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

Hailey, Friedman Memorial Airport (KSUN)

Lat: 43.5°NLon: 114.3°WElev: 5318.0ft.

Overcast

37°F

3°C

Humidity 86%
Wind Speed N 0 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 10 Dec 12:15 AM MST
Extended Forecast for

8 Miles ENE Sun Valley ID

  • Overnight

    Overnight: A 50 percent chance of snow, mainly before 5am.  Mostly cloudy, with a steady temperature around 30. West wind 14 to 17 mph, with gusts as high as 25 mph.  Total nighttime snow accumulation of less than a half inch possible.

    Low: 30 °F

    Chance Snow

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 38. West northwest wind 15 to 18 mph becoming southeast in the afternoon. Winds could gust as high as 26 mph.

    High: 38 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 23. East wind 15 to 17 mph becoming west northwest in the evening. Winds could gust as high as 25 mph.

    Low: 23 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 38. West northwest wind 9 to 14 mph, with gusts as high as 20 mph.

    High: 38 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 24. West northwest wind 9 to 11 mph.

    Low: 24 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

  • Friday Night

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

    Low: 22 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 21 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 50 percent chance of snow, mainly before 5am. Mostly cloudy, with a steady temperature around 30. West wind 14 to 17 mph, with gusts as high as 25 mph. Total nighttime snow accumulation of less than a half inch possible.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 38. West northwest wind 15 to 18 mph becoming southeast in the afternoon. Winds could gust as high as 26 mph.
Wednesday Night
Partly cloudy, with a low around 23. East wind 15 to 17 mph becoming west northwest in the evening. Winds could gust as high as 25 mph.
Thursday
Mostly sunny, with a high near 38. West northwest wind 9 to 14 mph, with gusts as high as 20 mph.
Thursday Night
Mostly cloudy, with a low around 24. West northwest wind 9 to 11 mph.
Friday
Mostly sunny, with a high near 37.
Friday Night
Partly cloudy, with a low around 22.
Saturday
Mostly sunny, with a high near 37.
Saturday Night
Partly cloudy, with a low around 21.
Sunday
Mostly sunny, with a high near 35.
Sunday Night
Mostly cloudy, with a low around 21.
Monday
A 20 percent chance of snow. Partly sunny, with a high near 34.
Monday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 23.
Tuesday
A 50 percent chance of snow. Partly sunny, with a high near 33.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles ENE Sun Valley ID
 43.75°N 114.19°W (Elev. 9357 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