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 >

Hazardous Weather Conditions

Current conditions at

MERLIN (MLFO3)

Lat: 42.49975°NLon: 123.36917°WElev: 1144.0ft.

NA

39°F

4°C

Humidity 100%
Wind Speed ESE 1 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Last update 25 Dec 04:58 AM PST
Extended Forecast for

12 Miles ESE Agness OR

Wind Advisory December 25, 09:00am until December 25, 01:00pm
Click here for hazard details and duration
Wind Advisory

  • Overnight

    Overnight: Showers. Snow level 5000 feet. Low around 40. East southeast wind around 9 mph. Chance of precipitation is 80%.

    Low: 40 °F

    Showers

  • Christmas Day

    Christmas Day: Rain and snow showers, mainly before 4pm. Snow level 4000 feet. High near 44. South wind 11 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 44 °F

    Rain/Snow

  • Thursday Night

    Thursday Night: Rain, possibly mixed with snow showers. Snow level 3800 feet. Low around 38. South wind 9 to 13 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 38 °F

    Rain/Snow

  • Friday

    Friday: Rain, possibly mixed with snow, becoming all rain after 4pm. Snow level 3600 feet. High near 42. South southeast wind 6 to 9 mph becoming west in the afternoon. Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 42 °F

    Rain/Snow

  • Friday Night

    Friday Night: Rain, possibly mixed with snow. Snow level 2800 feet. Low around 36. West northwest wind around 6 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 36 °F

    Rain/Snow

  • Saturday

    Saturday: A chance of rain and snow before 1pm, then a chance of rain. Snow level 2600 feet. Partly sunny, with a high near 41. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 41 °F

    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

Detailed Forecast

Overnight
Showers. Snow level 5000 feet. Low around 40. East southeast wind around 9 mph. Chance of precipitation is 80%.
Christmas Day
Rain and snow showers, mainly before 4pm. Snow level 4000 feet. High near 44. South wind 11 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday Night
Rain, possibly mixed with snow showers. Snow level 3800 feet. Low around 38. South wind 9 to 13 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Friday
Rain, possibly mixed with snow, becoming all rain after 4pm. Snow level 3600 feet. High near 42. South southeast wind 6 to 9 mph becoming west in the afternoon. Chance of precipitation is 100%. Little or no snow accumulation expected.
Friday Night
Rain, possibly mixed with snow. Snow level 2800 feet. Low around 36. West northwest wind around 6 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Saturday
A chance of rain and snow before 1pm, then a chance of rain. Snow level 2600 feet. Partly sunny, with a high near 41. Chance of precipitation is 50%. Little or no snow accumulation expected.
Saturday Night
Mostly cloudy, with a low around 32.
Sunday
Mostly sunny, with a high near 45.
Sunday Night
Partly cloudy, with a low around 33.
Monday
Mostly sunny, with a high near 51.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
Sunny, with a high near 54.
Tuesday Night
Partly cloudy, with a low around 38.
Wednesday
Mostly sunny, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
12 Miles ESE Agness OR
 42.51°N 123.83°W (Elev. 2379 ft)
Last Update:
3:41 am PST Dec 25, 2025
Forecast Valid:
5am PST Dec 25, 2025-6pm PST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation