Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

58°F

14°C

Humidity 63%
Wind Speed SW 5 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 19 Aug 12:15 AM MDT
Extended Forecast for

4 Miles NW Mount Holmes WY

  • Overnight

    Overnight: Mostly clear, with a low around 43. Light west northwest wind.

    Low: 43 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 66. Light west northwest wind becoming west southwest 6 to 11 mph in the morning.

    High: 66 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 46. West wind 6 to 11 mph becoming light and variable  in the evening.

    Low: 46 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 72. South southwest wind 5 to 10 mph becoming east southeast in the morning.

    High: 72 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 51. West wind 5 to 9 mph becoming light and variable  after midnight.

    Low: 51 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 74. Light and variable wind becoming west 5 to 8 mph in the morning.

    High: 74 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 53. North northwest wind 6 to 8 mph becoming south southeast after midnight.

    Low: 53 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after noon.  Mostly cloudy, with a high near 66. Chance of precipitation is 50%.

    High: 66 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 43. Light west northwest wind.
Wednesday
Sunny, with a high near 66. Light west northwest wind becoming west southwest 6 to 11 mph in the morning.
Wednesday Night
Mostly clear, with a low around 46. West wind 6 to 11 mph becoming light and variable in the evening.
Thursday
Sunny, with a high near 72. South southwest wind 5 to 10 mph becoming east southeast in the morning.
Thursday Night
Partly cloudy, with a low around 51. West wind 5 to 9 mph becoming light and variable after midnight.
Friday
Mostly sunny, with a high near 74. Light and variable wind becoming west 5 to 8 mph in the morning.
Friday Night
Mostly cloudy, with a low around 53. North northwest wind 6 to 8 mph becoming south southeast after midnight.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 66. Chance of precipitation is 50%.
Saturday Night
A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 48.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 63. Breezy. Chance of precipitation is 40%.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 46.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 63.
Monday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 46.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Mount Holmes WY
 44.86°N 110.91°W (Elev. 9199 ft)
12:31 am MDT Aug 19, 2026
12am MDT Aug 19, 2026-6pm MDT Aug 25, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database