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

Storm Impacting the Southwest U.S.; Above Normal Temperatures Further East

A storm system will shift across the southwest U.S. through Thursday with widespread showers and isolated thunderstorms. Isolated flooding is possible. High-elevation snow is also expected in parts of Nevada and the southern Sierra Nevada range. East of this storm, above average temperatures will challenge or break daily record high temperatures this week in the southern Plains and southeast U.S. Read More >

Current conditions at

Casper, Natrona County International Airport (KCPR)

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

Clear

45°F

7°C

Humidity 56%
Wind Speed SSW 12 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 18 Nov 05:05 PM MST
Extended Forecast for

13 Miles ENE Arminto WY

  • Tonight

    Tonight: Mostly cloudy, with a low around 33. Breezy, with a west southwest wind 11 to 15 mph, with gusts as high as 21 mph.

    Low: 33 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 50. West wind 6 to 10 mph becoming east northeast in the afternoon.

    High: 50 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 31. Northeast wind 5 to 8 mph becoming northwest after midnight.

    Low: 31 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 50. West wind around 7 mph becoming east northeast in the afternoon.

    High: 50 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 30. North northeast wind around 6 mph becoming west after midnight.

    Low: 30 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 50. West southwest wind 6 to 10 mph.

    High: 50 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 29. West wind around 10 mph.

    Low: 29 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 33. Breezy, with a west southwest wind 11 to 15 mph, with gusts as high as 21 mph.
Wednesday
Mostly sunny, with a high near 50. West wind 6 to 10 mph becoming east northeast in the afternoon.
Wednesday Night
Partly cloudy, with a low around 31. Northeast wind 5 to 8 mph becoming northwest after midnight.
Thursday
Sunny, with a high near 50. West wind around 7 mph becoming east northeast in the afternoon.
Thursday Night
Partly cloudy, with a low around 30. North northeast wind around 6 mph becoming west after midnight.
Friday
Mostly sunny, with a high near 50. West southwest wind 6 to 10 mph.
Friday Night
Mostly clear, with a low around 29. West wind around 10 mph.
Saturday
Sunny, with a high near 48.
Saturday Night
Mostly clear, with a low around 29.
Sunday
Sunny, with a high near 50.
Sunday Night
Partly cloudy, with a low around 31.
Monday
Mostly sunny, with a high near 51. Breezy.
Monday Night
A slight chance of rain and snow showers. Partly cloudy, with a low around 25. Breezy.
Tuesday
Scattered snow showers. Partly sunny, with a high near 36.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles ENE Arminto WY
 43.29°N 107.04°W (Elev. 6066 ft)
Last Update:
5:17 pm MST Nov 18, 2025
Forecast Valid:
5pm MST Nov 18, 2025-6pm MST Nov 25, 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