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

Heat Wave Continues in the West; Critical Fire Weather Conditions in the High Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Critical fire weather conditions will continue over the next couple of days across portions of the High Plains as gusty winds and dry conditions persist. Read More >

Hazardous Weather Conditions

Current conditions at

Alpine (K46U)

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

Clear

55°F

13°C

Humidity 28%
Wind Speed N 0 MPH
Barometer 30.3 in (1026.08 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 18 Mar 11:45 AM MDT
Extended Forecast for

Etna WY

  • This Afternoon

    This Afternoon: Sunny, with a high near 66. West southwest wind 7 to 11 mph.

    High: 66 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 36. West southwest wind 5 to 9 mph becoming calm in the evening.

    Low: 36 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 69. Calm wind becoming west southwest 5 to 7 mph in the afternoon.

    High: 69 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 37. West southwest wind 5 to 7 mph becoming calm in the evening.

    Low: 37 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 69. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 69 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 40. West southwest wind around 6 mph becoming calm in the evening.

    Low: 40 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 69. Light and variable wind becoming west 8 to 13 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 69 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers after noon. Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 66. West southwest wind 7 to 11 mph.
Tonight
Mostly clear, with a low around 36. West southwest wind 5 to 9 mph becoming calm in the evening.
Thursday
Sunny, with a high near 69. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 37. West southwest wind 5 to 7 mph becoming calm in the evening.
Friday
Sunny, with a high near 69. Calm wind becoming west southwest around 6 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 40. West southwest wind around 6 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 69. Light and variable wind becoming west 8 to 13 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 35.
Sunday
A 20 percent chance of showers after noon. Partly sunny, with a high near 57.
Sunday Night
Partly cloudy, with a low around 32.
Monday
Mostly sunny, with a high near 58.
Monday Night
A slight chance of showers. Mostly cloudy, with a low around 36.
Tuesday
A chance of showers. Partly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Etna WY
 43.05°N 111.01°W (Elev. 5948 ft)
Last Update:
11:46 am MDT Mar 18, 2026
Forecast Valid:
12pm MDT Mar 18, 2026-6pm MDT Mar 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation