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

Hazardous Weather Conditions

Current conditions at

CW5283 Foothill Ranch (C5283)

Lat: 33.685°NLon: 117.65583°WElev: 986.91ft.

NA

84°F

29°C

Humidity 47%
Wind Speed WNW 0 MPH
Barometer 29.72 in (1006.44 mb)
Dewpoint 62°F (17°C)
Visibility NA
Heat Index85°F (29°C)
Last update 26 Aug 07:55 PM PDT
Extended Forecast for

3 Miles ESE Tustin CA

Extreme Heat Warning August 26, 08:09pm until August 28, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 26, 08:09pm until August 28, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • Tonight

    Low: 73 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 99. Heat index values as high as 105. Calm wind becoming west around 5 mph in the afternoon.

    High: 99 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 73. Southwest wind around 5 mph becoming calm.

    Low: 73 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 98. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 98 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 72. Southwest wind around 5 mph becoming calm in the evening.

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

Detailed Forecast

Tonight
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 73. Calm wind.
Thursday
Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 99. Heat index values as high as 105. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 73. Southwest wind around 5 mph becoming calm.
Friday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 98. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Friday Night
Mostly clear, with a low around 72. Southwest wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 94.
Saturday Night
Mostly clear, with a low around 69.
Sunday
Sunny, with a high near 88.
Sunday Night
Mostly clear, with a low around 66.
Monday
Sunny, with a high near 85.
Monday Night
A slight chance of showers. Partly cloudy, with a low around 65.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 86.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 67.
Wednesday
A slight chance of showers. Partly sunny, with a high near 88.
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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:
11:36 am PDT Aug 26, 2026
Forecast Valid:
8pm PDT Aug 26, 2026-6pm PDT Sep 2, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation