Critical Fire Weather in the High Plains and Midwest; Heavy Snow in the Western Mountains and Northern Plains

Gusty winds and low relative humidity will bring critical fire weather to the central/southern High Plains and portions of the Midwest. Two Pacific storms will continue to bring heavy mountain snow and gusty winds to the western U.S. through Thursday. A swath of wintry weather, including heavy snow and a wintry mix, is expected from the Northern Plains to New England. Read More >

Current conditions at

Challis - Challis Airport (KLLJ)

Lat: 44.523°NLon: 114.21611°WElev: 5026.0ft.

Mostly Cloudy

36°F

2°C

Humidity 31%
Wind Speed W 18 MPH
Barometer 29.4 in (995.6 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 18 Feb 02:20 PM MST
Extended Forecast for

18 Miles NW Mackay ID

  • This Afternoon

    This Afternoon: A 40 percent chance of snow.  Mostly cloudy, with a high near 24. West northwest wind around 10 mph.  Total daytime snow accumulation of less than a half inch possible.

    High: 24 °F

    Chance Snow

  • Tonight

    Tonight: A 40 percent chance of snow, mainly before midnight.  Mostly cloudy, with a low around 4. Wind chill values as low as -3. North northwest wind 5 to 9 mph becoming west after midnight.  New snow accumulation of less than one inch possible.

    Low: 4 °F

    Chance Snow

  • Thursday

    Thursday: A 20 percent chance of snow after 3pm.  Mostly sunny, with a high near 18. Wind chill values as low as -3. Light and variable wind becoming south southeast around 6 mph in the afternoon.

    High: 18 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 0. Southeast wind around 6 mph becoming calm  in the evening.

    Low: 0 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of snow after 11am.  Partly sunny, with a high near 20. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 20 °F

    Slight Chance
    Snow

  • Friday Night

    Friday Night: Partly cloudy, with a low around -1.

    Low: -1 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 24.

    High: 24 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 11.

    Low: 11 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 40 percent chance of snow. Mostly cloudy, with a high near 24. West northwest wind around 10 mph. Total daytime snow accumulation of less than a half inch possible.
Tonight
A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 4. Wind chill values as low as -3. North northwest wind 5 to 9 mph becoming west after midnight. New snow accumulation of less than one inch possible.
Thursday
A 20 percent chance of snow after 3pm. Mostly sunny, with a high near 18. Wind chill values as low as -3. Light and variable wind becoming south southeast around 6 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 0. Southeast wind around 6 mph becoming calm in the evening.
Friday
A 20 percent chance of snow after 11am. Partly sunny, with a high near 20. Calm wind becoming west northwest around 6 mph in the afternoon.
Friday Night
Partly cloudy, with a low around -1.
Saturday
Sunny, with a high near 24.
Saturday Night
Mostly cloudy, with a low around 11.
Sunday
Mostly sunny, with a high near 32.
Sunday Night
Partly cloudy, with a low around 18.
Monday
A 20 percent chance of snow. Mostly sunny, with a high near 36.
Monday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 21.
Tuesday
A 50 percent chance of snow. Partly sunny, with a high near 33.
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ABOUT THIS FORECAST

 
Point Forecast:
18 Miles NW Mackay ID
 44.09°N 113.9°W (Elev. 6276 ft)
11:46 am MST Feb 18, 2026
2pm MST Feb 18, 2026-6pm MST Feb 24, 2026
 
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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