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 >

Current conditions at

PORPHYRY (PHYM8)

Lat: 46.83821°NLon: 110.71813°WElev: 8232.0ft.

NA

34°F

1°C

Humidity 96%
Wind Speed SW 9 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Wind Chill27°F (-3°C)
Last update 25 Dec 11:05 AM MST
Extended Forecast for

7 Miles ENE Neihart MT

  • Christmas Day

    Christmas Day: Sunny, with a high near 36. West southwest wind around 21 mph, with gusts as high as 32 mph.

    High: 36 °F

    Sunny

  • Tonight

    Tonight: A chance of snow between 11pm and 1am. Partly cloudy, with a low around 24. Breezy, with a southwest wind 24 to 26 mph, with gusts as high as 34 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    Low: 24 °F

    Chance Snow
    and Breezy

  • Friday

    Friday: A 40 percent chance of snow after 11am. Partly sunny, with a temperature rising to near 25 by 10am, then falling to around 19 during the remainder of the day. Breezy, with a southwest wind 22 to 26 mph, with gusts as high as 46 mph. New snow accumulation of less than one inch possible.

    High: 25 °F⇓

    Chance Snow
    and Breezy

  • Friday Night

    Friday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 5. Wind chill values as low as -5. Breezy, with a west southwest wind 25 to 29 mph, with gusts as high as 37 mph. New snow accumulation of less than one inch possible.

    Low: 5 °F

    Chance Snow
    and Breezy

  • Saturday

    Saturday: Snow. High near 13. Breezy, with a northwest wind 18 to 28 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    High: 13 °F

    Snow and
    Breezy

  • Saturday Night

    Saturday Night: A 20 percent chance of snow before 11pm. Partly cloudy, with a low around -6. Northwest wind 14 to 16 mph, with gusts as high as 23 mph.

    Low: -6 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 11. West southwest wind 14 to 16 mph, with gusts as high as 22 mph.

    High: 11 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 8. Breezy, with a southwest wind 17 to 23 mph, with gusts as high as 29 mph.

    Low: 8 °F

    Partly Cloudy
    and Breezy

  • Monday

    Monday: Mostly sunny, with a high near 24. Breezy.

    High: 24 °F

    Mostly Sunny
    and Breezy
    then Mostly
    Sunny

Detailed Forecast

Christmas Day
Sunny, with a high near 36. West southwest wind around 21 mph, with gusts as high as 32 mph.
Tonight
A chance of snow between 11pm and 1am. Partly cloudy, with a low around 24. Breezy, with a southwest wind 24 to 26 mph, with gusts as high as 34 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Friday
A 40 percent chance of snow after 11am. Partly sunny, with a temperature rising to near 25 by 10am, then falling to around 19 during the remainder of the day. Breezy, with a southwest wind 22 to 26 mph, with gusts as high as 46 mph. New snow accumulation of less than one inch possible.
Friday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 5. Wind chill values as low as -5. Breezy, with a west southwest wind 25 to 29 mph, with gusts as high as 37 mph. New snow accumulation of less than one inch possible.
Saturday
Snow. High near 13. Breezy, with a northwest wind 18 to 28 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Saturday Night
A 20 percent chance of snow before 11pm. Partly cloudy, with a low around -6. Northwest wind 14 to 16 mph, with gusts as high as 23 mph.
Sunday
Mostly sunny, with a high near 11. West southwest wind 14 to 16 mph, with gusts as high as 22 mph.
Sunday Night
Partly cloudy, with a low around 8. Breezy, with a southwest wind 17 to 23 mph, with gusts as high as 29 mph.
Monday
Mostly sunny, with a high near 24. Breezy.
Monday Night
Mostly cloudy, with a low around 20. Breezy.
Tuesday
Partly sunny, with a high near 29. Breezy.
Tuesday Night
A slight chance of snow. Mostly cloudy, with a low around 23. Breezy.
Wednesday
A slight chance of snow. Mostly cloudy, with a high near 29. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles ENE Neihart MT
 46.98°N 110.59°W (Elev. 8999 ft)
Last Update:
10:07 am MST Dec 25, 2025
Forecast Valid:
11am MST Dec 25, 2025-6pm MST Dec 31, 2025
 
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