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.

Clear

84°F

29°C

Humidity 35%
Wind Speed SSW 9 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 12 Mar 02:35 PM PDT
Extended Forecast for

3 Miles SE Costa Mesa CA

Heat Advisory until March 13, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until March 13, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • This Afternoon

    High: 90 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 58. West wind around 5 mph becoming calm in the evening.

    Low: 58 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 87. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 56. South wind around 5 mph.

    Low: 56 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 11am. Otherwise, partly sunny, with a high near 80. Light south wind increasing to 5 to 10 mph in the morning.

    High: 80 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Sunday

    Sunday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 81.

    High: 81 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 90. West wind around 10 mph.
Tonight
Mostly clear, with a low around 58. West wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 87. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Friday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 56. South wind around 5 mph.
Saturday
Patchy fog before 11am. Otherwise, partly sunny, with a high near 80. Light south wind increasing to 5 to 10 mph in the morning.
Saturday Night
Partly cloudy, with a low around 53.
Sunday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 81.
Sunday Night
Partly cloudy, with a low around 54.
Monday
Mostly sunny, with a high near 86.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Sunny, with a high near 88.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Costa Mesa CA
 33.65°N 117.89°W (Elev. 3 ft)
Last Update:
12:13 pm PDT Mar 12, 2026
Forecast Valid:
2pm PDT Mar 12, 2026-6pm PDT Mar 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