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 86%
Wind Speed N 3 MPH
Barometer 30.16 in (1021.34 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 10 Dec 12:20 AM MST
Extended Forecast for

8 Miles NE Mackay ID

  • Overnight

    Overnight: A 40 percent chance of snow, mainly before 4am.  Mostly cloudy, with a low around 26. Breezy, with a west wind 20 to 26 mph, with gusts as high as 37 mph.  Total nighttime snow accumulation of less than one inch possible.

    Low: 26 °F

    Chance Snow
    and Breezy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 36. Windy, with a west wind 22 to 31 mph, with gusts as high as 45 mph.

    High: 36 °F

    Mostly Sunny
    and Windy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a steady temperature around 31. Breezy, with a west wind 23 to 26 mph, with gusts as high as 37 mph.

    Low: 31 °F

    Partly Cloudy
    and Breezy

  • Thursday

    Thursday: Sunny, with a high near 34. West wind 15 to 21 mph, with gusts as high as 31 mph.

    High: 34 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 29. West wind 15 to 18 mph, with gusts as high as 26 mph.

    Low: 29 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly 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 34.

    High: 34 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 23 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 40 percent chance of snow, mainly before 4am. Mostly cloudy, with a low around 26. Breezy, with a west wind 20 to 26 mph, with gusts as high as 37 mph. Total nighttime snow accumulation of less than one inch possible.
Wednesday
Mostly sunny, with a high near 36. Windy, with a west wind 22 to 31 mph, with gusts as high as 45 mph.
Wednesday Night
Partly cloudy, with a steady temperature around 31. Breezy, with a west wind 23 to 26 mph, with gusts as high as 37 mph.
Thursday
Sunny, with a high near 34. West wind 15 to 21 mph, with gusts as high as 31 mph.
Thursday Night
Mostly cloudy, with a low around 29. West wind 15 to 18 mph, with gusts as high as 26 mph.
Friday
Mostly sunny, with a high near 34.
Friday Night
Partly cloudy, with a low around 24.
Saturday
Mostly sunny, with a high near 34.
Saturday Night
Partly cloudy, with a low around 23.
Sunday
Mostly sunny, with a high near 33.
Sunday Night
Partly cloudy, with a low around 22.
Monday
A 20 percent chance of snow. Mostly sunny, with a high near 32.
Monday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 24.
Tuesday
A 50 percent chance of snow. Partly sunny, with a high near 30.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NE Mackay ID
 44.01°N 113.52°W (Elev. 9265 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