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

Merced Regional Airport (KMCE)

Lat: 37.28306°NLon: 120.50778°WElev: 154.0ft.

Overcast

55°F

13°C

Humidity 87%
Wind Speed ESE 16 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 25 Dec 10:35 AM PST
Extended Forecast for

2 Miles SW Merced CA

Flood Watch December 25, 10:59am until December 26, 04:00pm
Wind Advisory December 25, 10:59am until December 25, 04:00pm
Click here for hazard details and duration
Flood Watch
Wind Advisory
  •  
    Flood Watch December 25, 10:59am until December 26, 04:00pm
    Wind Advisory December 25, 10:59am until December 25, 04:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Christmas Day

    High: 57 °F

    Showers and
    Breezy

  • Tonight

    Tonight: Showers and possibly a thunderstorm.  Low around 50. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 50 °F

    Showers

  • Friday

    Friday: Rain before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then a chance of rain and thunderstorms after 4pm.  High near 55. Southeast wind around 10 mph, with gusts as high as 15 mph.  Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 55 °F

    Showers

  • Friday Night

    Friday Night: A 50 percent chance of rain, mainly before 10pm.  Mostly cloudy, with a low around 43. East wind around 5 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Chance Rain
    then Slight
    Chance Rain

  • Saturday

    Saturday: A 20 percent chance of rain before 10am.  Partly sunny, with a high near 50. Northwest wind around 5 mph.

    High: 50 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 38. Northwest wind around 5 mph.

    Low: 38 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 48. Calm wind becoming northwest around 5 mph.

    High: 48 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Partly Cloudy

Detailed Forecast

Christmas Day
Showers and possibly a thunderstorm. High near 57. Breezy, with a southeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and possibly a thunderstorm. Low around 50. South southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Rain before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then a chance of rain and thunderstorms after 4pm. High near 55. Southeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A 50 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 43. East wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A 20 percent chance of rain before 10am. Partly sunny, with a high near 50. Northwest wind around 5 mph.
Saturday Night
Partly cloudy, with a low around 38. Northwest wind around 5 mph.
Sunday
Partly sunny, with a high near 48. Calm wind becoming northwest around 5 mph.
Sunday Night
Partly cloudy, with a low around 37. Calm wind.
Monday
Partly sunny, with a high near 47. Calm wind.
Monday Night
Partly cloudy, with a low around 37. Calm wind.
Tuesday
Partly sunny, with a high near 48. Calm wind.
Tuesday Night
Mostly cloudy, with a low around 39. Calm wind.
Wednesday
Mostly cloudy, with a high near 50. Calm wind.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Merced CA
 37.28°N 120.51°W (Elev. 167 ft)
9:57 am PST Dec 25, 2025
10am PST Dec 25, 2025-6pm PST Dec 31, 2025
 
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Additional Resources

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