Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Current conditions at

Hailey, Friedman Memorial Airport (KSUN)

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

Overcast

43°F

6°C

Humidity 86%
Wind Speed N 0 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 25 Dec 02:47 PM MST
Extended Forecast for

5 Miles WSW Mackay ID

Winter Storm Warning December 25, 11:00pm until December 27, 05:00am
Click here for hazard details and duration
Winter Storm Warning
  • Christmas Day

    Christmas Day: A 50 percent chance of snow.  Partly sunny, with a high near 27. South wind around 14 mph, with gusts as high as 21 mph.  Total daytime snow accumulation of less than one inch possible.

    High: 27 °F

    Chance Snow

  • Tonight

    Tonight: Snow. The snow could be heavy at times.  Steady temperature around 24. Breezy, with a southwest wind 16 to 22 mph, with gusts as high as 29 mph.  Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    Low: 24 °F

    Heavy Snow
    and Breezy

  • Friday

    Friday: Snow, mainly before 10am. The snow could be heavy at times.  Temperature falling to around 15 by 5pm. Wind chill values as low as -2. Breezy, with a west southwest wind 18 to 25 mph, with gusts as high as 36 mph.  Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    High: 24 °F

    Heavy Snow
    and Breezy
    then Slight
    Chance Snow

  • Friday Night

    Friday Night: Snow likely, mainly after 11pm.  Mostly cloudy, with a low around 9. Wind chill values as low as -11. Breezy, with a west southwest wind 18 to 25 mph, with gusts as high as 33 mph.  Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    Low: 9 °F

    Snow Likely
    and Breezy

  • Saturday

    Saturday: Snow likely.  Partly sunny, with a high near 11. Breezy, with a west wind 16 to 25 mph, with gusts as high as 31 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 11 °F

    Snow Likely
    and Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around -3. Blustery.

    Low: -3 °F

    Partly Cloudy
    and Blustery

  • Sunday

    Sunday: Sunny and cold, with a high near 8.

    High: 8 °F

    Cold

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 3.

    Low: 3 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 17.

    High: 17 °F

    Sunny

Detailed Forecast

Christmas Day
A 50 percent chance of snow. Partly sunny, with a high near 27. South wind around 14 mph, with gusts as high as 21 mph. Total daytime snow accumulation of less than one inch possible.
Tonight
Snow. The snow could be heavy at times. Steady temperature around 24. Breezy, with a southwest wind 16 to 22 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Friday
Snow, mainly before 10am. The snow could be heavy at times. Temperature falling to around 15 by 5pm. Wind chill values as low as -2. Breezy, with a west southwest wind 18 to 25 mph, with gusts as high as 36 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Friday Night
Snow likely, mainly after 11pm. Mostly cloudy, with a low around 9. Wind chill values as low as -11. Breezy, with a west southwest wind 18 to 25 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Saturday
Snow likely. Partly sunny, with a high near 11. Breezy, with a west wind 16 to 25 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday Night
Partly cloudy, with a low around -3. Blustery.
Sunday
Sunny and cold, with a high near 8.
Sunday Night
Mostly clear, with a low around 3.
Monday
Sunny, with a high near 17.
Monday Night
Mostly cloudy, with a low around 11.
Tuesday
Partly sunny, with a high near 23.
Tuesday Night
Partly cloudy, with a low around 17.
Wednesday
Mostly sunny, with a high near 26.
Wednesday Night
Mostly cloudy, with a low around 20.
New Year's Day
Partly sunny, with a high near 27.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Mackay ID
 43.89°N 113.71°W (Elev. 9701 ft)
2:02 pm MST Dec 25, 2025
3pm MST Dec 25, 2025-6pm MST Jan 1, 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