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

37°F

3°C

Humidity 92%
Wind Speed WSW 1 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Last update 12 Apr 05:15 AM MDT
Extended Forecast for

Mammoth Hot Springs WY

  • Today

    Today: A chance of showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 58. South wind 6 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 58 °F

    Mostly Sunny
    then Showers
    Likely

  • Tonight

    Tonight: A chance of rain and snow showers before 10pm, then a slight chance of snow showers after 4am. Snow level 8000 feet lowering to 5700 feet after midnight . Mostly cloudy, with a low around 35. South wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 35 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow
    Showers

  • Monday

    Monday: A chance of snow showers before noon, then a chance of rain and snow showers between noon and 3pm, then a chance of rain showers after 3pm. Some thunder is also possible. Snow level rising to 6400 feet in the afternoon. Partly sunny, with a high near 51. Breezy, with a south southwest wind 10 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 51 °F

    Chance Snow
    Showers then
    Chance
    Rain/Snow and
    Breezy

  • Monday Night

    Monday Night: A 30 percent chance of showers before midnight. Snow level 6600 feet lowering to 5900 feet after midnight . Mostly cloudy, with a low around 34. South southwest wind 5 to 13 mph, with gusts as high as 20 mph.

    Low: 34 °F

    Chance
    Showers 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

Today
A chance of showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 58. South wind 6 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of rain and snow showers before 10pm, then a slight chance of snow showers after 4am. Snow level 8000 feet lowering to 5700 feet after midnight . Mostly cloudy, with a low around 35. South wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Monday
A chance of snow showers before noon, then a chance of rain and snow showers between noon and 3pm, then a chance of rain showers after 3pm. Some thunder is also possible. Snow level rising to 6400 feet in the afternoon. Partly sunny, with a high near 51. Breezy, with a south southwest wind 10 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Monday Night
A 30 percent chance of showers before midnight. Snow level 6600 feet lowering to 5900 feet after midnight . Mostly cloudy, with a low around 34. South southwest wind 5 to 13 mph, with gusts as high as 20 mph.
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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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth Hot Springs WY
 44.98°N 110.69°W (Elev. 5745 ft)
Last Update:
6:01 am MDT Apr 12, 2026
Forecast Valid:
6am MDT Apr 12, 2026-6pm MDT Apr 18, 2026
 
Forecast Discussion
 
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Additional Resources

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