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

CW5283 Foothill Ranch (C5283)

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

NA

61°F

16°C

Humidity 73%
Wind Speed SSW 0 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 52°F (11°C)
Visibility NA
Last update 12 May 07:40 PM PDT
Extended Forecast for

Lake Forest CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 56. South wind around 5 mph.

    Low: 56 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 73. Light and variable wind becoming west 5 to 10 mph in the morning.

    High: 73 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 54. West wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 75. Light south wind becoming southwest 5 to 10 mph in the afternoon.

    High: 75 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55. Southwest wind around 5 mph becoming calm in the evening.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 74.

    High: 74 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 56. South wind around 5 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 73. Light and variable wind becoming west 5 to 10 mph in the morning.
Wednesday Night
Increasing clouds, with a low around 54. West wind around 5 mph becoming calm in the evening.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 75. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 55. Southwest wind around 5 mph becoming calm in the evening.
Friday
Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 74.
Friday Night
Mostly clear, with a low around 55.
Saturday
Sunny, with a high near 75.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Mostly sunny, with a high near 76.
Sunday Night
Mostly clear, with a low around 56.
Monday
Sunny, with a high near 78.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lake Forest CA
 33.65°N 117.69°W (Elev. 449 ft)
Last Update:
12:47 pm PDT May 12, 2026
Forecast Valid:
7pm PDT May 12, 2026-6pm PDT May 19, 2026
 
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Additional Resources

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