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 NNE 0 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Last update 25 Dec 01:58 AM PST
Extended Forecast for

2 Miles ENE Hugo OR

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

  • Overnight

    Overnight: Showers, mainly after 4am. Low around 38. East southeast wind around 9 mph. Chance of precipitation is 80%.

    Low: 38 °F

    Showers

  • Christmas Day

    Christmas Day: Showers likely, mainly before 3pm. Snow level 4500 feet lowering to 4000 feet. Partly sunny, with a high near 41. South wind 11 to 16 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 41 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Rain and snow showers likely before 2am, then rain showers. Snow level 3800 feet. Low around 34. South southeast wind 9 to 11 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 34 °F

    Rain/Snow
    Likely then
    Showers

  • Friday

    Friday: Rain, possibly mixed with snow showers before 9am, then rain. Snow level 3600 feet. High near 37. South southeast wind 7 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 37 °F

    Rain/Snow
    then Rain

  • Friday Night

    Friday Night: Rain before 1am, then a chance of rain and snow. Snow level 2700 feet. Low around 31. West northwest wind around 7 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 31 °F

    Rain then
    Chance
    Rain/Snow

  • Saturday

    Saturday: A chance of rain and snow before 1pm, then a slight chance of rain. Snow level 2500 feet. Mostly cloudy, with a high near 35. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 35 °F

    Chance
    Rain/Snow

  • Saturday Night

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

    Low: 29 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

  • Sunday Night

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

    Low: 33 °F

    Partly Cloudy

Detailed Forecast

Overnight
Showers, mainly after 4am. Low around 38. East southeast wind around 9 mph. Chance of precipitation is 80%.
Christmas Day
Showers likely, mainly before 3pm. Snow level 4500 feet lowering to 4000 feet. Partly sunny, with a high near 41. South wind 11 to 16 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain and snow showers likely before 2am, then rain showers. Snow level 3800 feet. Low around 34. South southeast wind 9 to 11 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Friday
Rain, possibly mixed with snow showers before 9am, then rain. Snow level 3600 feet. High near 37. South southeast wind 7 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Friday Night
Rain before 1am, then a chance of rain and snow. Snow level 2700 feet. Low around 31. West northwest wind around 7 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Saturday
A chance of rain and snow before 1pm, then a slight chance of rain. Snow level 2500 feet. Mostly cloudy, with a high near 35. Chance of precipitation is 30%. Little or no snow accumulation expected.
Saturday Night
Mostly cloudy, with a low around 29.
Sunday
Partly sunny, with a high near 40.
Sunday Night
Partly cloudy, with a low around 33.
Monday
Mostly sunny, with a high near 47.
Monday Night
Partly cloudy, with a low around 37.
Tuesday
Sunny, with a high near 49.
Tuesday Night
Partly cloudy, with a low around 37.
Wednesday
Mostly sunny, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Hugo OR
 42.61°N 123.38°W (Elev. 2100 ft)
Last Update:
2:36 am PST Dec 25, 2025
Forecast Valid:
3am PST Dec 25, 2025-6pm PST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation