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

75°F

24°C

Humidity 83%
Wind Speed SW 3 MPH
Barometer 29.85 in (1010.84 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 26 Aug 02:20 AM PDT
Extended Forecast for

3 Miles SE Tustin CA

Extreme Heat Warning August 26, 02:39am until August 28, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 26, 02:39am until August 28, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • Overnight

    Low: 73 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 96. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 96 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 75. West wind around 5 mph becoming calm in the evening.

    Low: 75 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 97. Light southwest wind increasing to 5 to 10 mph in the afternoon.

    High: 97 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 75. West wind around 5 mph becoming calm in the evening.

    Low: 75 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 97.

    High: 97 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Saturday

    Saturday: Patchy fog before 11am. Otherwise, sunny, with a high near 94.

    High: 94 °F

    Patchy Fog
    then Sunny

Detailed Forecast

Overnight
Mostly clear, with a low around 73. Calm wind.
Wednesday
Sunny, with a high near 96. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Wednesday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 75. West wind around 5 mph becoming calm in the evening.
Thursday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 97. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Thursday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 75. West wind around 5 mph becoming calm in the evening.
Friday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 97.
Friday Night
Mostly clear, with a low around 75.
Saturday
Patchy fog before 11am. Otherwise, sunny, with a high near 94.
Saturday Night
Mostly clear, with a low around 71.
Sunday
Sunny, with a high near 88.
Sunday Night
Mostly clear, with a low around 68.
Monday
Sunny, with a high near 86.
Monday Night
Mostly clear, with a low around 68.
Tuesday
Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Tustin CA
 33.71°N 117.79°W (Elev. 82 ft)
Last Update:
12:10 am PDT Aug 26, 2026
Forecast Valid:
2am PDT Aug 26, 2026-6pm PDT Sep 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

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Chance of Precipitation