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

Casper, Natrona County International Airport (KCPR)

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

Clear

42°F

6°C

Humidity 57%
Wind Speed ENE 8 MPH
Barometer 30.25 in (1024.38 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 05 Apr 10:53 PM MDT
Extended Forecast for

Bar Nunn WY

  • Tonight

    Tonight: Mostly cloudy, with a low around 30. North northeast wind 3 to 6 mph.

    Low: 30 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 62. Light east wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 20 mph.

    High: 62 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 31. Breezy, with an east wind 5 to 15 mph becoming south southwest after midnight. Winds could gust as high as 24 mph.

    Low: 31 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 70. Breezy, with a southwest wind 6 to 11 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 70 °F

    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 34. Breezy, with a west wind 10 to 20 mph becoming north after midnight. Winds could gust as high as 29 mph.

    Low: 34 °F

    Partly Cloudy
    and Breezy

  • Wednesday

    Wednesday: A slight chance of rain and snow showers after noon. Mostly sunny, with a high near 60. Breezy, with a north wind 10 to 20 mph becoming west in the morning. Winds could gust as high as 30 mph. Chance of precipitation is 20%.

    High: 60 °F

    Breezy.
    Mostly Sunny
    then Slight
    Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 29. North wind 8 to 13 mph becoming east northeast after midnight. Winds could gust as high as 20 mph.

    Low: 29 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 63.

    High: 63 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before midnight. Partly cloudy, with a low around 33.

    Low: 33 °F

    Slight Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 30. North northeast wind 3 to 6 mph.
Monday
Mostly sunny, with a high near 62. Light east wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 31. Breezy, with an east wind 5 to 15 mph becoming south southwest after midnight. Winds could gust as high as 24 mph.
Tuesday
Sunny, with a high near 70. Breezy, with a southwest wind 6 to 11 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Tuesday Night
Partly cloudy, with a low around 34. Breezy, with a west wind 10 to 20 mph becoming north after midnight. Winds could gust as high as 29 mph.
Wednesday
A slight chance of rain and snow showers after noon. Mostly sunny, with a high near 60. Breezy, with a north wind 10 to 20 mph becoming west in the morning. Winds could gust as high as 30 mph. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 29. North wind 8 to 13 mph becoming east northeast after midnight. Winds could gust as high as 20 mph.
Thursday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 63.
Thursday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 33.
Friday
A 30 percent chance of showers after noon. Partly sunny, with a high near 67.
Friday Night
A chance of showers. Mostly cloudy, with a low around 40.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 73. Breezy.
Saturday Night
A slight chance of showers. Mostly cloudy, with a low around 42.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 67. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Bar Nunn WY
 42.92°N 106.35°W (Elev. 5322 ft)
Last Update:
9:47 pm MDT Apr 5, 2026
Forecast Valid:
11pm MDT Apr 5, 2026-6pm MDT Apr 12, 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