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

45°F

7°C

Humidity 74%
Wind Speed S 14 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Wind Chill39°F (4°C)
Last update 27 Jun 10:15 PM MDT
Extended Forecast for

2 Miles ESE Mammoth WY

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 3am, then showers likely.  Steady temperature around 43. South wind 9 to 11 mph, with gusts as high as 23 mph.  Chance of precipitation is 90%.

    Low: 43 °F

    Showers

  • Sunday

    Sunday: Showers, with thunderstorms also possible after noon.  Snow level 7900 feet rising to 8800 feet in the afternoon. High near 46. Breezy, with a southwest wind 11 to 20 mph, with gusts as high as 28 mph.  Chance of precipitation is 80%.

    High: 46 °F

    Showers then
    Scattered
    T-storms 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 34. South southwest wind 9 to 13 mph, with gusts as high as 25 mph.  Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 34 °F

    Scattered
    Showers then
    Rain/Snow

  • Monday

    Monday: Rain, possibly mixed with snow showers, becoming all rain after 3pm. Some thunder is also possible.  Snow level 7700 feet rising to 9000 feet in the afternoon. High near 45. Breezy, with a south southwest wind 11 to 15 mph, with gusts as high as 28 mph.  Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 45 °F

    Rain/Snow and
    Breezy

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 38. Southwest wind 5 to 11 mph, with gusts as high as 24 mph.  Chance of precipitation is 60%.

    Low: 38 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 56. Southwest wind 5 to 9 mph, with gusts as high as 22 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 38. South southeast wind 5 to 7 mph.

    Low: 38 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, with thunderstorms also possible after noon.  Mostly sunny, with a high near 62. Chance of precipitation is 20%.

    High: 62 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 10 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 41.

    Low: 41 °F

    Slight Chance
    T-storms then
    Mostly Clear

Detailed Forecast

Tonight
Showers and possibly a thunderstorm before 3am, then showers likely. Steady temperature around 43. South wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.
Sunday
Showers, with thunderstorms also possible after noon. Snow level 7900 feet rising to 8800 feet in the afternoon. High near 46. Breezy, with a southwest wind 11 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.
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 34. South southwest wind 9 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Monday
Rain, possibly mixed with snow showers, becoming all rain after 3pm. Some thunder is also possible. Snow level 7700 feet rising to 9000 feet in the afternoon. High near 45. Breezy, with a south southwest wind 11 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 38. Southwest wind 5 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Tuesday
A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 56. Southwest wind 5 to 9 mph, with gusts as high as 22 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 38. South southeast wind 5 to 7 mph.
Wednesday
A slight chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 62. Chance of precipitation is 20%.
Wednesday Night
A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 41.
Thursday
Mostly sunny, with a high near 68.
Thursday Night
Partly cloudy, with a low around 45.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 68. Breezy.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 43.
Independence Day
A slight chance of showers and thunderstorms. Sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Mammoth WY
 44.99°N 110.66°W (Elev. 7398 ft)
10:47 pm MDT Jun 27, 2026
11pm MDT Jun 27, 2026-6pm MDT Jul 4, 2026
 
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