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

66°F

19°C

Humidity 72%
Wind Speed NNE 4 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 19 Oct 04:15 AM PDT
Extended Forecast for

Costa Mesa CA

  • Today

    Today: Patchy fog before 8am. Otherwise, sunny, with a high near 80. Calm wind becoming south around 5 mph in the afternoon.

    High: 80 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, mostly clear, with a low around 61. Southwest wind around 5 mph becoming calm.

    Low: 61 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 77. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 77 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 60. Southeast wind around 5 mph.

    Low: 60 °F

    Patchy Fog

  • Wednesday

    Wednesday: A chance of showers. Mostly cloudy, with a high near 73. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 73 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 58. Chance of precipitation is 90%.

    Low: 58 °F

    Showers

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 69. Chance of precipitation is 70%.

    High: 69 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers before 11pm. Partly cloudy, with a low around 56.

    Low: 56 °F

    Chance
    Showers then
    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

Detailed Forecast

Today
Patchy fog before 8am. Otherwise, sunny, with a high near 80. Calm wind becoming south around 5 mph in the afternoon.
Tonight
Patchy fog after 11pm. Otherwise, mostly clear, with a low around 61. Southwest wind around 5 mph becoming calm.
Tuesday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 77. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Tuesday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 60. Southeast wind around 5 mph.
Wednesday
A chance of showers. Mostly cloudy, with a high near 73. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Showers and possibly a thunderstorm. Low around 58. Chance of precipitation is 90%.
Thursday
Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 69. Chance of precipitation is 70%.
Thursday Night
A chance of showers before 11pm. Partly cloudy, with a low around 56.
Friday
Sunny, with a high near 72.
Friday Night
Clear, with a low around 57.
Saturday
Sunny, with a high near 78.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Mostly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Costa Mesa CA
 33.64°N 117.91°W (Elev. 13 ft)
Last Update:
1:31 am PDT Oct 19, 2026
Forecast Valid:
4am PDT Oct 19, 2026-6pm PDT Oct 25, 2026
 
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Additional Resources

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Chance of Precipitation