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

Astoria, Astoria Regional Airport (KAST)

Lat: 46.15694°NLon: 123.8825°WElev: 10.0ft.

Clear

36°F

2°C

Humidity 100%
Wind Speed ENE 5 MPH
Barometer 29.62 in (1003.05 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 26 Dec 01:20 AM PST
Extended Forecast for

8 Miles NNW Necanicum OR

  • Overnight

    Overnight: A 40 percent chance of rain. Mostly cloudy, with a low around 38. South wind 3 to 5 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Chance Rain

  • Friday

    Friday: Rain showers before 5pm, then rain likely, possibly mixed with snow showers. Snow level 3200 feet lowering to 2000 feet in the afternoon . High near 44. West wind 6 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 44 °F

    Showers then
    Rain/Snow

  • Friday Night

    Friday Night: Rain and snow showers likely before 10pm, then rain showers likely between 10pm and midnight, then a chance of rain and snow showers after midnight. Some thunder is also possible. Snow level 1700 feet. Mostly cloudy, with a low around 36. West northwest wind around 11 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 36 °F

    Rain/Snow
    Likely

  • Saturday

    Saturday: A chance of rain and snow showers, mainly before 10am. Snow level 1600 feet. Mostly cloudy, with a high near 42. West northwest wind around 7 mph, with gusts as high as 22 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 42 °F

    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Areas of frost after 4am. Otherwise, mostly cloudy, with a low around 35. Calm wind.

    Low: 35 °F

    Mostly Cloudy
    then Areas
    Frost

  • Sunday

    Sunday: Areas of frost before 9am. Otherwise, partly sunny, with a high near 44.

    High: 44 °F

    Areas Frost
    then Mostly
    Cloudy

  • Sunday Night

    Sunday Night: Areas of frost after 1am. Otherwise, mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy
    then Areas
    Frost

  • Monday

    Monday: Areas of frost before 9am. Otherwise, partly sunny, with a high near 46.

    High: 46 °F

    Areas Frost
    then Partly
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 40 percent chance of rain. Mostly cloudy, with a low around 38. South wind 3 to 5 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain showers before 5pm, then rain likely, possibly mixed with snow showers. Snow level 3200 feet lowering to 2000 feet in the afternoon . High near 44. West wind 6 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Friday Night
Rain and snow showers likely before 10pm, then rain showers likely between 10pm and midnight, then a chance of rain and snow showers after midnight. Some thunder is also possible. Snow level 1700 feet. Mostly cloudy, with a low around 36. West northwest wind around 11 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Saturday
A chance of rain and snow showers, mainly before 10am. Snow level 1600 feet. Mostly cloudy, with a high near 42. West northwest wind around 7 mph, with gusts as high as 22 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Saturday Night
Areas of frost after 4am. Otherwise, mostly cloudy, with a low around 35. Calm wind.
Sunday
Areas of frost before 9am. Otherwise, partly sunny, with a high near 44.
Sunday Night
Areas of frost after 1am. Otherwise, mostly cloudy, with a low around 34.
Monday
Areas of frost before 9am. Otherwise, partly sunny, with a high near 46.
Monday Night
Mostly cloudy, with a low around 36.
Tuesday
Partly sunny, with a high near 48.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 38.
Wednesday
A chance of rain. Mostly cloudy, with a high near 48.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 40.
New Year's Day
Rain. Cloudy, with a high near 47.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NNW Necanicum OR
 46.01°N 123.78°W (Elev. 1207 ft)
Last Update:
1:15 am PST Dec 26, 2025
Forecast Valid:
1am PST Dec 26, 2025-6pm PST Jan 1, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation