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

39°F

4°C

Humidity 64%
Wind Speed NNW 3 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 09 Dec 07:35 PM MST
Extended Forecast for

19 Miles SE Challis ID

  • Tonight

    Tonight: Snow likely, mainly between 1am and 3am.  Cloudy, with a temperature rising to around 30 by 4am. Breezy, with a west wind 14 to 23 mph, with gusts as high as 33 mph.  Chance of precipitation is 60%. Total nighttime snow accumulation of 1 to 3 inches possible.

    Low: 26 °F

    Snow Likely
    and Breezy

  • Wednesday

    Wednesday: A 20 percent chance of snow before 8am.  Cloudy, then gradually becoming mostly sunny, with a temperature rising to near 32 by 8am, then falling to around 28 during the remainder of the day. Breezy, with a west wind 21 to 24 mph, with gusts as high as 34 mph.

    High: 32 °F

    Breezy.
    Slight Chance
    Snow then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 24. Breezy, with a west southwest wind 20 to 22 mph, with gusts as high as 32 mph.

    Low: 24 °F

    Partly Cloudy
    and Breezy

  • Thursday

    Thursday: Mostly sunny, with a high near 30. West southwest wind 15 to 18 mph, with gusts as high as 28 mph.

    High: 30 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 27. West southwest wind around 15 mph, with gusts as high as 22 mph.

    Low: 27 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 30.

    High: 30 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

Detailed Forecast

Tonight
Snow likely, mainly between 1am and 3am. Cloudy, with a temperature rising to around 30 by 4am. Breezy, with a west wind 14 to 23 mph, with gusts as high as 33 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. Cloudy, then gradually becoming mostly sunny, with a temperature rising to near 32 by 8am, then falling to around 28 during the remainder of the day. Breezy, with a west wind 21 to 24 mph, with gusts as high as 34 mph.
Wednesday Night
Partly cloudy, with a low around 24. Breezy, with a west southwest wind 20 to 22 mph, with gusts as high as 32 mph.
Thursday
Mostly sunny, with a high near 30. West southwest wind 15 to 18 mph, with gusts as high as 28 mph.
Thursday Night
Mostly cloudy, with a low around 27. West southwest wind around 15 mph, with gusts as high as 22 mph.
Friday
Partly sunny, with a high near 31.
Friday Night
Partly cloudy, with a low around 23.
Saturday
Mostly sunny, with a high near 30.
Saturday Night
Partly cloudy, with a low around 22.
Sunday
Mostly sunny, with a high near 30.
Sunday Night
Mostly cloudy, with a low around 23.
Monday
A 20 percent chance of snow. Partly sunny, with a high near 29.
Monday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 25.
Tuesday
A 40 percent chance of snow. Partly sunny, with a high near 28.
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ABOUT THIS FORECAST

 
Point Forecast:
19 Miles SE Challis ID
 44.34°N 113.92°W (Elev. 9573 ft)
4:31 pm MST Dec 9, 2025
7pm MST Dec 9, 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