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

Ken Jernstedt Airfield (K4S2)

Lat: 45.67457°NLon: 121.53493°WElev: 600.0ft.

Overcast

36°F

2°C

Humidity 93%
Wind Speed SSW 4 MPH
Barometer 29.66 in (1004.4 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 24 Dec 08:55 PM PST
Extended Forecast for

2 Miles E Mosier OR

  • Tonight

    Tonight: A 30 percent chance of rain, mainly after 4am.  Patchy fog before 1am, then patchy fog after 4am.  Otherwise, increasing clouds, with a steady temperature around 38. Light and variable wind.

    Low: 38 °F

    Patchy Fog
    then Chance
    Rain and
    Patchy Fog

  • Christmas Day

    Christmas Day: Rain likely, mainly between 7am and 4pm.  Patchy fog before 7am, then patchy fog after 1pm.  Otherwise, mostly cloudy, with a high near 45. Light east wind.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 45 °F

    Rain Likely
    and Patchy
    Fog

  • Thursday Night

    Thursday Night: Rain likely, mainly after 10pm.  Patchy fog.  Otherwise, mostly cloudy, with a low around 36. Calm wind.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Rain Likely
    and Patchy
    Fog

  • Friday

    Friday: Rain.  High near 44. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 44 °F

    Rain

  • Friday Night

    Friday Night: Rain likely, mainly before 10pm.  Snow level 1600 feet. Mostly cloudy, with a low around 36. West wind around 15 mph, with gusts as high as 32 mph.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Rain Likely
    then Chance
    Rain

  • Saturday

    Saturday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Sunday

    Sunday: Patchy fog before 1pm.  Otherwise, partly sunny, with a high near 41.

    High: 41 °F

    Patchy Fog

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of rain, mainly after 4am. Patchy fog before 1am, then patchy fog after 4am. Otherwise, increasing clouds, with a steady temperature around 38. Light and variable wind.
Christmas Day
Rain likely, mainly between 7am and 4pm. Patchy fog before 7am, then patchy fog after 1pm. Otherwise, mostly cloudy, with a high near 45. Light east wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain likely, mainly after 10pm. Patchy fog. Otherwise, mostly cloudy, with a low around 36. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain. High near 44. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Rain likely, mainly before 10pm. Snow level 1600 feet. Mostly cloudy, with a low around 36. West wind around 15 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Partly sunny, with a high near 43.
Saturday Night
Mostly cloudy, with a low around 29.
Sunday
Patchy fog before 1pm. Otherwise, partly sunny, with a high near 41.
Sunday Night
Mostly cloudy, with a low around 27.
Monday
Partly sunny, with a high near 39.
Monday Night
Partly cloudy, with a low around 28.
Tuesday
Partly sunny, with a high near 40.
Tuesday Night
Partly cloudy, with a low around 30.
Wednesday
A slight chance of rain. Patchy fog. Otherwise, mostly sunny, with a high near 41.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Mosier OR
 45.69°N 121.35°W (Elev. 607 ft)
9:15 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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