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 80%
Wind Speed WNW 4 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 09 Dec 11:30 PM MST
Extended Forecast for

32 Miles NE Mackay ID

  • Tonight

    Tonight: Snow likely, mainly before 3am.  Mostly cloudy, with a low around 25. West wind 13 to 20 mph, with gusts as high as 28 mph.  Chance of precipitation is 60%. Total nighttime snow accumulation of 1 to 3 inches possible.

    Low: 25 °F

    Snow Likely

  • Wednesday

    Wednesday: A 20 percent chance of snow before 8am.  Partly sunny, with a high near 34. Breezy, with a west wind 18 to 25 mph, with gusts as high as 36 mph.

    High: 34 °F

    Slight Chance
    Snow and
    Breezy then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 26. West wind 18 to 20 mph, with gusts as high as 28 mph.

    Low: 26 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 34. West wind 14 to 16 mph, with gusts as high as 24 mph.

    High: 34 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 29. West wind around 14 mph, with gusts as high as 21 mph.

    Low: 29 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 34.

    High: 34 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 21.

    Low: 21 °F

    Partly Cloudy

Detailed Forecast

Tonight
Snow likely, mainly before 3am. Mostly cloudy, with a low around 25. West wind 13 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of 1 to 3 inches possible.
Wednesday
A 20 percent chance of snow before 8am. Partly sunny, with a high near 34. Breezy, with a west wind 18 to 25 mph, with gusts as high as 36 mph.
Wednesday Night
Partly cloudy, with a low around 26. West wind 18 to 20 mph, with gusts as high as 28 mph.
Thursday
Mostly sunny, with a high near 34. West wind 14 to 16 mph, with gusts as high as 24 mph.
Thursday Night
Mostly cloudy, with a low around 29. West wind around 14 mph, with gusts as high as 21 mph.
Friday
Partly sunny, with a high near 34.
Friday Night
Partly cloudy, with a low around 24.
Saturday
Mostly sunny, with a high near 32.
Saturday Night
Partly cloudy, with a low around 21.
Sunday
Mostly sunny, with a high near 31.
Sunday Night
Partly cloudy, with a low around 21.
Monday
Mostly sunny, with a high near 30.
Monday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 23.
Tuesday
A 50 percent chance of snow. Partly sunny, with a high near 30.
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ABOUT THIS FORECAST

 
Point Forecast:
32 Miles NE Mackay ID
 44.2°N 113.13°W (Elev. 9150 ft)
10:31 pm MST Dec 9, 2025
11pm MST Dec 9, 2025-6pm MST Dec 16, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database