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

Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Hazardous Weather Conditions

Current conditions at

Casper, Natrona County International Airport (KCPR)

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

Clear

32°F

0°C

Humidity 55%
Wind Speed SW 21 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 07 Dec 09:53 PM MST
Extended Forecast for

Casper/Natrona Intl Airport WY

High Wind Watch December 8, 11:00pm until December 11, 05:00am
Click here for hazard details and duration
High Wind Watch

  • Tonight

    Tonight: Partly cloudy, with a low around 26. Breezy, with a south southwest wind 16 to 18 mph, with gusts as high as 25 mph.

    Low: 26 °F

    Partly Cloudy
    and Breezy

  • Monday

    Monday: Sunny, with a high near 44. Breezy, with a west wind 16 to 24 mph, with gusts as high as 33 mph.

    High: 44 °F

    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 34. Windy, with a southwest wind 20 to 30 mph, with gusts as high as 41 mph.

    Low: 34 °F

    Mostly Cloudy
    and Windy

  • Tuesday

    Tuesday: Partly sunny, with a high near 51. Windy, with a southwest wind 21 to 31 mph, with gusts as high as 44 mph.

    High: 51 °F

    Partly Sunny
    and Windy

  • Tuesday Night

    Tuesday Night: A chance of rain showers before 11pm, then a chance of rain and snow showers. Mostly cloudy, with a low around 28. Breezy, with a southwest wind 10 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 28 °F

    Chance
    Rain/Snow and
    Breezy

  • Wednesday

    Wednesday: A chance of rain and snow showers before 11am, then a chance of rain showers. Mostly cloudy, with a high near 53. Breezy, with a west southwest wind 17 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 30%.

    High: 53 °F

    Breezy.
    Chance
    Rain/Snow
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of rain showers before 11pm, then a chance of rain and snow showers. Mostly cloudy, with a low around 25. Breezy, with a northwest wind 17 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.

    Low: 25 °F

    Chance
    Rain/Snow and
    Breezy

  • Thursday

    Thursday: A chance of rain and snow showers before 11am, then a chance of snow showers. Mostly cloudy, with a high near 37. Chance of precipitation is 50%.

    High: 37 °F

    Chance
    Rain/Snow
    then Chance
    Snow Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of snow showers. Mostly cloudy, with a low around 14.

    Low: 14 °F

    Chance Snow
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 26. Breezy, with a south southwest wind 16 to 18 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 44. Breezy, with a west wind 16 to 24 mph, with gusts as high as 33 mph.
Monday Night
Mostly cloudy, with a low around 34. Windy, with a southwest wind 20 to 30 mph, with gusts as high as 41 mph.
Tuesday
Partly sunny, with a high near 51. Windy, with a southwest wind 21 to 31 mph, with gusts as high as 44 mph.
Tuesday Night
A chance of rain showers before 11pm, then a chance of rain and snow showers. Mostly cloudy, with a low around 28. Breezy, with a southwest wind 10 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Wednesday
A chance of rain and snow showers before 11am, then a chance of rain showers. Mostly cloudy, with a high near 53. Breezy, with a west southwest wind 17 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 30%.
Wednesday Night
A chance of rain showers before 11pm, then a chance of rain and snow showers. Mostly cloudy, with a low around 25. Breezy, with a northwest wind 17 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.
Thursday
A chance of rain and snow showers before 11am, then a chance of snow showers. Mostly cloudy, with a high near 37. Chance of precipitation is 50%.
Thursday Night
A 30 percent chance of snow showers. Mostly cloudy, with a low around 14.
Friday
Mostly cloudy, with a high near 33.
Friday Night
Mostly cloudy, with a low around 18.
Saturday
Mostly sunny, with a high near 46.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
Mostly sunny, with a high near 49. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Casper/Natrona Intl Airport WY
 42.93°N 106.47°W (Elev. 5322 ft)
Last Update:
8:31 pm MST Dec 7, 2025
Forecast Valid:
10pm MST Dec 7, 2025-6pm MST Dec 14, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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