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

Fire Weather Concerns and Severe Thunderstorms through the Weekend

Dry and windy conditions, and some dry thunderstorms and lightning, may support hazardous fire activity in the northern Plains, high southern Plains and the Southwest this weekend. An active severe weather pattern is forecast for portions of the central and southern High Plains into the Upper Midwest through early the part of next week. Damaging winds, large hail, and tornadoes are possible. Read More >

Current conditions at

Casper, Natrona County International Airport (KCPR)

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

Clear

77°F

25°C

Humidity 8%
Wind Speed W 16 MPH
Barometer 29.82 in (1009.82 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 15 May 04:20 PM MDT
Extended Forecast for

Casper WY

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 78. Breezy, with a west wind around 21 mph, with gusts as high as 33 mph.

    High: 78 °F

    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 42. Breezy, with a west northwest wind 13 to 18 mph becoming light and variable after midnight. Winds could gust as high as 30 mph.

    Low: 42 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Saturday

    Saturday: Scattered showers between 4pm and 5pm. Increasing clouds, with a high near 79. Light and variable wind becoming west 9 to 14 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 30%.

    High: 79 °F

    Sunny then
    Scattered
    Showers

  • Saturday Night

    Saturday Night: Scattered showers, mainly between 7pm and 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 45. Breezy, with a west wind 8 to 15 mph becoming south in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 30%.

    Low: 45 °F

    Scattered
    Showers and
    Breezy

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 61. West northwest wind 7 to 14 mph becoming north northeast in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 40%.

    High: 61 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Snow showers, possibly mixed with rain. Some thunder is also possible. Low around 30. Blustery, with a north northeast wind 15 to 24 mph, with gusts as high as 32 mph. Chance of precipitation is 100%.

    Low: 30 °F

    Rain/Snow and
    Blustery

  • Monday

    Monday: Snow showers, possibly mixed with rain. Some thunder is also possible. High near 40. Breezy, with a north northeast wind 19 to 24 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 90%.

    High: 40 °F

    Rain/Snow and
    Breezy

  • Monday Night

    Monday Night: A 50 percent chance of snow showers. Mostly cloudy, with a low around 25.

    Low: 25 °F

    Chance Snow
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 50.

    High: 50 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 78. Breezy, with a west wind around 21 mph, with gusts as high as 33 mph.
Tonight
Mostly clear, with a low around 42. Breezy, with a west northwest wind 13 to 18 mph becoming light and variable after midnight. Winds could gust as high as 30 mph.
Saturday
Scattered showers between 4pm and 5pm. Increasing clouds, with a high near 79. Light and variable wind becoming west 9 to 14 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 30%.
Saturday Night
Scattered showers, mainly between 7pm and 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 45. Breezy, with a west wind 8 to 15 mph becoming south in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 30%.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 61. West northwest wind 7 to 14 mph becoming north northeast in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 40%.
Sunday Night
Snow showers, possibly mixed with rain. Some thunder is also possible. Low around 30. Blustery, with a north northeast wind 15 to 24 mph, with gusts as high as 32 mph. Chance of precipitation is 100%.
Monday
Snow showers, possibly mixed with rain. Some thunder is also possible. High near 40. Breezy, with a north northeast wind 19 to 24 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 90%.
Monday Night
A 50 percent chance of snow showers. Mostly cloudy, with a low around 25.
Tuesday
Partly sunny, with a high near 50.
Tuesday Night
Partly cloudy, with a low around 29.
Wednesday
Mostly sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 37.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
Casper WY
 42.85°N 106.34°W (Elev. 5154 ft)
Last Update:
3:18 pm MDT May 15, 2026
Forecast Valid:
4pm MDT May 15, 2026-6pm MDT May 21, 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