Heavy Snow from the Midwest into the Great Lakes; Locally Heavy Rain in the Western Gulf Coast

A significant winter storm will produce a broad area of moderate to heavy snow from the Midwest through the western Great Lakes. Significant snow accumulations of 6-12 inches, and locally more than 1 foot, and gusty wind may cause hazardous travel conditions. Thunderstorms, some severe, and showers may produce locally heavy rain and isolated flash flooding along the western Gulf Coast. Read More >

Hazardous Weather Conditions

Current conditions at

Casper, Natrona County International Airport (KCPR)

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

Clear

-11°F

-24°C

Humidity 90%
Wind Speed N 0 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint -13°F (-25°C)
Visibility 10.00 mi
Last update 29 Nov 11:53 PM MST
Extended Forecast for

Bar Nunn WY

  • Overnight

    Overnight: Mostly cloudy, with a temperature rising to around 0 by 5am. Wind chill values as low as -15. Calm wind becoming east around 5 mph.

    Low: -6 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of snow showers between 2pm and 3pm.  Cloudy, with a high near 24. Wind chill values as low as -10. East wind 7 to 13 mph, with gusts as high as 20 mph.  Chance of precipitation is 20%.

    High: 24 °F

    Cloudy then
    Slight Chance
    Snow Showers

  • Sunday Night

    Sunday Night: Cloudy during the early evening, then gradual clearing, with a low around 6. Wind chill values as low as -10. North wind 6 to 9 mph becoming west southwest after midnight.

    Low: 6 °F

    Gradual
    Clearing

  • Monday

    Monday: Sunny, with a high near 33. Wind chill values as low as -10. West southwest wind 10 to 13 mph, with gusts as high as 20 mph.

    High: 33 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 19. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 19 °F

    Partly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Tuesday

    Tuesday: A 30 percent chance of snow showers, mainly after 11am.  Mostly cloudy, with a high near 38. Breezy, with a southwest wind 13 to 23 mph, with gusts as high as 34 mph.

    High: 38 °F

    Chance Snow
    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: Snow showers likely.  Cloudy, with a low around 17. West wind 7 to 10 mph becoming north northeast after midnight.  Chance of precipitation is 70%.

    Low: 17 °F

    Snow Showers
    Likely

  • Wednesday

    Wednesday: A 40 percent chance of snow showers before 11am.  Partly sunny, with a high near 27.

    High: 27 °F

    Chance Snow
    Showers then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 7.

    Low: 7 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a temperature rising to around 0 by 5am. Wind chill values as low as -15. Calm wind becoming east around 5 mph.
Sunday
A slight chance of snow showers between 2pm and 3pm. Cloudy, with a high near 24. Wind chill values as low as -10. East wind 7 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Sunday Night
Cloudy during the early evening, then gradual clearing, with a low around 6. Wind chill values as low as -10. North wind 6 to 9 mph becoming west southwest after midnight.
Monday
Sunny, with a high near 33. Wind chill values as low as -10. West southwest wind 10 to 13 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 19. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph.
Tuesday
A 30 percent chance of snow showers, mainly after 11am. Mostly cloudy, with a high near 38. Breezy, with a southwest wind 13 to 23 mph, with gusts as high as 34 mph.
Tuesday Night
Snow showers likely. Cloudy, with a low around 17. West wind 7 to 10 mph becoming north northeast after midnight. Chance of precipitation is 70%.
Wednesday
A 40 percent chance of snow showers before 11am. Partly sunny, with a high near 27.
Wednesday Night
Mostly clear, with a low around 7.
Thursday
Mostly sunny, with a high near 31. Breezy.
Thursday Night
Partly cloudy, with a low around 15.
Friday
Partly sunny, with a high near 36. Breezy.
Friday Night
Mostly cloudy, with a low around 22. Breezy.
Saturday
A slight chance of rain and snow showers. Partly sunny, with a high near 40. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Bar Nunn WY
 42.92°N 106.35°W (Elev. 5322 ft)
12:01 am MST Nov 30, 2025
12am MST Nov 30, 2025-6pm MST Dec 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