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

USCRN SITE NEAR LEWISTOWN 42WSW (JRWM8)

Lat: 46.88472°NLon: 110.28944°WElev: 5045.0ft.

NA

53°F

12°C

Humidity 56%
Wind Speed NA 3 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Last update 19 Aug 07:00 AM MDT
Extended Forecast for

5 Miles SW Windham MT

  • Today

    Today: Patchy smoke between 10am and 3pm. Partly sunny, then gradually becoming sunny, with a high near 82. West northwest wind 10 to 14 mph, with gusts as high as 23 mph.

    High: 82 °F

    Patchy Smoke

  • Tonight

    Tonight: Patchy smoke between 1am and 2am. Mostly clear, with a low around 54. Northwest wind 5 to 11 mph becoming southwest after midnight.

    Low: 54 °F

    Patchy Smoke

  • Thursday

    Thursday: Sunny, with a high near 87. Southwest wind 6 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56. North northwest wind 5 to 8 mph becoming southwest after midnight.

    Low: 56 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 83. Light and variable wind becoming northeast 5 to 8 mph in the afternoon.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 58. East northeast wind 7 to 10 mph becoming south after midnight.

    Low: 58 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 85. South wind 8 to 11 mph, with gusts as high as 23 mph.

    High: 85 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers before midnight.  Mostly cloudy, with a low around 57. Southwest wind 10 to 13 mph, with gusts as high as 21 mph.

    Low: 57 °F

    Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Patchy smoke between 10am and 3pm. Partly sunny, then gradually becoming sunny, with a high near 82. West northwest wind 10 to 14 mph, with gusts as high as 23 mph.
Tonight
Patchy smoke between 1am and 2am. Mostly clear, with a low around 54. Northwest wind 5 to 11 mph becoming southwest after midnight.
Thursday
Sunny, with a high near 87. Southwest wind 6 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.
Thursday Night
Mostly clear, with a low around 56. North northwest wind 5 to 8 mph becoming southwest after midnight.
Friday
Sunny, with a high near 83. Light and variable wind becoming northeast 5 to 8 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 58. East northeast wind 7 to 10 mph becoming south after midnight.
Saturday
A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 85. South wind 8 to 11 mph, with gusts as high as 23 mph.
Saturday Night
A chance of showers before midnight. Mostly cloudy, with a low around 57. Southwest wind 10 to 13 mph, with gusts as high as 21 mph.
Sunday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 52.
Monday
Sunny, with a high near 81.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Windham MT
 47.03°N 110.23°W (Elev. 4941 ft)
4:16 am MDT Aug 19, 2026
7am MDT Aug 19, 2026-6pm MDT Aug 25, 2026
 
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Additional Resources

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