Extreme Fire Weather Concerns for the Western U.S.; Severe Weather and Flooding Threats for the Central U.S.

Extremely critical fire weather conditions are expected to develop across the Great Basin and Southwest today, and exceptionally dry and windy conditions will promote rapid wildfire spread through the weekend. Scattered severe thunderstorms and heavy rain are possible across parts of the Ozark Plateau into lower Ohio Valley and parts of the northern Rockies into adjacent Great Plains. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

48°F

9°C

Humidity 77%
Wind Speed S 3 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Last update 27 Jun 09:15 PM MDT
Extended Forecast for

Mammoth Hot Springs WY

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 36. Breezy, with a south southwest wind 10 to 16 mph, with gusts as high as 23 mph.  Chance of precipitation is 70%.

    Low: 36 °F

    Showers
    Likely and
    Breezy

  • Sunday

    Sunday: Rain and snow showers likely, becoming all rain after 3pm. Some thunder is also possible.  Snow level 8100 feet rising to 8800 feet in the afternoon. Mostly cloudy, with a high near 46. Breezy, with a southwest wind 16 to 20 mph, with gusts as high as 28 mph.  Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 46 °F

    Rain/Snow
    Likely and
    Breezy

  • Sunday Night

    Sunday Night: Rain and snow showers, mainly after 2am. Some thunder is also possible.  Snow level 8600 feet lowering to 7800 feet after midnight . Low around 32. South southwest wind 9 to 14 mph, with gusts as high as 28 mph.  Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 32 °F

    Scattered
    Rain/Snow
    then
    Rain/Snow

  • Monday

    Monday: Rain, possibly mixed with snow showers. Some thunder is also possible.  Snow level 7700 feet rising to 9000 feet in the afternoon. High near 44. Breezy, with a southwest wind 13 to 16 mph, with gusts as high as 34 mph.  Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 44 °F

    Rain/Snow and
    Breezy

  • Monday Night

    Monday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 35. West southwest wind 6 to 11 mph becoming light south southwest  after midnight. Winds could gust as high as 28 mph.  Chance of precipitation is 50%.

    Low: 35 °F

    Chance
    Showers then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 56. Light south southwest wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 23 mph.

    High: 56 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 36. South wind 7 to 9 mph.

    Low: 36 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 62. Breezy.

    High: 62 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms and
    Breezy

  • Wednesday Night

    Wednesday Night: A 10 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 38.

    Low: 38 °F

    Slight Chance
    T-storms then
    Mostly Clear

Detailed Forecast

Tonight
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 36. Breezy, with a south southwest wind 10 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.
Sunday
Rain and snow showers likely, becoming all rain after 3pm. Some thunder is also possible. Snow level 8100 feet rising to 8800 feet in the afternoon. Mostly cloudy, with a high near 46. Breezy, with a southwest wind 16 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Sunday Night
Rain and snow showers, mainly after 2am. Some thunder is also possible. Snow level 8600 feet lowering to 7800 feet after midnight . Low around 32. South southwest wind 9 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Monday
Rain, possibly mixed with snow showers. Some thunder is also possible. Snow level 7700 feet rising to 9000 feet in the afternoon. High near 44. Breezy, with a southwest wind 13 to 16 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 35. West southwest wind 6 to 11 mph becoming light south southwest after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 50%.
Tuesday
A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 56. Light south southwest wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 23 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 36. South wind 7 to 9 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 62. Breezy.
Wednesday Night
A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 38.
Thursday
Mostly sunny, with a high near 67. Breezy.
Thursday Night
Partly cloudy, with a low around 42.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 67. Breezy.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 40.
Independence Day
A slight chance of showers and thunderstorms. Sunny, with a high near 64. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth Hot Springs WY
 44.96°N 110.75°W (Elev. 7382 ft)
8:48 pm MDT Jun 27, 2026
9pm MDT Jun 27, 2026-6pm MDT Jul 4, 2026
 
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