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.

Clear

57°F

14°C

Humidity 93%
Wind Speed S 3 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 14 Aug 01:35 AM MDT
Extended Forecast for

Bar Nunn WY

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 59. Calm wind.

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 83. Breezy, with a west southwest wind 5 to 10 mph increasing to 12 to 17 mph in the morning. Winds could gust as high as 26 mph.

    High: 83 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 54. Breezy, with a west southwest wind 5 to 15 mph becoming north northeast after midnight. Winds could gust as high as 22 mph.

    Low: 54 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly between 2pm and 5pm.  Cloudy through mid morning, then gradual clearing, with a high near 79. Light north wind becoming east northeast 5 to 9 mph in the morning.

    High: 79 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before midnight.  Mostly clear, with a low around 50. East northeast wind 5 to 9 mph becoming light and variable  after midnight.

    Low: 50 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 83. Light and variable wind becoming west northwest 5 to 8 mph in the morning.

    High: 83 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 52. Northwest wind 5 to 8 mph becoming light and variable  after midnight.

    Low: 52 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 59. Calm wind.
Friday
Partly sunny, with a high near 83. Breezy, with a west southwest wind 5 to 10 mph increasing to 12 to 17 mph in the morning. Winds could gust as high as 26 mph.
Friday Night
Partly cloudy, with a low around 54. Breezy, with a west southwest wind 5 to 15 mph becoming north northeast after midnight. Winds could gust as high as 22 mph.
Saturday
A 40 percent chance of showers and thunderstorms, mainly between 2pm and 5pm. Cloudy through mid morning, then gradual clearing, with a high near 79. Light north wind becoming east northeast 5 to 9 mph in the morning.
Saturday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 50. East northeast wind 5 to 9 mph becoming light and variable after midnight.
Sunday
Sunny, with a high near 83. Light and variable wind becoming west northwest 5 to 8 mph in the morning.
Sunday Night
Mostly clear, with a low around 52. Northwest wind 5 to 8 mph becoming light and variable after midnight.
Monday
Sunny, with a high near 87.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 86. Breezy.
Tuesday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 52.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 51.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Bar Nunn WY
 42.92°N 106.35°W (Elev. 5322 ft)
1:18 am MDT Aug 14, 2026
1am MDT Aug 14, 2026-6pm MDT Aug 20, 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