Storm Systems Continue to Impact the Pacific Northwest; Lake Effect Snow Continues

A second Pacific cold front will cross the Pacific Northwest Wednesday followed by another atmospheric river. Each of these features will bring additional periods of gusty winds, mountain snow, and heavy to excessive rainfall with renewed flooding. Heavy lake effect snow continues into Tuesday east of Lakes Erie and Ontario. Read More >

Current conditions at

Casper, Natrona County International Airport (KCPR)

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

Clear

46°F

8°C

Humidity 20%
Wind Speed SSW 21 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 15 Dec 09:35 PM MST
Extended Forecast for

9 Miles SSE Arminto WY

High Wind Watch December 17, 01:00am until December 17, 11:00pm
Click here for hazard details and duration
High Wind Watch
  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 32. Breezy, with a west southwest wind 16 to 20 mph, with gusts as high as 30 mph.

    Low: 32 °F

    Decreasing
    Clouds and
    Breezy

  • Tuesday

    Tuesday: Sunny, with a high near 53. Breezy, with a west southwest wind 9 to 14 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 53 °F

    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 34. Breezy, with a southwest wind 17 to 22 mph, with gusts as high as 36 mph.

    Low: 34 °F

    Partly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Scattered rain showers after 11am, mixing with snow after 2pm.  Mostly sunny, with a high near 53. Very windy, with a southwest wind 36 to 45 mph, with gusts as high as 70 mph.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 53 °F

    Very Windy.
    Scattered
    Showers then
    Scattered
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 20. Windy, with a west wind 24 to 34 mph decreasing to 14 to 24 mph after midnight. Winds could gust as high as 50 mph.

    Low: 20 °F

    Mostly Clear
    and Windy

  • Thursday

    Thursday: Partly sunny, with a high near 40. Breezy, with a west southwest wind 11 to 16 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 39 mph.

    High: 40 °F

    Partly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 32. Windy, with a southwest wind 26 to 32 mph, with gusts as high as 48 mph.

    Low: 32 °F

    Mostly Cloudy
    and Windy

  • Friday

    Friday: Mostly sunny, with a high near 54. Very windy.

    High: 54 °F

    Mostly Sunny
    and Very
    Windy

  • Friday Night

    Friday Night: A slight chance of rain and snow showers.  Mostly cloudy, with a low around 30. Windy.  Chance of precipitation is 20%.

    Low: 30 °F

    Slight Chance
    Rain/Snow and
    Windy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 32. Breezy, with a west southwest wind 16 to 20 mph, with gusts as high as 30 mph.
Tuesday
Sunny, with a high near 53. Breezy, with a west southwest wind 9 to 14 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 33 mph.
Tuesday Night
Partly cloudy, with a low around 34. Breezy, with a southwest wind 17 to 22 mph, with gusts as high as 36 mph.
Wednesday
Scattered rain showers after 11am, mixing with snow after 2pm. Mostly sunny, with a high near 53. Very windy, with a southwest wind 36 to 45 mph, with gusts as high as 70 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Wednesday Night
Mostly clear, with a low around 20. Windy, with a west wind 24 to 34 mph decreasing to 14 to 24 mph after midnight. Winds could gust as high as 50 mph.
Thursday
Partly sunny, with a high near 40. Breezy, with a west southwest wind 11 to 16 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 39 mph.
Thursday Night
Mostly cloudy, with a low around 32. Windy, with a southwest wind 26 to 32 mph, with gusts as high as 48 mph.
Friday
Mostly sunny, with a high near 54. Very windy.
Friday Night
A slight chance of rain and snow showers. Mostly cloudy, with a low around 30. Windy. Chance of precipitation is 20%.
Saturday
A 20 percent chance of snow showers before 11am. Mostly sunny, with a high near 47. Breezy.
Saturday Night
Partly cloudy, with a low around 27. Breezy.
Sunday
Mostly sunny, with a high near 46. Breezy.
Sunday Night
Mostly cloudy, with a low around 33. Breezy.
Monday
Mostly sunny, with a high near 52. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles SSE Arminto WY
 43.06°N 107.17°W (Elev. 6024 ft)
8:47 pm MST Dec 15, 2025
9pm MST Dec 15, 2025-6pm MST Dec 22, 2025
 
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Additional Resources

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