Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

Challis - Challis Airport (KLLJ)

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

Overcast

37°F

3°C

Humidity 85%
Wind Speed N 0 MPH
Barometer 30.16 in (1021.34 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 10 Dec 12:41 AM MST
Extended Forecast for

23 Miles NW Mackay ID

  • Overnight

    Overnight: A 50 percent chance of rain, mainly before 5am.  Cloudy, with a low around 33. South wind around 10 mph becoming west northwest.

    Low: 33 °F

    Chance Rain

  • Wednesday

    Wednesday: A 20 percent chance of rain before 8am.  Cloudy, then gradually becoming mostly sunny, with a high near 43. Northwest wind 11 to 16 mph, with gusts as high as 24 mph.

    High: 43 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 31. West southwest wind 10 to 15 mph, with gusts as high as 23 mph.

    Low: 31 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 43. West wind 6 to 10 mph.

    High: 43 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 34. West wind 6 to 10 mph.

    Low: 34 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 50 percent chance of rain, mainly before 5am. Cloudy, with a low around 33. South wind around 10 mph becoming west northwest.
Wednesday
A 20 percent chance of rain before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 43. Northwest wind 11 to 16 mph, with gusts as high as 24 mph.
Wednesday Night
Partly cloudy, with a low around 31. West southwest wind 10 to 15 mph, with gusts as high as 23 mph.
Thursday
Mostly sunny, with a high near 43. West wind 6 to 10 mph.
Thursday Night
Mostly cloudy, with a low around 34. West wind 6 to 10 mph.
Friday
Partly sunny, with a high near 43.
Friday Night
Partly cloudy, with a low around 29.
Saturday
Mostly sunny, with a high near 42.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Mostly sunny, with a high near 42.
Sunday Night
Mostly cloudy, with a low around 29.
Monday
A 10 percent chance of rain. Partly sunny, with a high near 42.
Monday Night
A chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.
Tuesday
A 40 percent chance of snow. Partly sunny, with a high near 38.
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ABOUT THIS FORECAST

 
Point Forecast:
23 Miles NW Mackay ID
 44.17°N 113.88°W (Elev. 6821 ft)
10:31 pm MST Dec 9, 2025
12am MST Dec 10, 2025-6pm MST Dec 16, 2025
 
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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