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

Alpine (K46U)

Lat: 43.1846°NLon: 111.0424°WElev: 5634.0ft.

Partly Cloudy

72°F

22°C

Humidity 53%
Wind Speed SE 13 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 27 Aug 06:55 PM MDT
Extended Forecast for

Etna WY

  • Tonight

    Tonight: Scattered showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 52. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

    Low: 52 °F

    Scattered
    Showers

  • Friday

    Friday: Scattered showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 76. Calm wind becoming west southwest around 6 mph in the afternoon. Chance of precipitation is 30%.

    High: 76 °F

    Scattered
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms likely, then showers after 3am. Low around 50. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%.

    Low: 50 °F

    Scattered
    Showers then
    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm. High near 70. Calm wind becoming west southwest around 6 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 70 °F

    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 44. West southwest wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 44 °F

    Chance
    T-storms then
    Showers

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 70. Light and variable wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 60%.

    High: 70 °F

    Showers
    Likely then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39. West southwest wind 5 to 7 mph becoming light and variable after midnight.

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after noon. Sunny, with a high near 73. Chance of precipitation is 30%.

    High: 73 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 42.

    Low: 42 °F

    Slight Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Scattered showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 52. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Friday
Scattered showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 76. Calm wind becoming west southwest around 6 mph in the afternoon. Chance of precipitation is 30%.
Friday Night
Showers and thunderstorms likely, then showers after 3am. Low around 50. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%.
Saturday
Showers and possibly a thunderstorm. High near 70. Calm wind becoming west southwest around 6 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 44. West southwest wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 70. Light and variable wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Sunday Night
Mostly clear, with a low around 39. West southwest wind 5 to 7 mph becoming light and variable after midnight.
Monday
A chance of showers, with thunderstorms also possible after noon. Sunny, with a high near 73. Chance of precipitation is 30%.
Monday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 42.
Tuesday
A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 75.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 42.
Wednesday
A chance of showers and thunderstorms. Sunny, with a high near 72.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 41.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
Etna WY
 43.03°N 111°W (Elev. 5860 ft)
Last Update:
6:01 pm MDT Aug 27, 2026
Forecast Valid:
7pm MDT Aug 27, 2026-6pm MDT Sep 3, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation