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

70°F

21°C

Humidity 42%
Wind Speed N 0 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 12 Mar 11:53 PM PDT
Extended Forecast for

3 Miles ESE Tustin CA

Heat Advisory March 13, 12:14am until March 13, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 13, 12:14am until March 13, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Overnight

    Low: 62 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 90. Calm wind becoming west around 5 mph in the afternoon.

    High: 90 °F

    Sunny

  • Friday Night

    Friday Night: Patchy fog between 11pm and 5am. Otherwise, partly cloudy, with a low around 59. Calm wind becoming southeast around 5 mph.

    Low: 59 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog between 8am and 11am. Otherwise, mostly 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: Mostly clear, with a low around 55. South wind around 5 mph becoming calm after midnight.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 86.

    High: 86 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

Detailed Forecast

Overnight
Clear, with a low around 62. Northeast wind around 5 mph.
Friday
Sunny, with a high near 90. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
Patchy fog between 11pm and 5am. Otherwise, partly cloudy, with a low around 59. Calm wind becoming southeast around 5 mph.
Saturday
Patchy fog between 8am and 11am. Otherwise, mostly sunny, with a high near 80. Light south wind increasing to 5 to 10 mph in the morning.
Saturday Night
Mostly clear, with a low around 55. South wind around 5 mph becoming calm after midnight.
Sunday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 86.
Sunday Night
Mostly clear, with a low around 59.
Monday
Sunny, with a high near 89.
Monday Night
Mostly clear, with a low around 63.
Tuesday
Sunny, with a high near 93.
Tuesday Night
Clear, with a low around 64.
Wednesday
Sunny, with a high near 93.
Wednesday Night
Clear, with a low around 62.
Thursday
Sunny, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Tustin CA
 33.71°N 117.76°W (Elev. 194 ft)
Last Update:
11:24 pm PDT Mar 12, 2026
Forecast Valid:
12am PDT Mar 13, 2026-6pm PDT Mar 19, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation