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

52°F

11°C

Humidity 32%
Wind Speed W 9 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 09 Apr 08:35 AM MDT
Extended Forecast for

Bar Nunn WY

  • Today

    Today: Mostly sunny, with a high near 64. Breezy, with a north wind 9 to 18 mph becoming west in the morning. Winds could gust as high as 28 mph.

    High: 64 °F

    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Partly cloudy, with a low around 33. Breezy, with a north northeast wind 9 to 15 mph becoming east after midnight. Winds could gust as high as 23 mph.

    Low: 33 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Friday

    Friday: A 20 percent chance of showers after noon. Partly sunny, with a high near 70. East southeast wind 6 to 13 mph, with gusts as high as 21 mph.

    High: 70 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 43. Southeast wind 8 to 13 mph becoming south southwest after midnight. Winds could gust as high as 21 mph.

    Low: 43 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 74. Windy, with a southwest wind 9 to 14 mph increasing to 23 to 28 mph in the afternoon. Winds could gust as high as 38 mph.

    High: 74 °F

    Mostly Sunny
    and Breezy
    then Slight
    Chance
    Showers and
    Windy

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before midnight. Partly cloudy, with a low around 43. Breezy, with a southwest wind 17 to 24 mph, with gusts as high as 34 mph.

    Low: 43 °F

    Breezy.
    Slight Chance
    Showers then
    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 68. Windy, with a southwest wind 18 to 23 mph increasing to 25 to 30 mph in the morning. Winds could gust as high as 40 mph.

    High: 68 °F

    Mostly Sunny
    and Windy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 40. Breezy.

    Low: 40 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Monday

    Monday: Showers likely, mainly after noon. Mostly sunny, with a high near 60. Breezy. Chance of precipitation is 60%.

    High: 60 °F

    Breezy.
    Slight Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Today
Mostly sunny, with a high near 64. Breezy, with a north wind 9 to 18 mph becoming west in the morning. Winds could gust as high as 28 mph.
Tonight
Partly cloudy, with a low around 33. Breezy, with a north northeast wind 9 to 15 mph becoming east after midnight. Winds could gust as high as 23 mph.
Friday
A 20 percent chance of showers after noon. Partly sunny, with a high near 70. East southeast wind 6 to 13 mph, with gusts as high as 21 mph.
Friday Night
Mostly cloudy, with a low around 43. Southeast wind 8 to 13 mph becoming south southwest after midnight. Winds could gust as high as 21 mph.
Saturday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 74. Windy, with a southwest wind 9 to 14 mph increasing to 23 to 28 mph in the afternoon. Winds could gust as high as 38 mph.
Saturday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 43. Breezy, with a southwest wind 17 to 24 mph, with gusts as high as 34 mph.
Sunday
Mostly sunny, with a high near 68. Windy, with a southwest wind 18 to 23 mph increasing to 25 to 30 mph in the morning. Winds could gust as high as 40 mph.
Sunday Night
Mostly cloudy, with a low around 40. Breezy.
Monday
Showers likely, mainly after noon. Mostly sunny, with a high near 60. Breezy. Chance of precipitation is 60%.
Monday Night
Rain showers likely before 3am, then a chance of rain and snow showers. Some thunder is also possible. Mostly cloudy, with a low around 33. Breezy. Chance of precipitation is 60%.
Tuesday
Rain and snow showers likely. Some thunder is also possible. Mostly cloudy, with a high near 52.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 32.
Wednesday
Sunny, with a high near 61. 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:
8:48 am MDT Apr 9, 2026
Forecast Valid:
8am MDT Apr 9, 2026-6pm MDT Apr 15, 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