National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rain and Flooding Possible in the Southwest U.S, Ohio Valley, and Hawaii

Heavy rainfall is expected to continue through Thursday over New Mexico into far west Texas. Flash flooding and debris flows in wildfire burn areas will be possible. Heavy rain and flash flooding is also expected over the southern Appalachians and Ohio Valley. Tropical Depression 15-E, southeast of Hawaii, is expected to bring heavy rain beginning today to the Big Island and Maui. Read More >

Current conditions at

Casper, Natrona County International Airport (KCPR)

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

Clear

72°F

22°C

Humidity 26%
Wind Speed WNW 16 MPH
Barometer 30.14 in (1020.66 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 23 Sep 05:20 PM MDT
Extended Forecast for

Casper WY

  • Tonight

    Tonight: Partly cloudy, with a low around 48. West northwest wind 5 to 10 mph becoming light and variable after midnight.

    Low: 48 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 74. Light and variable wind becoming east 6 to 11 mph in the morning.

    High: 74 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 49. East wind 6 to 11 mph becoming light and variable after midnight.

    Low: 49 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 73. Light south wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 23 mph.

    High: 73 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 53. Breezy, with a southwest wind 10 to 16 mph, with gusts as high as 25 mph.

    Low: 53 °F

    Mostly Clear
    then Mostly
    Clear and
    Breezy

  • Saturday

    Saturday: Sunny, with a high near 78. Breezy, with a west southwest wind 11 to 15 mph, with gusts as high as 26 mph.

    High: 78 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 51. South southwest wind 7 to 9 mph.

    Low: 51 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 79. Breezy.

    High: 79 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 54.

    Low: 54 °F

    Slight Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 48. West northwest wind 5 to 10 mph becoming light and variable after midnight.
Thursday
Mostly sunny, with a high near 74. Light and variable wind becoming east 6 to 11 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 49. East wind 6 to 11 mph becoming light and variable after midnight.
Friday
Mostly sunny, with a high near 73. Light south wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 23 mph.
Friday Night
Mostly clear, with a low around 53. Breezy, with a southwest wind 10 to 16 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 78. Breezy, with a west southwest wind 11 to 15 mph, with gusts as high as 26 mph.
Saturday Night
Mostly clear, with a low around 51. South southwest wind 7 to 9 mph.
Sunday
Mostly sunny, with a high near 79. Breezy.
Sunday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 54.
Monday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 67. Chance of precipitation is 60%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 43.
Tuesday
A chance of showers. Mostly sunny, with a high near 61.
Tuesday Night
A slight chance of showers. Mostly clear, with a low around 41.
Wednesday
Sunny, with a high near 67.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Casper WY
 42.83°N 106.34°W (Elev. 5236 ft)
Last Update:
5:18 pm MDT Sep 23, 2026
Forecast Valid:
5pm MDT Sep 23, 2026-6pm MDT Sep 30, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database Weather Element Forecast

Chance of Precipitation