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.

Partly Cloudy

57°F

14°C

Humidity 87%
Wind Speed SSE 18 MPH
Barometer 29.71 in (1006.1 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 24 Dec 07:20 PM PST
Extended Forecast for

5 Miles SE Merced CA

Flood Watch December 24, 07:32pm until December 26, 04:00pm
Wind Advisory December 24, 07:32pm until December 25, 04:00pm
Click here for hazard details and duration
Flood Watch
Wind Advisory
  •  
    Flood Watch December 24, 07:32pm until December 26, 04:00pm
    Wind Advisory December 24, 07:32pm until December 25, 04:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 56 °F

    Showers and
    Breezy

  • Christmas Day

    Christmas Day: Rain before 10am, then showers and possibly a thunderstorm after 10am.  High near 56. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 35 mph.  Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 56 °F

    Showers and
    Breezy

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm.  Low around 51. Southeast wind around 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: 51 °F

    Showers

  • Friday

    Friday: Rain before 10am, then showers and possibly a thunderstorm between 10am and 4pm, then rain likely and possibly a thunderstorm after 4pm.  High near 55. Southeast wind around 10 mph, with gusts as high as 15 mph.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 55 °F

    Showers

  • Friday Night

    Friday Night: Rain likely, mainly before 10pm.  Mostly cloudy, with a low around 43. East wind around 5 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Rain Likely
    then Chance
    Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 50. North northeast wind around 5 mph becoming northwest in the morning.

    High: 50 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 39. North northwest wind around 5 mph.

    Low: 39 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 48. Calm wind.

    High: 48 °F

    Mostly Sunny

Detailed Forecast

Tonight
Showers and possibly a thunderstorm before 4am, then rain after 4am. Steady temperature around 56. Breezy, with a southeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Christmas Day
Rain before 10am, then showers and possibly a thunderstorm after 10am. High near 56. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and possibly a thunderstorm. Low around 51. Southeast wind around 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 10am, then showers and possibly a thunderstorm between 10am and 4pm, then rain likely and possibly a thunderstorm after 4pm. High near 55. Southeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 43. East wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly sunny, with a high near 50. North northeast wind around 5 mph becoming northwest in the morning.
Saturday Night
Partly cloudy, with a low around 39. North northwest wind around 5 mph.
Sunday
Mostly sunny, with a high near 48. Calm wind.
Sunday Night
Partly cloudy, with a low around 36. 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
A 20 percent chance of rain. Mostly cloudy, with a high near 49. Calm wind.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SE Merced CA
 37.25°N 120.39°W (Elev. 190 ft)
6:57 pm PST Dec 24, 2025
7pm PST Dec 24, 2025-6pm PST Dec 31, 2025
 
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Additional Resources

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