National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

Hazardous Weather Conditions

Current conditions at

MERLIN (MLFO3)

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

NA

38°F

3°C

Humidity 100%
Wind Speed ESE 0 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Last update 24 Dec 12:58 AM PST
Extended Forecast for

2 Miles ESE Langdon OR

Wind Advisory until December 24, 01:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory until December 24, 01:00pm

    NOW until 1:00pm Wed

    Wind Advisory

  • Overnight

    Low: 38 °F

    Rain

  • Wednesday

    Wednesday: A chance of rain before noon, then a slight chance of rain after 5pm. Snow level 5800 feet lowering to 4100 feet. Partly sunny, with a high near 49. Breezy, with a south wind 19 to 24 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 50%.

    High: 49 °F

    Chance Rain
    and Breezy
    then Slight
    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain, mainly after 4am. Low around 39. Calm wind becoming southeast around 6 mph in the evening. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 39 °F

    Rain

  • Christmas Day

    Christmas Day: Rain. Snow level 4200 feet. High near 49. South southeast wind 10 to 15 mph, with gusts as high as 24 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. Snow level 3800 feet. Mostly cloudy, with a low around 38. South wind around 7 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Rain Likely

  • Friday

    Friday: Rain, mainly before 4pm. Snow level 3600 feet. High near 46. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 46 °F

    Rain

  • Friday Night

    Friday Night: A 50 percent chance of rain, mainly before 10pm. Snow level 3100 feet. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Chance Rain
    then Slight
    Chance Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

Detailed Forecast

Overnight
Rain. Low around 38. Southeast wind around 9 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A chance of rain before noon, then a slight chance of rain after 5pm. Snow level 5800 feet lowering to 4100 feet. Partly sunny, with a high near 49. Breezy, with a south wind 19 to 24 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 50%.
Wednesday Night
Rain, mainly after 4am. Low around 39. Calm wind becoming southeast around 6 mph in the evening. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Christmas Day
Rain. Snow level 4200 feet. High near 49. South southeast wind 10 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain likely. Snow level 3800 feet. Mostly cloudy, with a low around 38. South wind around 7 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain, mainly before 4pm. Snow level 3600 feet. High near 46. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A 50 percent chance of rain, mainly before 10pm. Snow level 3100 feet. Mostly cloudy, with a low around 35.
Saturday
Mostly sunny, with a high near 45.
Saturday Night
Mostly cloudy, with a low around 31.
Sunday
Mostly sunny, with a high near 50.
Sunday Night
Partly cloudy, with a low around 33.
Monday
Mostly sunny, with a high near 53.
Monday Night
Mostly clear, with a low around 34.
Tuesday
Mostly sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Langdon OR
 42.78°N 123.58°W (Elev. 1339 ft)
Last Update:
11:41 pm PST Dec 23, 2025
Forecast Valid:
1am PST Dec 24, 2025-6pm PST Dec 30, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation