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: 970.0ft.

NA

62°F

17°C

Humidity 88%
Wind Speed E 0 MPH
Barometer 29.84 in (1010.5 mb)
Dewpoint 58°F (14°C)
Visibility NA
Last update 18 Aug 05:40 AM PDT
Extended Forecast for

Lake Forest CA

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 85. Calm wind becoming west around 5 mph in the afternoon.

    High: 85 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 63. Southeast wind around 5 mph.

    Low: 63 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 86. Light and variable wind becoming west 5 to 10 mph in the afternoon.

    High: 86 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 63. West wind around 5 mph becoming calm in the evening.

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89. Calm wind becoming west around 5 mph in the afternoon.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Thursday Night

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

    Low: 69 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 85. Calm wind becoming west around 5 mph in the afternoon.
Tonight
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 63. Southeast wind around 5 mph.
Tuesday
Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 86. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 63. West wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 89. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 64.
Thursday
Mostly sunny, with a high near 91.
Thursday Night
Mostly clear, with a low around 69.
Friday
Mostly sunny, with a high near 91.
Friday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 69.
Saturday
Patchy fog. Otherwise, mostly sunny, with a high near 90.
Saturday Night
Patchy fog. Otherwise, partly cloudy, with a low around 69.
Sunday
Patchy fog. Otherwise, mostly sunny, with a high near 89.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lake Forest CA
 33.65°N 117.69°W (Elev. 449 ft)
Last Update:
2:04 am PDT Aug 18, 2025
Forecast Valid:
5am PDT Aug 18, 2025-6pm PDT Aug 24, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation