Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Current conditions at

Casper, Natrona County International Airport (KCPR)

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

Mostly Cloudy

81°F

27°C

Humidity 30%
Wind Speed NNE 9 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 12 Aug 07:00 PM MDT
Extended Forecast for

4 Miles NNW Bar Nunn WY

  • Tonight

    Tonight: Scattered showers and thunderstorms.  Areas of smoke. Mostly cloudy, with a low around 57. Breezy, with a north wind 8 to 17 mph becoming east after midnight. Winds could gust as high as 24 mph.  Chance of precipitation is 30%.

    Low: 57 °F

    Scattered
    T-storms and
    Breezy then
    Scattered
    Showers

  • Thursday

    Thursday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3pm.  Patchy smoke before 4pm. High near 78. East wind 6 to 10 mph.  Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Showers

  • Thursday Night

    Thursday Night: Showers and thunderstorms before midnight, then scattered showers between midnight and 1am.  Low around 54. East wind 6 to 10 mph becoming northwest after midnight.  Chance of precipitation is 90%.

    Low: 54 °F

    Showers then
    Scattered
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 82. Breezy, with a west southwest wind 8 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 82 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 52. Northwest wind 6 to 11 mph becoming northeast in the evening. Winds could gust as high as 20 mph.

    Low: 52 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 79. West northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 79 °F

    Partly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 51. North northeast wind 7 to 10 mph.

    Low: 51 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

Detailed Forecast

Tonight
Scattered showers and thunderstorms. Areas of smoke. Mostly cloudy, with a low around 57. Breezy, with a north wind 8 to 17 mph becoming east after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 30%.
Thursday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3pm. Patchy smoke before 4pm. High near 78. East wind 6 to 10 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and thunderstorms before midnight, then scattered showers between midnight and 1am. Low around 54. East wind 6 to 10 mph becoming northwest after midnight. Chance of precipitation is 90%.
Friday
Mostly sunny, with a high near 82. Breezy, with a west southwest wind 8 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.
Friday Night
A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 52. Northwest wind 6 to 11 mph becoming northeast in the evening. Winds could gust as high as 20 mph.
Saturday
A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 79. West northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 51. North northeast wind 7 to 10 mph.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 51.
Monday
Mostly sunny, with a high near 84.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 53.
Tuesday
Mostly sunny, with a high near 85.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 54.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Bar Nunn WY
 42.98°N 106.38°W (Elev. 5400 ft)
6:32 pm MDT Aug 12, 2026
7pm MDT Aug 12, 2026-6pm MDT Aug 19, 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