Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Current conditions at

Hailey, Friedman Memorial Airport (KSUN)

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

Partly Cloudy

30°F

-1°C

Humidity 42%
Wind Speed WNW 18 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 27 Dec 02:47 PM MST
Extended Forecast for

11 Miles ENE Sun Valley ID

  • This Afternoon

    This Afternoon: A 20 percent chance of snow before 4pm.  Partly sunny and cold, with a high near 8. Wind chill values as low as -28. Windy, with a northwest wind around 30 mph, with gusts as high as 43 mph.

    High: 8 °F

    Slight Chance
    Snow and
    Windy

  • Tonight

    Tonight: Partly cloudy, with a low around -5. Wind chill values as low as -31. Blustery, with a north wind 18 to 28 mph, with gusts as high as 33 mph.

    Low: -5 °F

    Partly Cloudy
    and Blustery

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny and cold, with a high near 10. Wind chill values as low as -26. North wind 6 to 16 mph.

    High: 10 °F

    Cold

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 2. Wind chill values as low as -15. North wind 7 to 11 mph becoming west after midnight.

    Low: 2 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 18. West wind 6 to 10 mph.

    High: 18 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 17.

    Low: 17 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 21.

    High: 21 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 15.

    Low: 15 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 25.

    High: 25 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of snow before 4pm. Partly sunny and cold, with a high near 8. Wind chill values as low as -28. Windy, with a northwest wind around 30 mph, with gusts as high as 43 mph.
Tonight
Partly cloudy, with a low around -5. Wind chill values as low as -31. Blustery, with a north wind 18 to 28 mph, with gusts as high as 33 mph.
Sunday
Partly sunny, then gradually becoming sunny and cold, with a high near 10. Wind chill values as low as -26. North wind 6 to 16 mph.
Sunday Night
Mostly clear, with a low around 2. Wind chill values as low as -15. North wind 7 to 11 mph becoming west after midnight.
Monday
Sunny, with a high near 18. West wind 6 to 10 mph.
Monday Night
Mostly clear, with a low around 17.
Tuesday
Mostly sunny, with a high near 21.
Tuesday Night
Partly cloudy, with a low around 15.
Wednesday
Sunny, with a high near 25.
Wednesday Night
Partly cloudy, with a low around 17.
New Year's Day
Mostly cloudy, with a high near 23.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 16.
Friday
A 50 percent chance of snow. Mostly cloudy, with a high near 19.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 9.
Saturday
A 30 percent chance of snow. Partly sunny, with a high near 14.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles ENE Sun Valley ID
 43.76°N 114.13°W (Elev. 11424 ft)
2:02 pm MST Dec 27, 2025
3pm MST Dec 27, 2025-6pm MST Jan 3, 2026
 
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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