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

Thunderstorms Across the Central Plains and Mid South

Severe thunderstorms will be possible over parts of the Great Plains today through Wednesday which could bring large hail, damaging winds, and possible tornadoes. Slight Risks (level 2 of 5) of severe thunderstorms has been outlooked. Read More >

Current conditions at

Casper, Natrona County International Airport (KCPR)

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

Partly Cloudy

73°F

23°C

Humidity 20%
Wind Speed SW 8 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 01 Jun 06:05 PM MDT
Extended Forecast for

Bar Nunn WY

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 7pm and 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 45. Breezy, with a west southwest wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 10%.

    Low: 45 °F

    Slight Chance
    T-storms and
    Breezy then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 84. Light west wind becoming west southwest 9 to 14 mph in the morning. Winds could gust as high as 24 mph.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 46. Breezy, with a west wind 5 to 15 mph becoming east in the evening. Winds could gust as high as 23 mph.

    Low: 46 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Wednesday

    Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 84. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 84 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 49. North northwest wind 5 to 10 mph becoming east northeast in the evening.

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: A 10 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 86. Breezy, with a west southwest wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 86 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 49. Breezy, with a northwest wind 7 to 16 mph, with gusts as high as 25 mph.

    Low: 49 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Clear

  • Friday

    Friday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms between 7pm and 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 45. Breezy, with a west southwest wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 10%.
Tuesday
Sunny, with a high near 84. Light west wind becoming west southwest 9 to 14 mph in the morning. Winds could gust as high as 24 mph.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 46. Breezy, with a west wind 5 to 15 mph becoming east in the evening. Winds could gust as high as 23 mph.
Wednesday
Cloudy through mid morning, then gradual clearing, with a high near 84. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 49. North northwest wind 5 to 10 mph becoming east northeast in the evening.
Thursday
A 10 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 86. Breezy, with a west southwest wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 28 mph.
Thursday Night
Mostly clear, with a low around 49. Breezy, with a northwest wind 7 to 16 mph, with gusts as high as 25 mph.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 50.
Saturday
Sunny, with a high near 91.
Saturday Night
Mostly clear, with a low around 54.
Sunday
Mostly sunny, with a high near 88. Breezy.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 49. Breezy.
Monday
A slight chance of showers and thunderstorms. Sunny, with a high near 83.
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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:
6:01 pm MDT Jun 1, 2026
Forecast Valid:
6pm MDT Jun 1, 2026-6pm MDT Jun 8, 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