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

Lake Effect Snow in the Lower Great Lakes; Unsettled Pattern in the Pacific Northwest

Lake-effect snow will continue downwind of Lakes Erie and Ontario through Friday. Lake Effect Snow Warnings have been issued. In the Western U.S., rain and higher elevation snow will continue over the Great Basin through Friday. A front will move over the Pacific Northwest this afternoon and produce light rain and higher elevation snow over the Cascades through Saturday. Read More >

Current conditions at

Challis - Challis Airport (KLLJ)

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

Mostly Cloudy

25°F

-4°C

Humidity 79%
Wind Speed WNW 3 MPH
Barometer 30.21 in (1023.03 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 12 Feb 08:05 AM MST
Extended Forecast for

16 Miles NW Mackay ID

  • Today

    Today: Mostly sunny, with a high near 26. West northwest wind around 8 mph.

    High: 26 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a temperature rising to around 27 by 10pm. North wind 6 to 9 mph becoming southeast after midnight.

    Low: 17 °F⇑

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 23. North northeast wind 8 to 10 mph becoming west in the afternoon.

    High: 23 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 16. West southwest wind around 11 mph.

    Low: 16 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow showers after 11am. Mostly cloudy, with a high near 26. Southwest wind 13 to 15 mph, with gusts as high as 20 mph.

    High: 26 °F

    Slight Chance
    Snow Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of snow showers before 11pm. Mostly cloudy, with a low around 19.

    Low: 19 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

  • Sunday

    Sunday: A 20 percent chance of snow. Partly sunny, with a high near 27.

    High: 27 °F

    Slight Chance
    Snow

  • Sunday Night

    Sunday Night: A 20 percent chance of snow. Mostly cloudy, with a low around 19.

    Low: 19 °F

    Slight Chance
    Snow

  • Washington's Birthday

    Washington's Birthday: A 40 percent chance of snow, mainly after 11am. Partly sunny, with a high near 25.

    High: 25 °F

    Chance Snow

Detailed Forecast

Today
Mostly sunny, with a high near 26. West northwest wind around 8 mph.
Tonight
Partly cloudy, with a temperature rising to around 27 by 10pm. North wind 6 to 9 mph becoming southeast after midnight.
Friday
Mostly sunny, with a high near 23. North northeast wind 8 to 10 mph becoming west in the afternoon.
Friday Night
Mostly cloudy, with a low around 16. West southwest wind around 11 mph.
Saturday
A 20 percent chance of snow showers after 11am. Mostly cloudy, with a high near 26. Southwest wind 13 to 15 mph, with gusts as high as 20 mph.
Saturday Night
A 20 percent chance of snow showers before 11pm. Mostly cloudy, with a low around 19.
Sunday
A 20 percent chance of snow. Partly sunny, with a high near 27.
Sunday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 19.
Washington's Birthday
A 40 percent chance of snow, mainly after 11am. Partly sunny, with a high near 25.
Monday Night
Snow likely. The snow could be heavy at times. Mostly cloudy, with a low around 17. Chance of precipitation is 70%.
Tuesday
Snow likely. Mostly cloudy, with a high near 20. Chance of precipitation is 70%.
Tuesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 10.
Wednesday
A 50 percent chance of snow. Mostly cloudy, with a high near 16.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
16 Miles NW Mackay ID
 44.09°N 113.81°W (Elev. 10318 ft)
Last Update:
4:31 am MST Feb 12, 2026
Forecast Valid:
8am MST Feb 12, 2026-6pm MST Feb 18, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation