 59 °F

    Mostly Sunny
    then Showers
    Likely

  • Sunday Night

    Sunday Night: Rain showers likely before 3am, then a chance of rain and snow showers. Mostly cloudy, with a low around 37. South wind 8 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.

    Low: 37 °F

    Showers
    Likely then
    Chance
    Rain/Snow

  • Monday

    Monday: Rain likely, possibly mixed with snow showers, mainly after noon. Some thunder is also possible. Snow level 6500 feet. Partly sunny, with a high near 49. Chance of precipitation is 70%.

    High: 49 °F

    Chance
    Rain/Snow
    then
    Rain/Snow
    Likely

  • Monday Night

    Monday Night: Rain showers likely before 3am, then a chance of rain and snow showers. Snow level 6900 feet lowering to 6300 feet after midnight . Mostly cloudy, with a low around 35. Chance of precipitation is 60%.

    Low: 35 °F

    Showers
    Likely then
    Chance
    Rain/Snow

Detailed Forecast

Overnight
Partly cloudy, with a low around 36. Light south southwest wind.
Friday
Isolated showers and thunderstorms after 3pm. Snow level 6700 feet rising to 9900 feet in the afternoon. Increasing clouds, with a high near 67. Light and variable wind becoming south southwest 5 to 10 mph in the morning. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, with a low around 41. South southeast wind 5 to 7 mph.
Saturday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 63. Breezy, with a south southwest wind 7 to 16 mph, with gusts as high as 32 mph.
Saturday Night
A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 40. South southwest wind 6 to 14 mph, with gusts as high as 30 mph.
Sunday
Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 59. South southwest wind 6 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.
Sunday Night
Rain showers likely before 3am, then a chance of rain and snow showers. Mostly cloudy, with a low around 37. South wind 8 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Monday
Rain likely, possibly mixed with snow showers, mainly after noon. Some thunder is also possible. Snow level 6500 feet. Partly sunny, with a high near 49. Chance of precipitation is 70%.
Monday Night
Rain showers likely before 3am, then a chance of rain and snow showers. Snow level 6900 feet lowering to 6300 feet after midnight . Mostly cloudy, with a low around 35. Chance of precipitation is 60%.
Tuesday
A chance of rain and snow showers before noon, then a chance of rain showers. Some thunder is also possible. Snow level 5900 feet rising to 6500 feet in the afternoon. Partly sunny, with a high near 51. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
A chance of rain and snow showers. Snow level rising to 6500 feet in the afternoon. Partly sunny, with a high near 50. Breezy.
Wednesday Night
Rain and snow showers likely. Mostly cloudy, with a low around 32.
Thursday
A chance of snow showers. Partly sunny, with a high near 46.
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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:
3:03 am MDT Apr 10, 2026
Forecast Valid:
3am MDT Apr 10, 2026-6pm MDT Apr 16, 2026
 
Forecast Discussion
 
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Additional Resources

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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