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

I84 EB at Charles Reynolds Rest Area MP269.28 (ODT18)

Lat: 45.23381°NLon: 118.01328°WElev: 2874.0ft.

NA

44°F

7°C

Humidity 75%
Wind Speed SSW 5 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Wind Chill41°F (5°C)
Last update 26 Dec 02:20 AM PST
Extended Forecast for

17 Miles WSW La Grande OR

  • Overnight

    Overnight: Snow likely, possibly mixed with rain, mainly after 4am. Snow level 4500 feet. Mostly cloudy, with a steady temperature around 36. South wind around 5 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 36 °F

    Rain/Snow
    Likely

  • Friday

    Friday: Snow likely, possibly mixed with rain before 7am, then snow. High near 39. Southwest wind around 8 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Rain/Snow
    Likely then
    Snow

  • Friday Night

    Friday Night: Snow. Low around 23. West wind around 14 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 23 °F

    Snow

  • Saturday

    Saturday: Snow. High near 27. Northwest wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.

    High: 27 °F

    Snow then
    Snow Likely

  • Saturday Night

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

    Low: 18 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 20.

    Low: 20 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Snow likely, possibly mixed with rain, mainly after 4am. Snow level 4500 feet. Mostly cloudy, with a steady temperature around 36. South wind around 5 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.
Friday
Snow likely, possibly mixed with rain before 7am, then snow. High near 39. Southwest wind around 8 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Friday Night
Snow. Low around 23. West wind around 14 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Saturday
Snow. High near 27. Northwest wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.
Saturday Night
Mostly cloudy, with a low around 18. Calm wind.
Sunday
Mostly sunny, with a high near 32.
Sunday Night
Mostly clear, with a low around 20.
Monday
Mostly sunny, with a high near 37.
Monday Night
Mostly cloudy, with a low around 24.
Tuesday
Partly sunny, with a high near 40.
Tuesday Night
Mostly cloudy, with a low around 27.
Wednesday
Partly sunny, with a high near 42.
Wednesday Night
A slight chance of snow. Mostly cloudy, with a low around 29.
New Year's Day
A chance of snow. Mostly cloudy, with a high near 40.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles WSW La Grande OR
 45.21°N 118.38°W (Elev. 4081 ft)
Last Update:
2:31 am PST Dec 26, 2025
Forecast Valid:
2am PST Dec 26, 2025-6pm PST Jan 1, 2026
 
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Additional Resources

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Chance of Precipitation