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

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

Casper, Natrona County International Airport (KCPR)

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

Clear

57°F

14°C

Humidity 38%
Wind Speed SW 24 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 24 Dec 07:05 PM MST
Extended Forecast for

Casper WY

High Wind Warning until December 25, 11:00am
Click here for hazard details and duration
High Wind Warning
  •  
    High Wind Warning until December 25, 11:00am

    NOW until 11:00am Thu

    High Wind Warning

  • Tonight

    Low: 61 °F

    Partly Cloudy
    and Windy

  • Christmas Day

    Christmas Day: Isolated showers between noon and 2pm. Mostly sunny, with a high near 60. Windy, with a west southwest wind 29 to 34 mph decreasing to 22 to 27 mph in the afternoon. Winds could gust as high as 55 mph. Chance of precipitation is 20%.

    High: 60 °F

    Windy. Mostly
    Sunny then
    Isolated
    Showers

  • Thursday Night

    Thursday Night: Isolated showers before 8pm. Mostly clear, with a low around 41. Breezy, with a southwest wind 18 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.

    Low: 41 °F

    Breezy.
    Isolated
    Showers then
    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 54. Windy, with a southwest wind 22 to 30 mph, with gusts as high as 41 mph.

    High: 54 °F

    Partly Sunny
    and Windy

  • Friday Night

    Friday Night: A chance of rain showers before 11pm, then a slight chance of rain and snow showers. Mostly cloudy, with a low around 36. Breezy, with a southwest wind around 23 mph, with gusts as high as 36 mph. Chance of precipitation is 30%.

    Low: 36 °F

    Chance
    Rain/Snow and
    Breezy

  • Saturday

    Saturday: Mostly sunny, with a high near 45. Windy, with a southwest wind 20 to 25 mph becoming northwest in the afternoon. Winds could gust as high as 36 mph.

    High: 45 °F

    Mostly Sunny
    and Windy

  • Saturday Night

    Saturday Night: A 40 percent chance of snow showers. Mostly cloudy, with a low around 14. Blustery, with a north wind 9 to 15 mph, with gusts as high as 23 mph.

    Low: 14 °F

    Chance Snow
    Showers and
    Blustery

  • Sunday

    Sunday: Sunny, with a high near 31.

    High: 31 °F

    Sunny

Detailed Forecast

Tonight
Partly cloudy, with a steady temperature around 61. Windy, with a southwest wind 21 to 31 mph, with gusts as high as 49 mph.
Christmas Day
Isolated showers between noon and 2pm. Mostly sunny, with a high near 60. Windy, with a west southwest wind 29 to 34 mph decreasing to 22 to 27 mph in the afternoon. Winds could gust as high as 55 mph. Chance of precipitation is 20%.
Thursday Night
Isolated showers before 8pm. Mostly clear, with a low around 41. Breezy, with a southwest wind 18 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.
Friday
Partly sunny, with a high near 54. Windy, with a southwest wind 22 to 30 mph, with gusts as high as 41 mph.
Friday Night
A chance of rain showers before 11pm, then a slight chance of rain and snow showers. Mostly cloudy, with a low around 36. Breezy, with a southwest wind around 23 mph, with gusts as high as 36 mph. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 45. Windy, with a southwest wind 20 to 25 mph becoming northwest in the afternoon. Winds could gust as high as 36 mph.
Saturday Night
A 40 percent chance of snow showers. Mostly cloudy, with a low around 14. Blustery, with a north wind 9 to 15 mph, with gusts as high as 23 mph.
Sunday
Sunny, with a high near 31.
Sunday Night
Mostly clear, with a low around 15.
Monday
Sunny, with a high near 39.
Monday Night
Partly cloudy, with a low around 23.
Tuesday
Mostly sunny, with a high near 46.
Tuesday Night
Partly cloudy, with a low around 27.
Wednesday
Sunny, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Casper WY
 42.85°N 106.31°W (Elev. 5151 ft)
Last Update:
5:47 pm MST Dec 24, 2025
Forecast Valid:
7pm MST Dec 24, 2025-6pm MST Dec 31, 2025
 
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