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

Extreme Heat Lingers; Severe Thunderstorms for Portions of the Plains and Southeast; Heavy Rainfall Threats

Gusty winds and heavy rainfall may impact the Big Island of Hawaii as a nearby tropical system passes west of the islands. From the Southwest U.S., Rockies and across the Gulf Coast, heavy rainfall could lead to isolated flash flooding. Severe thunderstorms are expected for areas of the Plains, Gulf Coast and Southeast through Tuesday. Extreme heat lingers for the southern Plains and Southwest. Read More >

Current conditions at

Casper, Natrona County International Airport (KCPR)

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

Clear

78°F

26°C

Humidity 34%
Wind Speed S 12 MPH
Barometer 30.21 in (1023.03 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 24 Aug 09:53 AM MDT
Extended Forecast for

Casper WY

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Some of the storms could be severe. Mostly sunny, with a high near 90. Breezy, with a west wind 9 to 17 mph becoming north northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 90 °F

    Mostly Sunny
    then Severe
    Thunderstorms
    and Breezy

  • Tonight

    Tonight: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Some of the storms could be severe. Mostly cloudy, with a low around 57. North northeast wind 6 to 14 mph becoming south southwest in the evening. Chance of precipitation is 50%.

    Low: 57 °F

    Severe
    Thunderstorms
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: Sunny, with a high near 83. Southwest wind 6 to 10 mph becoming north northeast in the afternoon.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 54. North wind 6 to 11 mph becoming light and variable after midnight.

    Low: 54 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 86. Calm wind becoming north 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 5 to 8 mph becoming calm after midnight.

    Low: 56 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 90. Light and variable wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 90 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 58.

    Low: 58 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Some of the storms could be severe. Mostly sunny, with a high near 90. Breezy, with a west wind 9 to 17 mph becoming north northwest in the afternoon. Winds could gust as high as 25 mph.
Tonight
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Some of the storms could be severe. Mostly cloudy, with a low around 57. North northeast wind 6 to 14 mph becoming south southwest in the evening. Chance of precipitation is 50%.
Tuesday
Sunny, with a high near 83. Southwest wind 6 to 10 mph becoming north northeast in the afternoon.
Tuesday Night
Partly cloudy, with a low around 54. North wind 6 to 11 mph becoming light and variable after midnight.
Wednesday
Mostly sunny, with a high near 86. Calm wind becoming north 5 to 7 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 56. East wind 5 to 8 mph becoming calm after midnight.
Thursday
Mostly sunny, with a high near 90. Light and variable wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 90.
Friday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 58.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. Breezy.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 57. Breezy.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 86. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Casper WY
 42.83°N 106.37°W (Elev. 5154 ft)
Last Update:
9:47 am MDT Aug 24, 2026
Forecast Valid:
10am MDT Aug 24, 2026-6pm MDT Aug 30, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation