Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

Hailey, Friedman Memorial Airport (KSUN)

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

Overcast

36°F

2°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 30.25 in (1024.38 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 08 Dec 06:55 PM MST
Extended Forecast for

19 Miles ENE Sun Valley ID

  • Tonight

    Tonight: A slight chance of snow before 11pm, then a chance of snow after midnight.  Mostly cloudy, with a temperature rising to around 26 by 3am. Windy, with a west wind 20 to 25 mph increasing to 27 to 32 mph after midnight. Winds could gust as high as 46 mph.  Chance of precipitation is 40%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 21 °F

    Chance Snow
    and Windy

  • Tuesday

    Tuesday: A 40 percent chance of snow.  Mostly cloudy, with a temperature falling to around 23 by 5pm. Windy, with a west wind 21 to 30 mph, with gusts as high as 44 mph.  New snow accumulation of less than a half inch possible.

    High: 27 °F

    Chance Snow
    and Windy

  • Tuesday Night

    Tuesday Night: Snow likely, mainly after 11pm.  Mostly cloudy, with a temperature rising to around 29 by 5am. Windy, with a west wind 20 to 30 mph, with gusts as high as 40 mph.  Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 24 °F

    Snow Likely
    and Windy

  • Wednesday

    Wednesday: A 40 percent chance of snow, mainly before 11am.  Partly sunny, with a high near 30. Breezy, with a west wind 20 to 25 mph, with gusts as high as 37 mph.  New snow accumulation of less than a half inch possible.

    High: 30 °F

    Chance Snow
    and Breezy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow before 11pm.  Mostly cloudy, with a low around 25. Blustery, with a west northwest wind 18 to 25 mph, with gusts as high as 32 mph.

    Low: 25 °F

    Blustery.
    Slight Chance
    Snow then
    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 28. Blustery.

    High: 28 °F

    Mostly Sunny
    and Blustery
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 28.

    High: 28 °F

    Partly Sunny

  • Friday Night

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

    Low: 21 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of snow before 11pm, then a chance of snow after midnight. Mostly cloudy, with a temperature rising to around 26 by 3am. Windy, with a west wind 20 to 25 mph increasing to 27 to 32 mph after midnight. Winds could gust as high as 46 mph. Chance of precipitation is 40%. Total nighttime snow accumulation of less than a half inch possible.
Tuesday
A 40 percent chance of snow. Mostly cloudy, with a temperature falling to around 23 by 5pm. Windy, with a west wind 21 to 30 mph, with gusts as high as 44 mph. New snow accumulation of less than a half inch possible.
Tuesday Night
Snow likely, mainly after 11pm. Mostly cloudy, with a temperature rising to around 29 by 5am. Windy, with a west wind 20 to 30 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Wednesday
A 40 percent chance of snow, mainly before 11am. Partly sunny, with a high near 30. Breezy, with a west wind 20 to 25 mph, with gusts as high as 37 mph. New snow accumulation of less than a half inch possible.
Wednesday Night
A 20 percent chance of snow before 11pm. Mostly cloudy, with a low around 25. Blustery, with a west northwest wind 18 to 25 mph, with gusts as high as 32 mph.
Thursday
Mostly sunny, with a high near 28. Blustery.
Thursday Night
Mostly cloudy, with a low around 24.
Friday
Partly sunny, with a high near 28.
Friday Night
Partly cloudy, with a low around 21.
Saturday
Mostly sunny, with a high near 28.
Saturday Night
Partly cloudy, with a low around 20.
Sunday
A 20 percent chance of snow. Mostly sunny, with a high near 25.
Sunday Night
Mostly cloudy, with a low around 19.
Monday
A 30 percent chance of snow. Partly sunny, with a high near 24.
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ABOUT THIS FORECAST

 
Point Forecast:
19 Miles ENE Sun Valley ID
 43.79°N 113.99°W (Elev. 10863 ft)
4:32 pm MST Dec 8, 2025
7pm MST Dec 8, 2025-6pm MST Dec 15, 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