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

Winchester (ITD41)

Lat: 46.25521°NLon: 116.6051°WElev: 3761.0ft.

Rain

41°F

5°C

Humidity 97%
Wind Speed NW 1 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility 1.24 mi
Last update 24 Dec 09:30 PM PST
Extended Forecast for

10 Miles SSW Winchester ID

  • Tonight

    Tonight: A 50 percent chance of rain, mainly before 10pm.  Snow level 6300 feet lowering to 5600 feet after midnight . Mostly cloudy, with a low around 33. Light and variable wind.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 33 °F

    Chance Rain
    then Slight
    Chance Rain

  • Christmas Day

    Christmas Day: A 20 percent chance of rain after 1pm.  Snow level 5800 feet. Partly sunny, with a high near 42. South wind around 7 mph.

    High: 42 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Thursday Night

    Thursday Night: A chance of rain before 10pm, then a chance of rain and snow between 10pm and 1am, then snow likely after 1am.  Snow level 5300 feet lowering to 4600 feet after midnight . Mostly cloudy, with a low around 31. South wind around 7 mph, with gusts as high as 18 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Rain/Snow
    Likely

  • Friday

    Friday: Snow.  High near 38. Southwest wind 7 to 11 mph, with gusts as high as 24 mph.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Snow

  • Friday Night

    Friday Night: Snow, mainly before 4am.  Low around 24. West wind 11 to 14 mph, with gusts as high as 32 mph.  Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 24 °F

    Snow

  • Saturday

    Saturday: A 50 percent chance of snow, mainly before 10am.  Mostly cloudy, with a high near 29. New snow accumulation of less than a half inch possible.

    High: 29 °F

    Chance Snow
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 18.

    Low: 18 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 50 percent chance of rain, mainly before 10pm. Snow level 6300 feet lowering to 5600 feet after midnight . Mostly cloudy, with a low around 33. Light and variable wind. New precipitation amounts of less than a tenth of an inch possible.
Christmas Day
A 20 percent chance of rain after 1pm. Snow level 5800 feet. Partly sunny, with a high near 42. South wind around 7 mph.
Thursday Night
A chance of rain before 10pm, then a chance of rain and snow between 10pm and 1am, then snow likely after 1am. Snow level 5300 feet lowering to 4600 feet after midnight . Mostly cloudy, with a low around 31. South wind around 7 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday
Snow. High near 38. Southwest wind 7 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Friday Night
Snow, mainly before 4am. Low around 24. West wind 11 to 14 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Saturday
A 50 percent chance of snow, mainly before 10am. Mostly cloudy, with a high near 29. New snow accumulation of less than a half inch possible.
Saturday Night
Mostly cloudy, with a low around 18.
Sunday
Mostly sunny, with a high near 29.
Sunday Night
Partly cloudy, with a low around 18.
Monday
Partly sunny, with a high near 32.
Monday Night
Mostly cloudy, with a low around 23.
Tuesday
Partly sunny, with a high near 37.
Tuesday Night
Mostly cloudy, with a low around 25.
Wednesday
Mostly sunny, with a high near 38.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles SSW Winchester ID
 46.1°N 116.68°W (Elev. 4600 ft)
9:17 pm PST Dec 24, 2025
9pm PST Dec 24, 2025-6pm PST Dec 31, 2025
 
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Additional Resources

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