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.

Mist

61°F

16°C

Humidity 77%
Wind Speed NE 8 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 54°F (12°C)
Visibility 4.00 mi
Last update 22 Jan 08:35 AM PST
Extended Forecast for

Costa Mesa CA

  • Today

    Today: A chance of showers, mainly between 10am and 4pm. Mostly cloudy, with a high near 66. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 66 °F

    Chance
    Showers

  • Tonight

    Tonight: A slight chance of showers before 10pm. Mostly cloudy, with a low around 51. Calm wind becoming southwest around 5 mph. Chance of precipitation is 20%.

    Low: 51 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 67. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 67 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 53. Calm wind becoming west around 5 mph after midnight.

    Low: 53 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 66. Light southwest wind increasing to 5 to 10 mph in the afternoon.

    High: 66 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

Detailed Forecast

Today
A chance of showers, mainly between 10am and 4pm. Mostly cloudy, with a high near 66. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
A slight chance of showers before 10pm. Mostly cloudy, with a low around 51. Calm wind becoming southwest around 5 mph. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 67. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 53. Calm wind becoming west around 5 mph after midnight.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 66. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 47.
Sunday
Partly sunny, with a high near 69.
Sunday Night
Mostly cloudy, with a low around 46.
Monday
Mostly sunny, with a high near 68.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 69.
Tuesday Night
Mostly cloudy, with a low around 49.
Wednesday
Mostly cloudy, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Costa Mesa CA
 33.69°N 117.92°W (Elev. 3 ft)
Last Update:
1:11 am PST Jan 22, 2026
Forecast Valid:
8am PST Jan 22, 2026-6pm PST Jan 28, 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