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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

Casper, Natrona County International Airport (KCPR)

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

Partly Cloudy

75°F

24°C

Humidity 34%
Wind Speed NNE 10 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 27 Aug 08:53 PM MDT
Extended Forecast for

Powder River WY

  • Tonight

    Tonight: Mostly cloudy, with a low around 60. West wind 5 to 8 mph becoming south in the evening.

    Low: 60 °F

    Mostly Cloudy

  • Friday

    Friday: Isolated showers and thunderstorms after noon. Increasing clouds, with a high near 88. 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. Chance of precipitation is 20%.

    High: 88 °F

    Breezy.
    Partly Sunny
    then Isolated
    T-storms

  • Friday Night

    Friday Night: Isolated showers and thunderstorms before 8pm. Cloudy, then gradually becoming partly cloudy, with a low around 57. Breezy, with a west wind 15 to 20 mph becoming south southwest 5 to 10 mph in the evening. Winds could gust as high as 32 mph. Chance of precipitation is 10%.

    Low: 57 °F

    Isolated
    T-storms and
    Breezy then
    Mostly Cloudy

  • Saturday

    Saturday: Isolated showers and thunderstorms after noon. Mostly sunny, with a high near 84. Windy, with a west southwest wind 8 to 18 mph increasing to 20 to 30 mph in the afternoon. Winds could gust as high as 44 mph. Chance of precipitation is 10%.

    High: 84 °F

    Mostly Sunny
    and Breezy
    then Isolated
    T-storms and
    Windy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 55. Breezy, with a southwest wind 19 to 24 mph decreasing to 13 to 18 mph in the evening. Winds could gust as high as 39 mph.

    Low: 55 °F

    Mostly Cloudy
    and Breezy

  • Sunday

    Sunday: Mostly sunny, with a high near 81. Windy, with a southwest wind 17 to 26 mph, with gusts as high as 41 mph.

    High: 81 °F

    Mostly Sunny
    and Windy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 51. Breezy, with a west southwest wind 10 to 17 mph, with gusts as high as 31 mph.

    Low: 51 °F

    Mostly Clear
    and Breezy
    then Partly
    Cloudy

  • Monday

    Monday: Sunny, with a high near 81. Breezy.

    High: 81 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Monday Night

    Monday Night: A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 52.

    Low: 52 °F

    Slight Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 60. West wind 5 to 8 mph becoming south in the evening.
Friday
Isolated showers and thunderstorms after noon. Increasing clouds, with a high near 88. 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. Chance of precipitation is 20%.
Friday Night
Isolated showers and thunderstorms before 8pm. Cloudy, then gradually becoming partly cloudy, with a low around 57. Breezy, with a west wind 15 to 20 mph becoming south southwest 5 to 10 mph in the evening. Winds could gust as high as 32 mph. Chance of precipitation is 10%.
Saturday
Isolated showers and thunderstorms after noon. Mostly sunny, with a high near 84. Windy, with a west southwest wind 8 to 18 mph increasing to 20 to 30 mph in the afternoon. Winds could gust as high as 44 mph. Chance of precipitation is 10%.
Saturday Night
Mostly cloudy, with a low around 55. Breezy, with a southwest wind 19 to 24 mph decreasing to 13 to 18 mph in the evening. Winds could gust as high as 39 mph.
Sunday
Mostly sunny, with a high near 81. Windy, with a southwest wind 17 to 26 mph, with gusts as high as 41 mph.
Sunday Night
Partly cloudy, with a low around 51. Breezy, with a west southwest wind 10 to 17 mph, with gusts as high as 31 mph.
Monday
Sunny, with a high near 81. Breezy.
Monday Night
A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 82. Breezy.
Tuesday Night
Partly cloudy, with a low around 54. Breezy.
Wednesday
Mostly sunny, with a high near 81. Breezy.
Wednesday Night
Partly cloudy, with a low around 53. Breezy.
Thursday
Mostly sunny, with a high near 80. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Powder River WY
 43.05°N 106.99°W (Elev. 5676 ft)
Last Update:
8:48 pm MDT Aug 27, 2026
Forecast Valid:
9pm MDT Aug 27, 2026-6pm MDT Sep 3, 2026
 
Forecast Discussion
 
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