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

Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

Current conditions at

Casper, Natrona County International Airport (KCPR)

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

Clear

63°F

17°C

Humidity 55%
Wind Speed ESE 8 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 20 Jun 09:00 AM MDT
Extended Forecast for

Casper WY

  • Today

    Today: Scattered showers, mainly between 11am and noon, then isolated thunderstorms after noon. Some of the storms could be severe. Partly sunny, with a high near 87. Breezy, with a north northwest wind 5 to 10 mph becoming west 15 to 20 mph in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 50%.

    High: 87 °F

    Scattered
    Showers then
    Severe
    Thunderstorms
    and Breezy

  • Tonight

    Tonight: Isolated thunderstorms before 10pm, then isolated showers between 10pm and 1am. Some of the storms could be severe. Mostly cloudy, then gradually becoming mostly clear, with a low around 51. Breezy, with a north northwest wind 13 to 18 mph becoming east southeast 6 to 11 mph in the evening. Winds could gust as high as 25 mph. Chance of precipitation is 20%.

    Low: 51 °F

    Severe
    Thunderstorms
    and Breezy
    then Isolated
    Showers

  • Sunday

    Sunday: Scattered showers and thunderstorms, mainly between 10am and 4pm. Partly sunny, with a high near 77. Southwest wind 9 to 13 mph becoming north in the afternoon. Chance of precipitation is 50%.

    High: 77 °F

    Scattered
    Showers then
    Scattered
    T-storms

  • Sunday Night

    Sunday Night: A 10 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 48. Northeast wind 5 to 10 mph becoming light and variable after midnight.

    Low: 48 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 81. Light and variable wind becoming north 9 to 14 mph in the afternoon. Winds could gust as high as 24 mph.

    High: 81 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 48. Breezy, with a north northeast wind 15 to 20 mph becoming light after midnight. Winds could gust as high as 28 mph.

    Low: 48 °F

    Slight Chance
    T-storms and
    Breezy then
    Mostly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 79. Light north northeast wind becoming east northeast 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

Detailed Forecast

Today
Scattered showers, mainly between 11am and noon, then isolated thunderstorms after noon. Some of the storms could be severe. Partly sunny, with a high near 87. Breezy, with a north northwest wind 5 to 10 mph becoming west 15 to 20 mph in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 50%.
Tonight
Isolated thunderstorms before 10pm, then isolated showers between 10pm and 1am. Some of the storms could be severe. Mostly cloudy, then gradually becoming mostly clear, with a low around 51. Breezy, with a north northwest wind 13 to 18 mph becoming east southeast 6 to 11 mph in the evening. Winds could gust as high as 25 mph. Chance of precipitation is 20%.
Sunday
Scattered showers and thunderstorms, mainly between 10am and 4pm. Partly sunny, with a high near 77. Southwest wind 9 to 13 mph becoming north in the afternoon. Chance of precipitation is 50%.
Sunday Night
A 10 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 48. Northeast wind 5 to 10 mph becoming light and variable after midnight.
Monday
A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 81. Light and variable wind becoming north 9 to 14 mph in the afternoon. Winds could gust as high as 24 mph.
Monday Night
A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 48. Breezy, with a north northeast wind 15 to 20 mph becoming light after midnight. Winds could gust as high as 28 mph.
Tuesday
Sunny, with a high near 79. Light north northeast wind becoming east northeast 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 48.
Wednesday
Sunny, with a high near 84.
Wednesday Night
Partly cloudy, with a low around 51.
Thursday
Mostly sunny, with a high near 86.
Thursday Night
Partly cloudy, with a low around 52.
Friday
Sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
Casper WY
 42.83°N 106.34°W (Elev. 5236 ft)
Last Update:
8:02 am MDT Jun 20, 2026
Forecast Valid:
9am MDT Jun 20, 2026-6pm MDT Jun 26, 2026
 
Forecast Discussion
 
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Additional Resources

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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