Showers and Thunderstorms from the Great Lakes into the Southern Plains

Frontal boundary and wave of low pressure will keep an active weather pattern from the Great Lakes region through the southern Plains the next couple of days. Isolated instances of severe thunderstorms and flash flooding are possible. Meanwhile, as summer comes to a close, above normal temperatures continue for central and eastern U.S. - especially for most of Puerto Rico with excessive heat. Read More >

Hazardous Weather Conditions

Current conditions at

Casper, Natrona County International Airport (KCPR)

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

Partly Cloudy

77°F

25°C

Humidity 23%
Wind Speed SW 16 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 21 Sep 03:05 PM MDT
Extended Forecast for

Casper WYSimilar City Names

  • This Afternoon

    This Afternoon: Isolated showers and thunderstorms after 5pm.  Partly sunny, with a high near 78. Breezy, with a south southwest wind 13 to 22 mph, with gusts as high as 33 mph.  Chance of precipitation is 10%.

    High: 78 °F

    Isolated
    T-storms and
    Breezy

  • Tonight

    Tonight: Isolated showers and thunderstorms before 9pm.  Partly cloudy, with a low around 52. Breezy, with a south southwest wind 9 to 14 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 28 mph.  Chance of precipitation is 20%.

    Low: 52 °F

    Breezy.
    Isolated
    T-storms then
    Mostly Clear

  • Monday

    Monday: Showers and thunderstorms likely, mainly before 3pm, then showers likely and possibly a thunderstorm after 5pm.  Increasing clouds, with a high near 61. Breezy, with a southwest wind 15 to 20 mph becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 28 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 61 °F

    Breezy.
    Isolated
    Showers then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm.  Cloudy, with a low around 43. North wind 8 to 10 mph.  Chance of precipitation is 70%.

    Low: 43 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A 40 percent chance of showers, mainly before noon.  Partly sunny, with a high near 60. North northwest wind 3 to 8 mph.

    High: 60 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 41. Calm wind becoming south southwest around 5 mph after midnight.

    Low: 41 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 70. Southwest wind 5 to 7 mph.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

Detailed Forecast

This Afternoon
Isolated showers and thunderstorms after 5pm. Partly sunny, with a high near 78. Breezy, with a south southwest wind 13 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 10%.
Tonight
Isolated showers and thunderstorms before 9pm. Partly cloudy, with a low around 52. Breezy, with a south southwest wind 9 to 14 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 20%.
Monday
Showers and thunderstorms likely, mainly before 3pm, then showers likely and possibly a thunderstorm after 5pm. Increasing clouds, with a high near 61. Breezy, with a southwest wind 15 to 20 mph becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 28 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 43. North wind 8 to 10 mph. Chance of precipitation is 70%.
Tuesday
A 40 percent chance of showers, mainly before noon. Partly sunny, with a high near 60. North northwest wind 3 to 8 mph.
Tuesday Night
Mostly clear, with a low around 41. Calm wind becoming south southwest around 5 mph after midnight.
Wednesday
Sunny, with a high near 70. Southwest wind 5 to 7 mph.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 75.
Thursday Night
Mostly clear, with a low around 47.
Friday
Sunny, with a high near 78.
Friday Night
Mostly clear, with a low around 48.
Saturday
Sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
Casper WYSimilar City Names
 42.83°N 106.34°W (Elev. 5236 ft)
2:44 pm MDT Sep 21, 2025
3pm MDT Sep 21, 2025-6pm MDT Sep 27, 2025
 
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Additional Resources

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