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

Hermiston, Hermiston Municipal Airport (KHRI)

Lat: 45.82583°NLon: 119.26111°WElev: 636.0ft.

Mostly Cloudy

43°F

6°C

Humidity 93%
Wind Speed WSW 3 MPH
Barometer 29.56 in (1001.02 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 24 Dec 02:20 PM PST
Extended Forecast for

Hermiston OR

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 51. West wind around 9 mph.

    High: 51 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 10 percent chance of rain after 4am.  Patchy fog after 1am.  Otherwise, mostly cloudy, with a low around 32. Southeast wind 5 to 7 mph becoming calm  after midnight.

    Low: 32 °F

    Partly Cloudy
    then Slight
    Chance Rain
    and Patchy
    Fog

  • Christmas Day

    Christmas Day: A chance of rain before 1pm, then a slight chance of rain after 4pm.  Patchy fog before 7am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 47. North wind 3 to 5 mph.  Chance of precipitation is 30%.

    High: 47 °F

    Chance Rain
    and Patchy
    Fog

  • Thursday Night

    Thursday Night: A 40 percent chance of rain, mainly after 7pm.  Mostly cloudy, with a low around 32. South wind around 6 mph.

    Low: 32 °F

    Chance Rain

  • Friday

    Friday: A 50 percent chance of rain.  Partly sunny, with a high near 48. Southwest wind 8 to 14 mph, with gusts as high as 24 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 48 °F

    Chance Rain

  • Friday Night

    Friday Night: A 40 percent chance of rain, mainly before 10pm.  Snow level 2200 feet lowering to 1300 feet after midnight . Partly cloudy, with a low around 31.

    Low: 31 °F

    Chance Rain

  • Saturday

    Saturday: Sunny, with a high near 44.

    High: 44 °F

    Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 4am.  Otherwise, mostly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 7am.  Otherwise, mostly sunny, with a high near 39.

    High: 39 °F

    Patchy Fog
    then Mostly
    Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 51. West wind around 9 mph.
Tonight
A 10 percent chance of rain after 4am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 32. Southeast wind 5 to 7 mph becoming calm after midnight.
Christmas Day
A chance of rain before 1pm, then a slight chance of rain after 4pm. Patchy fog before 7am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 47. North wind 3 to 5 mph. Chance of precipitation is 30%.
Thursday Night
A 40 percent chance of rain, mainly after 7pm. Mostly cloudy, with a low around 32. South wind around 6 mph.
Friday
A 50 percent chance of rain. Partly sunny, with a high near 48. Southwest wind 8 to 14 mph, with gusts as high as 24 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A 40 percent chance of rain, mainly before 10pm. Snow level 2200 feet lowering to 1300 feet after midnight . Partly cloudy, with a low around 31.
Saturday
Sunny, with a high near 44.
Saturday Night
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 24.
Sunday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 39.
Sunday Night
Partly cloudy, with a low around 22.
Monday
Partly sunny, with a high near 36.
Monday Night
Patchy fog. Otherwise, partly cloudy, with a low around 22.
Tuesday
Patchy fog. Otherwise, mostly sunny, with a high near 35.
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ABOUT THIS FORECAST

 
Point Forecast:
Hermiston OR
 45.84°N 119.25°W (Elev. 548 ft)
2:30 pm PST Dec 24, 2025
2pm PST Dec 24, 2025-6pm PST Dec 30, 2025
 
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Additional Resources

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