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 0 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 10 Dec 01:05 AM MST
Extended Forecast for

9 Miles NNW Mackay ID

  • Overnight

    Overnight: Snow likely, mainly before 3am.  Mostly cloudy, with a low around 22. West wind 16 to 21 mph, with gusts as high as 28 mph.  Chance of precipitation is 60%. Total nighttime snow accumulation of 1 to 2 inches possible.

    Low: 22 °F

    Snow Likely

  • Wednesday

    Wednesday: A 10 percent chance of snow before 7am.  Mostly cloudy, then gradually becoming sunny, with a temperature rising to near 30 by 9am, then falling to around 26 during the remainder of the day. Blustery, with a west northwest wind 15 to 22 mph, with gusts as high as 30 mph.

    High: 30 °F

    Slight Chance
    Snow and
    Blustery then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a steady temperature around 26. Breezy, with a west wind 18 to 25 mph, with gusts as high as 29 mph.

    Low: 26 °F

    Partly Cloudy
    and Breezy

  • Thursday

    Thursday: Mostly sunny, with a high near 27. Breezy, with a west wind 15 to 24 mph, with gusts as high as 30 mph.

    High: 27 °F

    Sunny and
    Breezy then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 23. West wind 15 to 18 mph, with gusts as high as 24 mph.

    Low: 23 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 27.

    High: 27 °F

    Partly Sunny

  • Friday Night

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

    Low: 21 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 19.

    Low: 19 °F

    Partly Cloudy

Detailed Forecast

Overnight
Snow likely, mainly before 3am. Mostly cloudy, with a low around 22. West wind 16 to 21 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of 1 to 2 inches possible.
Wednesday
A 10 percent chance of snow before 7am. Mostly cloudy, then gradually becoming sunny, with a temperature rising to near 30 by 9am, then falling to around 26 during the remainder of the day. Blustery, with a west northwest wind 15 to 22 mph, with gusts as high as 30 mph.
Wednesday Night
Partly cloudy, with a steady temperature around 26. Breezy, with a west wind 18 to 25 mph, with gusts as high as 29 mph.
Thursday
Mostly sunny, with a high near 27. Breezy, with a west wind 15 to 24 mph, with gusts as high as 30 mph.
Thursday Night
Mostly cloudy, with a low around 23. West wind 15 to 18 mph, with gusts as high as 24 mph.
Friday
Partly sunny, with a high near 27.
Friday Night
Partly cloudy, with a low around 21.
Saturday
Mostly sunny, with a high near 29.
Saturday Night
Partly cloudy, with a low around 19.
Sunday
Mostly sunny, with a high near 28.
Sunday Night
Partly cloudy, with a low around 20.
Monday
Partly sunny, with a high near 27.
Monday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 22.
Tuesday
A 50 percent chance of snow. Mostly cloudy, with a high near 25.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles NNW Mackay ID
 44.05°N 113.65°W (Elev. 11194 ft)
1:02 am MST Dec 10, 2025
1am MST Dec 10, 2025-6pm MST Dec 16, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database