Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. Read More >

Current conditions at

Challis - Challis Airport (KLLJ)

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

Clear

32°F

0°C

Humidity 50%
Wind Speed N 0 MPH
Barometer 30.42 in (1030.14 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 30 Dec 03:35 PM MST
Extended Forecast for

23 Miles NW Mackay ID

  • Tonight

    Tonight: Mostly clear, with a low around 25. Light west wind.

    Low: 25 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 39. Light south southwest wind.

    High: 39 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a steady temperature around 31. South wind 3 to 5 mph.

    Low: 31 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: A chance of snow before 2pm, then a chance of rain and snow.  Mostly cloudy, with a high near 37. Light south wind.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 37 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of rain and snow.  Mostly cloudy, with a low around 30. Light south southwest wind.  Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 30 °F

    Chance
    Rain/Snow

  • Friday

    Friday: A chance of rain and snow before 8am, then a chance of rain between 8am and 11am.  Partly sunny, with a high near 39. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 39 °F

    Chance
    Rain/Snow
    then Partly
    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of rain after 11pm.  Mostly cloudy, with a low around 31.

    Low: 31 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A chance of rain and snow before 11am, then a chance of snow.  Mostly cloudy, with a high near 36. Chance of precipitation is 50%.

    High: 36 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Saturday Night

    Saturday Night: A 30 percent chance of snow.  Mostly cloudy, with a low around 22.

    Low: 22 °F

    Chance Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 25. Light west wind.
Wednesday
Partly sunny, with a high near 39. Light south southwest wind.
Wednesday Night
Mostly cloudy, with a steady temperature around 31. South wind 3 to 5 mph.
New Year's Day
A chance of snow before 2pm, then a chance of rain and snow. Mostly cloudy, with a high near 37. Light south wind. Chance of precipitation is 40%. Little or no snow accumulation expected.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 30. Light south southwest wind. Chance of precipitation is 30%. Little or no snow accumulation expected.
Friday
A chance of rain and snow before 8am, then a chance of rain between 8am and 11am. Partly sunny, with a high near 39. Chance of precipitation is 30%. Little or no snow accumulation expected.
Friday Night
A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 31.
Saturday
A chance of rain and snow before 11am, then a chance of snow. Mostly cloudy, with a high near 36. Chance of precipitation is 50%.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 22.
Sunday
A 30 percent chance of snow. Partly sunny, with a high near 32.
Sunday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 21.
Monday
A 20 percent chance of snow. Partly sunny, with a high near 32.
Monday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 20.
Tuesday
A 20 percent chance of snow. Partly sunny, with a high near 32.
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ABOUT THIS FORECAST

 
Point Forecast:
23 Miles NW Mackay ID
 44.1°N 113.99°W (Elev. 6660 ft)
1:02 pm MST Dec 30, 2025
3pm MST Dec 30, 2025-6pm MST Jan 6, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database