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: 970.0ft.

NA

74°F

23°C

Humidity 49%
Wind Speed WNW 0 MPH
Barometer 29.77 in (1008.13 mb)
Dewpoint 54°F (12°C)
Visibility NA
Last update 22 Aug 08:25 AM PDT
Extended Forecast for

Lake Forest CA

Heat Advisory August 22, 08:41am until August 22, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 22, 08:41am until August 22, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Today

    High: 94 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 69. Southwest wind around 5 mph becoming calm.

    Low: 69 °F

    Partly Cloudy

  • Saturday

    Saturday: Patchy fog between 8am and 11am. Otherwise, mostly sunny, with a high near 93. Calm wind becoming west around 5 mph in the afternoon.

    High: 93 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 71. West wind around 5 mph becoming calm in the evening.

    Low: 71 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 93. West wind around 5 mph.

    High: 93 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 69.

    Low: 69 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 90.

    High: 90 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 67.

    Low: 67 °F

    Patchy Fog

Detailed Forecast

Today
Sunny, with a high near 94. Calm wind becoming west around 5 mph in the afternoon.
Tonight
Partly cloudy, with a low around 69. Southwest wind around 5 mph becoming calm.
Saturday
Patchy fog between 8am and 11am. Otherwise, mostly sunny, with a high near 93. Calm wind becoming west around 5 mph in the afternoon.
Saturday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 71. West wind around 5 mph becoming calm in the evening.
Sunday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 93. West wind around 5 mph.
Sunday Night
Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 69.
Monday
Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 90.
Monday Night
Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 67.
Tuesday
Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 87.
Tuesday Night
Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 66.
Wednesday
Patchy fog. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 86.
Wednesday Night
Patchy fog. Otherwise, increasing clouds, with a low around 65.
Thursday
Patchy fog. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lake Forest CA
 33.65°N 117.69°W (Elev. 449 ft)
Last Update:
2:12 am PDT Aug 22, 2025
Forecast Valid:
8am PDT Aug 22, 2025-6pm PDT Aug 28, 2025
 
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Additional Resources

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