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.

Partly Cloudy

45°F

7°C

Humidity 75%
Wind Speed NE 6 MPH
Barometer 29.48 in (998.31 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 25 Dec 04:20 AM PST
Extended Forecast for

8 Miles NNW Necanicum OR

  • Overnight

    Overnight: A 30 percent chance of rain. Mostly cloudy, with a low around 38. East wind around 6 mph, with gusts as high as 20 mph.

    Low: 38 °F

    Chance Rain

  • Christmas Day

    Christmas Day: Rain, mainly before 4pm. High near 49. South southeast wind around 7 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 49 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly after 2am. Increasing clouds, with a low around 39. South wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 39 °F

    Chance Rain
    then Rain
    Likely

  • Friday

    Friday: Showers. Snow level 3200 feet lowering to 2100 feet in the afternoon . High near 44. South wind 6 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 44 °F

    Showers

  • Friday Night

    Friday Night: Rain and snow showers before 4am, then a chance of rain showers. Snow level 1600 feet. Low around 37. West wind around 10 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 37 °F

    Rain/Snow

  • Saturday

    Saturday: A chance of rain showers before 7am, then a chance of rain and snow showers. Snow level 1500 feet. Mostly cloudy, with a high near 43. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 43 °F

    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Patchy fog before 4am, then patchy fog after 5am. Otherwise, mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 44.

    High: 44 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Sunday Night

    Sunday Night: Patchy fog between 9pm and 11pm. Otherwise, mostly cloudy, with a low around 35.

    Low: 35 °F

    Patchy Fog
    then Mostly
    Cloudy

Detailed Forecast

Overnight
A 30 percent chance of rain. Mostly cloudy, with a low around 38. East wind around 6 mph, with gusts as high as 20 mph.
Christmas Day
Rain, mainly before 4pm. High near 49. South southeast wind around 7 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain likely, mainly after 2am. Increasing clouds, with a low around 39. South wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Showers. Snow level 3200 feet lowering to 2100 feet in the afternoon . High near 44. South wind 6 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Rain and snow showers before 4am, then a chance of rain showers. Snow level 1600 feet. Low around 37. West wind around 10 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Saturday
A chance of rain showers before 7am, then a chance of rain and snow showers. Snow level 1500 feet. Mostly cloudy, with a high near 43. Chance of precipitation is 30%. Little or no snow accumulation expected.
Saturday Night
Patchy fog before 4am, then patchy fog after 5am. Otherwise, mostly cloudy, with a low around 34.
Sunday
Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 44.
Sunday Night
Patchy fog between 9pm and 11pm. Otherwise, mostly cloudy, with a low around 35.
Monday
Partly sunny, with a high near 47.
Monday Night
Mostly cloudy, with a low around 36.
Tuesday
Mostly cloudy, with a high near 49.
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 49.
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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:
3:45 am PST Dec 25, 2025
Forecast Valid:
4am PST Dec 25, 2025-6pm PST Dec 31, 2025
 
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Additional Resources

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Chance of Precipitation