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

50°F

10°C

Humidity 57%
Wind Speed SSE 4 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Wind Chill49°F (9°C)
Last update 12 Apr 01:15 PM MDT
Extended Forecast for

Mammoth Hot Springs WY

  • This Afternoon

    This Afternoon: Scattered showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then scattered showers and thunderstorms after 3pm. Partly sunny, with a steady temperature around 54. Breezy, with a south southwest wind 13 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 54 °F

    Showers
    Likely and
    Breezy

  • Tonight

    Tonight: Scattered rain showers, possibly mixing with snow after 8pm, then gradually ending. Snow level 8000 feet lowering to 5700 feet after midnight . Mostly cloudy, with a low around 34. Breezy, with a south southeast wind 10 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 34 °F

    Scattered
    Rain/Snow and
    Breezy then
    Mostly Cloudy

  • Monday

    Monday: Scattered snow showers before 1pm, then rain and snow showers likely. Some thunder is also possible. Mostly cloudy, with a high near 47. Breezy, with a south southeast wind 10 to 16 mph becoming southwest in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 47 °F

    Scattered
    Snow Showers
    then
    Rain/Snow
    Likely and
    Breezy

  • Monday Night

    Monday Night: Scattered rain and snow showers before midnight. Snow level 6700 feet lowering to 5900 feet after midnight . Mostly cloudy, with a low around 34. South southwest wind 5 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 34 °F

    Scattered
    Rain/Snow
    then Partly
    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: Mostly cloudy, with a low around 36. South southwest wind 10 to 14 mph, with gusts as high as 30 mph.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain and snow showers before noon, then rain showers likely. Some thunder is also possible. Snow level 5900 feet rising to 7000 feet in the afternoon. Mostly cloudy, with a high near 49. Breezy, with a south southwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 70%.

    High: 49 °F

    Breezy.
    Chance
    Rain/Snow
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Rain showers before 9pm, then rain and snow showers. Some thunder is also possible. Snow level 7100 feet lowering to 6000 feet after midnight . Low around 34. Breezy. Chance of precipitation is 100%.

    Low: 34 °F

    Rain/Snow and
    Breezy

  • Thursday

    Thursday: Snow showers. Some thunder is also possible. High near 41. Breezy. Chance of precipitation is 90%.

    High: 41 °F

    Snow Showers
    and Breezy

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then scattered showers and thunderstorms after 3pm. Partly sunny, with a steady temperature around 54. Breezy, with a south southwest wind 13 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Scattered rain showers, possibly mixing with snow after 8pm, then gradually ending. Snow level 8000 feet lowering to 5700 feet after midnight . Mostly cloudy, with a low around 34. Breezy, with a south southeast wind 10 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Monday
Scattered snow showers before 1pm, then rain and snow showers likely. Some thunder is also possible. Mostly cloudy, with a high near 47. Breezy, with a south southeast wind 10 to 16 mph becoming southwest in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Monday Night
Scattered rain and snow showers before midnight. Snow level 6700 feet lowering to 5900 feet after midnight . Mostly cloudy, with a low around 34. South southwest wind 5 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Tuesday
Mostly sunny, with a high near 52. Southwest wind 5 to 14 mph, with gusts as high as 21 mph.
Tuesday Night
Mostly cloudy, with a low around 36. South southwest wind 10 to 14 mph, with gusts as high as 30 mph.
Wednesday
A chance of rain and snow showers before noon, then rain showers likely. Some thunder is also possible. Snow level 5900 feet rising to 7000 feet in the afternoon. Mostly cloudy, with a high near 49. Breezy, with a south southwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 70%.
Wednesday Night
Rain showers before 9pm, then rain and snow showers. Some thunder is also possible. Snow level 7100 feet lowering to 6000 feet after midnight . Low around 34. Breezy. Chance of precipitation is 100%.
Thursday
Snow showers. Some thunder is also possible. High near 41. Breezy. Chance of precipitation is 90%.
Thursday Night
A 50 percent chance of snow showers. Mostly cloudy, with a low around 22.
Friday
A chance of snow showers. Partly sunny, with a high near 41.
Friday Night
Partly cloudy, with a low around 19.
Saturday
A slight chance of snow showers. Mostly sunny, with a high near 49.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth Hot Springs WY
 44.98°N 110.69°W (Elev. 5745 ft)
Last Update:
12:20 pm MDT Apr 12, 2026
Forecast Valid:
1pm MDT Apr 12, 2026-6pm MDT Apr 18, 2026
 
Forecast Discussion
 
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Additional Resources

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