Prolonged Extreme Cold; Eastern U.S. Winter Storm

Another Arctic blast will surge south across the northern Plains tonight, crossing the Midwest and reaching the Gulf Coast Friday night. Dangerously cold temperatures will persist across the eastern U.S. into early February. There is increasing confidence for significant heavy snow across much of the Southern Appalachians, Carolinas, and southern Mid-Atlantic Friday into Sunday. Read More >

Current conditions at

Challis - Challis Airport (KLLJ)

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

Overcast

39°F

4°C

Humidity 41%
Wind Speed N 0 MPH
Barometer 30.37 in (1028.45 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Last update 29 Jan 03:15 PM MST
Extended Forecast for

13 Miles NNW Mackay ID

  • Tonight

    Tonight: Mostly cloudy, with a low around 12. West northwest wind 8 to 10 mph.

    Low: 12 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 27. West northwest wind around 9 mph.

    High: 27 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 17. West wind 9 to 14 mph, with gusts as high as 18 mph.

    Low: 17 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 28. West wind 8 to 14 mph, with gusts as high as 18 mph.

    High: 28 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 19. South southwest wind 7 to 10 mph.

    Low: 19 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 30.

    High: 30 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 25.

    High: 25 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 13.

    Low: 13 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 12. West northwest wind 8 to 10 mph.
Friday
Mostly cloudy, with a high near 27. West northwest wind around 9 mph.
Friday Night
Mostly cloudy, with a low around 17. West wind 9 to 14 mph, with gusts as high as 18 mph.
Saturday
Partly sunny, with a high near 28. West wind 8 to 14 mph, with gusts as high as 18 mph.
Saturday Night
Mostly cloudy, with a low around 19. South southwest wind 7 to 10 mph.
Sunday
Partly sunny, with a high near 30.
Sunday Night
Mostly cloudy, with a low around 16.
Monday
Mostly sunny, with a high near 25.
Monday Night
Partly cloudy, with a low around 13.
Tuesday
Mostly sunny, with a high near 25.
Tuesday Night
Partly cloudy, with a low around 16.
Wednesday
Sunny, with a high near 30.
Wednesday Night
Partly cloudy, with a low around 20.
Thursday
Sunny, with a high near 34.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles NNW Mackay ID
 44.08°N 113.74°W (Elev. 10069 ft)
1:24 pm MST Jan 29, 2026
3pm MST Jan 29, 2026-6pm MST Feb 5, 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