National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

FW0058 Santa Ana Fire (F0058)

Lat: 33.74333°NLon: 117.86783°WElev: 108.14ft.

NA

93°F

34°C

Humidity 48%
Wind Speed SSW 3 MPH
Barometer 29.86 in (1011.18 mb)
Dewpoint 71°F (22°C)
Visibility NA
Heat Index100°F (38°C)
Last update 25 Aug 02:15 PM PDT
Extended Forecast for

Tustin CA

Extreme Heat Warning August 25, 02:33pm until August 28, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 25, 02:33pm until August 28, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • This Afternoon

    High: 95 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 73. Southwest wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 97. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 97 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 75. Southwest wind around 5 mph becoming calm in the evening.

    Low: 75 °F

    Mostly Cloudy

  • Thursday

    Thursday: Patchy fog before 11am. Otherwise, partly sunny, with a high near 101. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 101 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 75.

    Low: 75 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 11am. Otherwise, partly sunny, with a high near 102.

    High: 102 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 75.

    Low: 75 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 95. Southwest wind around 10 mph.
Tonight
Mostly clear, with a low around 73. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 97. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 75. Southwest wind around 5 mph becoming calm in the evening.
Thursday
Patchy fog before 11am. Otherwise, partly sunny, with a high near 101. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Thursday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 75.
Friday
Patchy fog before 11am. Otherwise, partly sunny, with a high near 102.
Friday Night
Partly cloudy, with a low around 75.
Saturday
Sunny, with a high near 94.
Saturday Night
Mostly clear, with a low around 72.
Sunday
Sunny, with a high near 90.
Sunday Night
Mostly clear, with a low around 69.
Monday
Sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tustin CA
 33.75°N 117.82°W (Elev. 112 ft)
Last Update:
11:56 am PDT Aug 25, 2026
Forecast Valid:
2pm PDT Aug 25, 2026-6pm PDT Aug 31, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation