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

35°F

2°C

Humidity 58%
Wind Speed S 7 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility NA
Wind Chill29°F (-2°C)
Last update 13 Apr 08:15 AM MDT
Extended Forecast for

Mammoth WY

  • Today

    Today: Rain likely, possibly mixed with snow showers, mainly after 4pm. Some thunder is also possible. Snow level rising to 6400 feet in the afternoon. Mostly cloudy, with a high near 49. Breezy, with a south southwest wind 14 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 49 °F

    Breezy.
    Slight Chance
    Snow Showers
    then
    Rain/Snow
    Likely

  • Tonight

    Tonight: A 30 percent chance of showers, mainly before 7pm. Snow level 6500 feet lowering to 5900 feet after midnight . Mostly cloudy, with a low around 33. South wind 5 to 14 mph, with gusts as high as 21 mph.

    Low: 33 °F

    Chance
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 52. Southwest wind 5 to 14 mph, with gusts as high as 21 mph.

    High: 52 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 34. South southwest wind 9 to 14 mph, with gusts as high as 21 mph.

    Low: 34 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of rain and snow showers before noon, then rain showers likely. Snow level 5700 feet rising to 7100 feet in the afternoon. Mostly cloudy, with a high near 50. Breezy, with a south southwest wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 50 °F

    Breezy.
    Chance
    Rain/Snow
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Rain showers likely before midnight, then rain, possibly mixed with snow showers. Some thunder is also possible. Low around 35. Breezy, with a south southwest wind 13 to 18 mph, with gusts as high as 37 mph. Chance of precipitation is 90%.

    Low: 35 °F

    Breezy.
    Showers
    Likely then
    Rain/Snow

  • Thursday

    Thursday: Snow showers, possibly mixed with rain, becoming all snow after noon. Some thunder is also possible. High near 41. West southwest wind 11 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 100%.

    High: 41 °F

    Rain/Snow
    then Snow
    Showers

  • Thursday Night

    Thursday Night: Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 21. Chance of precipitation is 70%.

    Low: 21 °F

    Snow Showers
    Likely then
    Chance Snow
    Showers

  • Friday

    Friday: A 30 percent chance of snow showers. Partly sunny, with a high near 40.

    High: 40 °F

    Chance Snow
    Showers

Detailed Forecast

Today
Rain likely, possibly mixed with snow showers, mainly after 4pm. Some thunder is also possible. Snow level rising to 6400 feet in the afternoon. Mostly cloudy, with a high near 49. Breezy, with a south southwest wind 14 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Tonight
A 30 percent chance of showers, mainly before 7pm. Snow level 6500 feet lowering to 5900 feet after midnight . Mostly cloudy, with a low around 33. South wind 5 to 14 mph, with gusts as high as 21 mph.
Tuesday
Mostly sunny, with a high near 52. Southwest wind 5 to 14 mph, with gusts as high as 21 mph.
Tuesday Night
Partly cloudy, with a low around 34. South southwest wind 9 to 14 mph, with gusts as high as 21 mph.
Wednesday
A chance of rain and snow showers before noon, then rain showers likely. Snow level 5700 feet rising to 7100 feet in the afternoon. Mostly cloudy, with a high near 50. Breezy, with a south southwest wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Wednesday Night
Rain showers likely before midnight, then rain, possibly mixed with snow showers. Some thunder is also possible. Low around 35. Breezy, with a south southwest wind 13 to 18 mph, with gusts as high as 37 mph. Chance of precipitation is 90%.
Thursday
Snow showers, possibly mixed with rain, becoming all snow after noon. Some thunder is also possible. High near 41. West southwest wind 11 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 100%.
Thursday Night
Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 21. Chance of precipitation is 70%.
Friday
A 30 percent chance of snow showers. Partly sunny, with a high near 40.
Friday Night
Partly cloudy, with a low around 20.
Saturday
Sunny, with a high near 48.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Mostly sunny, with a high near 56.
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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:
8:48 am MDT Apr 13, 2026
Forecast Valid:
9am MDT Apr 13, 2026-6pm MDT Apr 19, 2026
 
Forecast Discussion
 
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Additional Resources

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