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

Hazardous Weather Conditions

Current conditions at

John Wayne-Orange County Airport (KSNA)

Lat: 33.6798°NLon: 117.8674°WElev: 39.0ft.

Overcast

64°F

18°C

Humidity 82%
Wind Speed N 0 MPH
Barometer 29.83 in (1010.16 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 12 Oct 12:15 AM PDT
Extended Forecast for

Costa Mesa CA

Coastal Flood Advisory October 12, 12:43am until October 13, 02:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory October 12, 12:43am until October 13, 02:00pm

    NOW until 2:00pm Tue

    Coastal Flood Advisory

  • Overnight

    Low: 60 °F

    Showers
    Likely

  • Columbus Day

    Columbus Day: Showers likely, mainly before 11am. Partly sunny, with a high near 71. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 71 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A chance of showers, mainly before 11pm. Partly cloudy, with a low around 58. West wind around 5 mph becoming east after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 58 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Sunny, with a high near 73. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 73 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 59. West wind 5 to 10 mph becoming north after midnight.

    Low: 59 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 62.

    Low: 62 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Overnight
Showers likely. Mostly cloudy, with a low around 60. Southwest wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Columbus Day
Showers likely, mainly before 11am. Partly sunny, with a high near 71. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A chance of showers, mainly before 11pm. Partly cloudy, with a low around 58. West wind around 5 mph becoming east after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Sunny, with a high near 73. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 59. West wind 5 to 10 mph becoming north after midnight.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Clear, with a low around 62.
Thursday
Sunny, with a high near 86.
Thursday Night
Clear, with a low around 68.
Friday
Sunny, with a high near 93.
Friday Night
Clear, with a low around 70.
Saturday
Sunny, with a high near 89.
Saturday Night
Clear, with a low around 68.
Sunday
Sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Costa Mesa CA
 33.66°N 117.94°W (Elev. 7 ft)
Last Update:
1:13 pm PDT Oct 11, 2026
Forecast Valid:
12am PDT Oct 12, 2026-6pm PDT Oct 18, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation