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

61°F

16°C

Humidity 93%
Wind Speed E 3 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 59°F (15°C)
Visibility 8.00 mi
Last update 02 Jan 10:53 PM PST
Extended Forecast for

Costa Mesa CA

  • Tonight

    Tonight: A slight chance of showers. Cloudy, with a low around 57. Southeast wind around 5 mph. Chance of precipitation is 20%.

    Low: 57 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Showers likely, mainly after 10am. Cloudy, with a high near 65. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely, mainly before 10pm. Mostly cloudy, with a low around 57. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 57 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely, mainly after 10am. Mostly cloudy, with a high near 64. Southwest wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 64 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers. Mostly cloudy, with a low around 53. Southwest wind around 5 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 53 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers, mainly before 4pm. Partly sunny, with a high near 62. Chance of precipitation is 30%.

    High: 62 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers, mainly after 10pm. Mostly cloudy, with a low around 51. Chance of precipitation is 30%.

    Low: 51 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers. Cloudy, then gradually becoming mostly sunny, with a high near 62.

    High: 62 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers. Partly cloudy, with a low around 49.

    Low: 49 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
A slight chance of showers. Cloudy, with a low around 57. Southeast wind around 5 mph. Chance of precipitation is 20%.
Saturday
Showers likely, mainly after 10am. Cloudy, with a high near 65. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Showers likely, mainly before 10pm. Mostly cloudy, with a low around 57. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Showers likely, mainly after 10am. Mostly cloudy, with a high near 64. Southwest wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 53. Southwest wind around 5 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
A chance of showers, mainly before 4pm. Partly sunny, with a high near 62. Chance of precipitation is 30%.
Monday Night
A chance of showers, mainly after 10pm. Mostly cloudy, with a low around 51. Chance of precipitation is 30%.
Tuesday
A chance of showers. Cloudy, then gradually becoming mostly sunny, with a high near 62.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 49.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 62.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 47.
Thursday
A slight chance of showers. Mostly sunny, with a high near 62.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Costa Mesa CA
 33.66°N 117.94°W (Elev. 7 ft)
Last Update:
12:55 pm PST Jan 2, 2026
Forecast Valid:
11pm PST Jan 2, 2026-6pm PST Jan 9, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation