National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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 >

Hazardous Weather Conditions

Current conditions at

TROY (TROM8)

Lat: 48.48165°NLon: 115.90507°WElev: 2009.0ft.

NA

31°F

-1°C

Humidity 100%
Wind Speed WSW 0 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 26 Dec 04:07 AM MST
Extended Forecast for

10 Miles SSW Yaak MT

Winter Weather Advisory December 26, 12:00pm until December 27, 05:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Today

    Today: Snow, mainly before 3pm. The snow could be heavy at times. Areas of blowing snow before 3pm, then patchy blowing snow after 5pm. High near 27. South southwest wind 8 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 4 to 8 inches possible.

    High: 27 °F

    Heavy Snow
    and Areas
    Blowing Snow

  • Tonight

    Tonight: Snow, mainly before 2am. The snow could be heavy at times. Widespread blowing snow, mainly before 2am. Low around 13. Wind chill values as low as -3. Windy, with a southwest wind 23 to 30 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 13 °F

    Heavy Snow
    and Blowing
    Snow

  • Saturday

    Saturday: Snow likely, mainly before 11am. Areas of blowing snow before 8am. Mostly cloudy, with a temperature falling to around 10 by 5pm. Wind chill values as low as -4. Breezy, with a southwest wind 18 to 23 mph becoming northwest 8 to 13 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 17 °F⇓

    Snow Likely
    and Areas
    Blowing Snow
    then Chance
    Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 5. Wind chill values as low as -4. North wind 6 to 8 mph.

    Low: 5 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 14. West southwest wind 3 to 5 mph.

    High: 14 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 10.

    Low: 10 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 19.

    High: 19 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 15.

    Low: 15 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 23.

    High: 23 °F

    Mostly Cloudy

Detailed Forecast

Today
Snow, mainly before 3pm. The snow could be heavy at times. Areas of blowing snow before 3pm, then patchy blowing snow after 5pm. High near 27. South southwest wind 8 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 4 to 8 inches possible.
Tonight
Snow, mainly before 2am. The snow could be heavy at times. Widespread blowing snow, mainly before 2am. Low around 13. Wind chill values as low as -3. Windy, with a southwest wind 23 to 30 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Saturday
Snow likely, mainly before 11am. Areas of blowing snow before 8am. Mostly cloudy, with a temperature falling to around 10 by 5pm. Wind chill values as low as -4. Breezy, with a southwest wind 18 to 23 mph becoming northwest 8 to 13 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Saturday Night
Mostly cloudy, with a low around 5. Wind chill values as low as -4. North wind 6 to 8 mph.
Sunday
Partly sunny, with a high near 14. West southwest wind 3 to 5 mph.
Sunday Night
Mostly cloudy, with a low around 10.
Monday
Mostly cloudy, with a high near 19.
Monday Night
Mostly cloudy, with a low around 15.
Tuesday
Mostly cloudy, with a high near 23.
Tuesday Night
Mostly cloudy, with a low around 18.
Wednesday
A chance of snow. Mostly cloudy, with a high near 24.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 21.
New Year's Day
Snow likely. Cloudy, with a high near 25.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles SSW Yaak MT
 48.7°N 115.78°W (Elev. 5945 ft)
Last Update:
1:03 am MST Dec 26, 2025
Forecast Valid:
5am MST Dec 26, 2025-6pm MST Jan 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation