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

Casper, Natrona County International Airport (KCPR)

Lat: 42.9°NLon: 106.47°WElev: 5348ft.

A Few Clouds

74°F

23°C

Humidity 37%
Wind Speed N 12 G 20 mph
Barometer 29.99 in (1009.9 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 21 Jun 1:53 pm MDT
Extended Forecast for

13 Miles SSW Shirley Basin WY

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 69. Northwest wind around 15 mph, with gusts as high as 25 mph.

    High: 69 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 44. North northwest wind 10 to 15 mph becoming southeast after midnight.

    Low: 44 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 78. Breezy, with a south southwest wind 5 to 10 mph becoming west 15 to 20 mph in the morning. Winds could gust as high as 30 mph.

    High: 78 °F

    Sunny then
    Slight Chance
    T-storms and
    Breezy

  • Monday Night

    Monday Night: A 20 percent chance of showers before 9pm. Partly cloudy, with a low around 45. West northwest wind 5 to 15 mph becoming north in the evening. Winds could gust as high as 25 mph.

    Low: 45 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 75. Light and variable wind becoming northwest 5 to 10 mph in the afternoon.

    High: 75 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 46. Chance of precipitation is 20%.

    Low: 46 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 46.

    Low: 46 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 79.

    High: 79 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 69. Northwest wind around 15 mph, with gusts as high as 25 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 44. North northwest wind 10 to 15 mph becoming southeast after midnight.
Monday
A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 78. Breezy, with a south southwest wind 5 to 10 mph becoming west 15 to 20 mph in the morning. Winds could gust as high as 30 mph.
Monday Night
A 20 percent chance of showers before 9pm. Partly cloudy, with a low around 45. West northwest wind 5 to 15 mph becoming north in the evening. Winds could gust as high as 25 mph.
Tuesday
Mostly sunny, with a high near 75. Light and variable wind becoming northwest 5 to 10 mph in the afternoon.
Tuesday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 46. Chance of precipitation is 20%.
Wednesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 76.
Wednesday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 46.
Thursday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 79.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Sunny, with a high near 82. Breezy.
Friday Night
Partly cloudy, with a low around 50. Breezy.
Saturday
Sunny, with a high near 78. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles SSW Shirley Basin WY
 42.16°N 106.26°W (Elev. 7188 ft)
Last Update:
12:31 pm MDT Jun 21, 2026
Forecast Valid:
2pm MDT Jun 21, 2026-6pm MDT Jun 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation