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

Casper, Natrona County International Airport (KCPR)

Lat: 42.8975°NLon: 106.47306°WElev: 5348.0ft.

Partly Cloudy

72°F

22°C

Humidity 43%
Wind Speed SSW 5 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 18 Aug 08:00 PM MDT
Extended Forecast for

17 Miles NNE Shirley Basin WY

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before midnight. Some of the storms could be severe.  Cloudy during the early evening, then gradual clearing, with a low around 51. West wind 7 to 9 mph becoming north northwest in the evening.

    Low: 51 °F

    Severe
    Thunderstorms
    then Partly
    Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 71. West northwest wind 9 to 14 mph, with gusts as high as 20 mph.

    High: 71 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 54. Northwest wind 5 to 13 mph becoming southeast after midnight.

    Low: 54 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 76. South southwest wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 58. Light and variable wind becoming south 5 to 8 mph after midnight.

    Low: 58 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 78. South wind 6 to 9 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

    High: 78 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 61. East northeast wind around 10 mph becoming south southeast after midnight.

    Low: 61 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 60.

    Low: 60 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms before midnight. Some of the storms could be severe. Cloudy during the early evening, then gradual clearing, with a low around 51. West wind 7 to 9 mph becoming north northwest in the evening.
Wednesday
Sunny, with a high near 71. West northwest wind 9 to 14 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 54. Northwest wind 5 to 13 mph becoming southeast after midnight.
Thursday
Sunny, with a high near 76. South southwest wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Mostly clear, with a low around 58. Light and variable wind becoming south 5 to 8 mph after midnight.
Friday
Sunny, with a high near 78. South wind 6 to 9 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Partly cloudy, with a low around 61. East northeast wind around 10 mph becoming south southeast after midnight.
Saturday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 77.
Saturday Night
A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 60.
Sunday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 75.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 73.
Monday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles NNE Shirley Basin WY
 42.58°N 106.1°W (Elev. 8077 ft)
6:01 pm MDT Aug 18, 2026
8pm MDT Aug 18, 2026-6pm MDT Aug 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database