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

Alpine (K46U)

Lat: 43.1846°NLon: 111.0424°WElev: 5634.0ft.

Overcast

48°F

9°C

Humidity NA
Wind Speed SE 10 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint N/A
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update NA
Extended Forecast for

2 Miles NW Alpine WY

  • Tonight

    Tonight: Showers, with thunderstorms also possible after 2am. Low around 34. Breezy, with a south southeast wind 10 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 34 °F

    Showers and
    Breezy

  • Christmas Day

    Christmas Day: Scattered showers and thunderstorms before 11am, then scattered showers between 11am and 2pm, then scattered showers and thunderstorms after 2pm. Mostly cloudy, with a high near 45. South wind around 9 mph. Chance of precipitation is 50%.

    High: 45 °F

    Scattered
    Showers

  • Thursday Night

    Thursday Night: Rain showers before 2am, then rain, possibly mixed with snow showers. Some thunder is also possible. Low around 37. South wind 8 to 10 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 37 °F

    Showers then
    Rain/Snow

  • Friday

    Friday: Rain and snow showers. Some thunder is also possible. High near 39. South southwest wind 10 to 13 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Rain/Snow

  • Friday Night

    Friday Night: Snow showers. Low around 26. Southwest wind around 10 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Low: 26 °F

    Snow Showers

  • Saturday

    Saturday: Snow showers. Some thunder is also possible. High near 33. Southwest wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    High: 33 °F

    Snow Showers

  • Saturday Night

    Saturday Night: A 40 percent chance of snow showers before 11pm. Mostly cloudy, with a low around 11. West wind 5 to 9 mph.

    Low: 11 °F

    Chance Snow
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 28.

    High: 28 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 9.

    Low: 9 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers, with thunderstorms also possible after 2am. Low around 34. Breezy, with a south southeast wind 10 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Christmas Day
Scattered showers and thunderstorms before 11am, then scattered showers between 11am and 2pm, then scattered showers and thunderstorms after 2pm. Mostly cloudy, with a high near 45. South wind around 9 mph. Chance of precipitation is 50%.
Thursday Night
Rain showers before 2am, then rain, possibly mixed with snow showers. Some thunder is also possible. Low around 37. South wind 8 to 10 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Friday
Rain and snow showers. Some thunder is also possible. High near 39. South southwest wind 10 to 13 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Friday Night
Snow showers. Low around 26. Southwest wind around 10 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Saturday
Snow showers. Some thunder is also possible. High near 33. Southwest wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Saturday Night
A 40 percent chance of snow showers before 11pm. Mostly cloudy, with a low around 11. West wind 5 to 9 mph.
Sunday
Mostly sunny, with a high near 28.
Sunday Night
Mostly clear, with a low around 9.
Monday
Sunny, with a high near 33.
Monday Night
Mostly clear, with a low around 14.
Tuesday
Mostly sunny, with a high near 38.
Tuesday Night
Mostly clear, with a low around 17.
Wednesday
Sunny, with a high near 41.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Alpine WY
 43.18°N 111.03°W (Elev. 5699 ft)
Last Update:
9:17 pm MST Dec 24, 2025
Forecast Valid:
10pm MST Dec 24, 2025-6pm MST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation