Marine and Coastal Impacts from Imelda; Unsettled Weather in the West

Swells and high surf from both Imelda and Humberto are expected to bring dangerous marine conditions and rip currents to much of the East Coast over the next several days. A series of Pacific frontal systems will bring waves of showers and thunderstorms to portions of northern California and the Pacific Northwest through midweek. Read More >

Hazardous Weather Conditions

Current conditions at

Casper, Natrona County International Airport (KCPR)

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

Clear

72°F

22°C

Humidity 35%
Wind Speed SSW 9 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 29 Sep 05:53 PM MDT
Extended Forecast for

Bar Nunn WY

  • Tonight

    Tonight: Mostly clear, with a low around 54. South wind 8 to 11 mph.

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 77. Breezy, with a southwest wind 11 to 16 mph increasing to 19 to 24 mph in the morning. Winds could gust as high as 37 mph.

    High: 77 °F

    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 50. Breezy, with a southwest wind 14 to 17 mph, with gusts as high as 25 mph.

    Low: 50 °F

    Partly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Sunny, with a high near 76. Breezy, with a west southwest wind 14 to 20 mph, with gusts as high as 28 mph.

    High: 76 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 49. South southwest wind 7 to 14 mph, with gusts as high as 21 mph.

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 79. Breezy, with a southwest wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 79 °F

    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 47. South southwest wind 7 to 11 mph.

    Low: 47 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after noon.  Partly sunny, with a high near 71. Chance of precipitation is 30%.

    High: 71 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 41. Chance of precipitation is 40%.

    Low: 41 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 54. South wind 8 to 11 mph.
Tuesday
Sunny, with a high near 77. Breezy, with a southwest wind 11 to 16 mph increasing to 19 to 24 mph in the morning. Winds could gust as high as 37 mph.
Tuesday Night
Partly cloudy, with a low around 50. Breezy, with a southwest wind 14 to 17 mph, with gusts as high as 25 mph.
Wednesday
Sunny, with a high near 76. Breezy, with a west southwest wind 14 to 20 mph, with gusts as high as 28 mph.
Wednesday Night
Mostly clear, with a low around 49. South southwest wind 7 to 14 mph, with gusts as high as 21 mph.
Thursday
Sunny, with a high near 79. Breezy, with a southwest wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 28 mph.
Thursday Night
Mostly clear, with a low around 47. South southwest wind 7 to 11 mph.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 71. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 41. Chance of precipitation is 40%.
Saturday
A 30 percent chance of showers, mainly after noon. Mostly sunny, with a high near 65.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 39.
Sunday
A chance of showers. Partly sunny, with a high near 57.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 35.
Monday
A chance of showers. Mostly cloudy, with a high near 55.
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ABOUT THIS FORECAST

 
Point Forecast:
Bar Nunn WY
 42.92°N 106.35°W (Elev. 5322 ft)
5:49 pm MDT Sep 29, 2025
6pm MDT Sep 29, 2025-6pm MDT Oct 6, 2025
 
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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