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

Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Hazardous Weather Conditions

Current conditions at

Casper, Natrona County International Airport (KCPR)

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

Clear

41°F

5°C

Humidity 38%
Wind Speed SSW 18 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 01 Jan 06:20 AM MST
Extended Forecast for

Casper WY

  • New Year's Day

    New Year's Day: A 20 percent chance of showers after 2pm. Increasing clouds, with a high near 50. Windy, with a southwest wind 22 to 26 mph, with gusts as high as 40 mph.

    High: 50 °F

    Slight Chance
    Showers and
    Windy

  • Tonight

    Tonight: A chance of showers before 10pm, then a slight chance of showers after 1am. Mostly cloudy, with a steady temperature around 45. Windy, with a southwest wind 20 to 28 mph, with gusts as high as 45 mph. Chance of precipitation is 30%.

    Low: 45 °F

    Chance
    Showers and
    Windy

  • Friday

    Friday: Cloudy, then gradually becoming mostly sunny, with a high near 51. Breezy, with a west southwest wind 11 to 16 mph, with gusts as high as 26 mph.

    High: 51 °F

    Cloudy and
    Breezy then
    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 36. Breezy, with a southwest wind 13 to 18 mph, with gusts as high as 29 mph.

    Low: 36 °F

    Partly Cloudy
    and Breezy

  • Saturday

    Saturday: Mostly sunny, with a high near 53. Breezy, with a southwest wind 18 to 21 mph, with gusts as high as 31 mph.

    High: 53 °F

    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 41. Windy, with a southwest wind 21 to 31 mph, with gusts as high as 44 mph.

    Low: 41 °F

    Mostly Cloudy
    and Windy

  • Sunday

    Sunday: Mostly sunny, with a high near 55. Windy, with a southwest wind 22 to 31 mph, with gusts as high as 44 mph.

    High: 55 °F

    Mostly Sunny
    and Windy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 38. Breezy.

    Low: 38 °F

    Mostly Cloudy
    and Breezy

  • Monday

    Monday: Partly sunny, with a high near 53. Windy.

    High: 53 °F

    Partly Sunny
    and Windy

Detailed Forecast

New Year's Day
A 20 percent chance of showers after 2pm. Increasing clouds, with a high near 50. Windy, with a southwest wind 22 to 26 mph, with gusts as high as 40 mph.
Tonight
A chance of showers before 10pm, then a slight chance of showers after 1am. Mostly cloudy, with a steady temperature around 45. Windy, with a southwest wind 20 to 28 mph, with gusts as high as 45 mph. Chance of precipitation is 30%.
Friday
Cloudy, then gradually becoming mostly sunny, with a high near 51. Breezy, with a west southwest wind 11 to 16 mph, with gusts as high as 26 mph.
Friday Night
Partly cloudy, with a low around 36. Breezy, with a southwest wind 13 to 18 mph, with gusts as high as 29 mph.
Saturday
Mostly sunny, with a high near 53. Breezy, with a southwest wind 18 to 21 mph, with gusts as high as 31 mph.
Saturday Night
Mostly cloudy, with a low around 41. Windy, with a southwest wind 21 to 31 mph, with gusts as high as 44 mph.
Sunday
Mostly sunny, with a high near 55. Windy, with a southwest wind 22 to 31 mph, with gusts as high as 44 mph.
Sunday Night
Mostly cloudy, with a low around 38. Breezy.
Monday
Partly sunny, with a high near 53. Windy.
Monday Night
Partly cloudy, with a low around 34. Breezy.
Tuesday
Partly sunny, with a high near 48. Breezy.
Tuesday Night
Partly cloudy, with a low around 30. Breezy.
Wednesday
Mostly sunny, with a high near 46. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Casper WY
 42.83°N 106.34°W (Elev. 5236 ft)
Last Update:
5:47 am MST Jan 1, 2026
Forecast Valid:
6am MST Jan 1, 2026-6pm MST Jan 7, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation