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.

Rain

66°F

19°C

Humidity 88%
Wind Speed S 8 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 02 Jan 12:05 PM PST
Extended Forecast for

Costa Mesa CA

  • This Afternoon

    This Afternoon: A slight chance of showers. Mostly cloudy, with a high near 69. South wind around 5 mph. Chance of precipitation is 20%.

    High: 69 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A slight chance of showers. Mostly 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. Chance of precipitation is 50%.

    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.

    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

Detailed Forecast

This Afternoon
A slight chance of showers. Mostly cloudy, with a high near 69. South wind around 5 mph. Chance of precipitation is 20%.
Tonight
A slight chance of showers. Mostly 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. Chance of precipitation is 50%.
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.
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.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Costa Mesa CA
 33.66°N 117.94°W (Elev. 7 ft)
Last Update:
12:15 pm PST Jan 2, 2026
Forecast Valid:
12pm PST Jan 2, 2026-6pm PST Jan 8, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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