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

7 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: Snow likely, mainly after 5pm.  Mostly cloudy, with a high near 24. South wind around 16 mph, with gusts as high as 23 mph.  Chance of precipitation is 60%. Total daytime snow accumulation of 1 to 2 inches possible.

    High: 24 °F

    Snow Likely

  • Tonight

    Tonight: Snow. The snow could be heavy at times.  Steady temperature around 21. Breezy, with a southwest wind 17 to 25 mph, with gusts as high as 32 mph.  Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

    Low: 21 °F

    Heavy Snow
    and Breezy

  • Friday

    Friday: Snow before 1pm, then a slight chance of snow after 4pm. The snow could be heavy at times.  Temperature falling to around 12 by 5pm. Wind chill values as low as -7. Windy, with a west southwest wind 22 to 30 mph, with gusts as high as 39 mph.  Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    High: 21 °F

    Heavy Snow
    and Windy
    then Slight
    Chance Snow
    and Breezy

  • Friday Night

    Friday Night: Snow likely, mainly after 11pm.  Mostly cloudy, with a low around 5. Wind chill values as low as -17. Windy, with a west southwest wind 22 to 31 mph, with gusts as high as 37 mph.  Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    Low: 5 °F

    Snow Likely
    and Windy

  • Saturday

    Saturday: Snow likely.  Mostly cloudy and cold, with a high near 8. Breezy, with a west northwest wind 24 to 29 mph decreasing to 18 to 23 mph in the afternoon. Winds could gust as high as 34 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 8 °F

    Snow Likely
    and Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around -6. Blustery.

    Low: -6 °F

    Partly Cloudy
    and Blustery

  • Sunday

    Sunday: Sunny and cold, with a high near 6.

    High: 6 °F

    Cold

  • Sunday Night

    Sunday Night: Mostly clear, with a low around -1.

    Low: -1 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 14.

    High: 14 °F

    Sunny

Detailed Forecast

Christmas Day
Snow likely, mainly after 5pm. Mostly cloudy, with a high near 24. South wind around 16 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. Total daytime snow accumulation of 1 to 2 inches possible.
Tonight
Snow. The snow could be heavy at times. Steady temperature around 21. Breezy, with a southwest wind 17 to 25 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.
Friday
Snow before 1pm, then a slight chance of snow after 4pm. The snow could be heavy at times. Temperature falling to around 12 by 5pm. Wind chill values as low as -7. Windy, with a west southwest wind 22 to 30 mph, with gusts as high as 39 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 5. Wind chill values as low as -17. Windy, with a west southwest wind 22 to 31 mph, with gusts as high as 37 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Saturday
Snow likely. Mostly cloudy and cold, with a high near 8. Breezy, with a west northwest wind 24 to 29 mph decreasing to 18 to 23 mph in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday Night
Partly cloudy, with a low around -6. Blustery.
Sunday
Sunny and cold, with a high near 6.
Sunday Night
Mostly clear, with a low around -1.
Monday
Sunny, with a high near 14.
Monday Night
Mostly cloudy, with a low around 7.
Tuesday
Partly sunny, with a high near 19.
Tuesday Night
Partly cloudy, with a low around 13.
Wednesday
Mostly sunny, with a high near 22.
Wednesday Night
Mostly cloudy, with a low around 17.
New Year's Day
Mostly cloudy, with a high near 23.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles WSW Mackay ID
 43.86°N 113.73°W (Elev. 10276 ft)
2:02 pm MST Dec 25, 2025
3pm MST Dec 25, 2025-6pm MST Jan 1, 2026
 
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Additional Resources

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