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

Strong Storms and Heavy Rainfall Threats; Dangerous Heat for Southern Plains into the Southwest

Thunderstorms, some severe, will impact areas of the Plains into the Midwest today. Rainfall can be locally heavy as well from these storms with isolated instances of flash flooding. Monsoonal flow will enhance rainfall across the Four Corners into the central Rockies today. Meanwhile, summer heat continues for the southern Plains, Southwest into southern California. Read More >

Current conditions at

Casper, Natrona County International Airport (KCPR)

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

Clear

73°F

23°C

Humidity 38%
Wind Speed N 5 MPH
Barometer 30.33 in (1027.09 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 25 Aug 11:55 AM MDT
Extended Forecast for

Casper WY

  • This Afternoon

    This Afternoon: Sunny, with a high near 84. North northwest wind around 8 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 55. Northeast wind 5 to 10 mph becoming light and variable after midnight.

    Low: 55 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 86. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 86 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 56. East wind 8 to 13 mph becoming light and variable after midnight.

    Low: 56 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 91. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 91 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 60. South southwest wind 5 to 8 mph.

    Low: 60 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 92. Breezy, with a west southwest wind 8 to 15 mph, with gusts as high as 26 mph.

    High: 92 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: A 10 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 59.

    Low: 59 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 88. Breezy.

    High: 88 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

Detailed Forecast

This Afternoon
Sunny, with a high near 84. North northwest wind around 8 mph.
Tonight
Partly cloudy, with a low around 55. Northeast wind 5 to 10 mph becoming light and variable after midnight.
Wednesday
Mostly sunny, with a high near 86. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 56. East wind 8 to 13 mph becoming light and variable after midnight.
Thursday
Sunny, with a high near 91. Calm wind becoming west southwest around 6 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 60. South southwest wind 5 to 8 mph.
Friday
Mostly sunny, with a high near 92. Breezy, with a west southwest wind 8 to 15 mph, with gusts as high as 26 mph.
Friday Night
A 10 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 88. Breezy.
Saturday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 58. Breezy.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85. Breezy.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 54.
Monday
Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Casper WY
 42.85°N 106.31°W (Elev. 5151 ft)
Last Update:
11:47 am MDT Aug 25, 2026
Forecast Valid:
12pm MDT Aug 25, 2026-6pm MDT Aug 31, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation