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

Hazardous Weather Conditions

Current conditions at

Casper, Natrona County International Airport (KCPR)

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

Clear

54°F

12°C

Humidity 46%
Wind Speed WNW 4 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 03 Oct 10:35 PM MDT
Extended Forecast for

Arminto WY

  • Tonight

    Tonight: Isolated showers between 2am and 3am, then scattered showers and thunderstorms after 3am. Mostly cloudy, with a low around 47. South southwest wind 7 to 10 mph becoming east northeast after midnight. Chance of precipitation is 40%.

    Low: 47 °F

    Partly Cloudy
    then
    Scattered
    Showers

  • Saturday

    Saturday: Showers and thunderstorms, mainly before 4pm, then showers likely and possibly a thunderstorm after 5pm. High near 61. Breezy, with an east wind 11 to 16 mph becoming south in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 61 °F

    Breezy.
    Scattered
    Showers then
    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 34. Breezy, with a south wind 13 to 17 mph becoming west northwest in the evening. Winds could gust as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 34 °F

    Showers and
    Breezy

  • Sunday

    Sunday: Showers, with thunderstorms also possible after 3pm. High near 44. West northwest wind 8 to 11 mph becoming east northeast in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 80%.

    High: 44 °F

    Showers

  • Sunday Night

    Sunday Night: A chance of rain showers before 9pm, then rain and snow showers likely. Cloudy, with a low around 31. East northeast wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 31 °F

    Rain/Snow
    Likely

  • Monday

    Monday: A slight chance of rain and snow showers before 10am, then a slight chance of rain showers between 10am and noon. Partly sunny, with a high near 49. East northeast wind 6 to 9 mph becoming west in the afternoon. Chance of precipitation is 20%.

    High: 49 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 30. Northwest wind around 6 mph.

    Low: 30 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Tonight
Isolated showers between 2am and 3am, then scattered showers and thunderstorms after 3am. Mostly cloudy, with a low around 47. South southwest wind 7 to 10 mph becoming east northeast after midnight. Chance of precipitation is 40%.
Saturday
Showers and thunderstorms, mainly before 4pm, then showers likely and possibly a thunderstorm after 5pm. High near 61. Breezy, with an east wind 11 to 16 mph becoming south in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm. Low around 34. Breezy, with a south wind 13 to 17 mph becoming west northwest in the evening. Winds could gust as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers, with thunderstorms also possible after 3pm. High near 44. West northwest wind 8 to 11 mph becoming east northeast in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 80%.
Sunday Night
A chance of rain showers before 9pm, then rain and snow showers likely. Cloudy, with a low around 31. East northeast wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Monday
A slight chance of rain and snow showers before 10am, then a slight chance of rain showers between 10am and noon. Partly sunny, with a high near 49. East northeast wind 6 to 9 mph becoming west in the afternoon. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 30. Northwest wind around 6 mph.
Tuesday
Sunny, with a high near 57.
Tuesday Night
Mostly clear, with a low around 37.
Wednesday
Sunny, with a high near 64.
Wednesday Night
Mostly clear, with a low around 38.
Thursday
Sunny, with a high near 64.
Thursday Night
Mostly clear, with a low around 39.
Friday
Sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
Arminto WY
 43.19°N 107.24°W (Elev. 6165 ft)
Last Update:
9:31 pm MDT Oct 3, 2025
Forecast Valid:
10pm MDT Oct 3, 2025-6pm MDT Oct 10, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation