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City of Lake Forest, CaliforniaLake Forest, CA 7-Day Weather Forecast
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Lake Forest Weather Forecast
Lake Forest, CA Weather Forecast Date: 1123 AM PDT Fri Sep 11 2026
Weather forecast for Lake Forest, CA
Tonight Lo: 68°F Lo: 20°C |
Tonight... Mostly clear this evening...Becoming partly cloudy. Lows 64 to 70. Areas of winds south 10 mph this evening becoming light. |
Sat Hi: 90°FHi: 32°C Lo: 65°F Lo: 18°C |
Saturday... Partly cloudy with patchy fog in the morning... Becoming mostly sunny. Highs 84 to 87 towards the coast to 90 farther inland. Light winds becoming southwest 10 mph in the afternoon. |
| Sun Hi: 85°FHi: 29°C Lo: 63°F Lo: 17°C |
Sunday... Partly cloudy with patchy fog in the morning...Becoming mostly sunny. Highs 81 to 84 towards the coast to 85 to 88 farther inland. Light winds becoming southwest 10 mph in the afternoon. |
Mon Hi: 85°FHi: 29°C Lo: 62°F Lo: 17°C |
Monday... Partly cloudy in the morning...Becoming mostly sunny. Highs 80 to 83 towards the coast to 85 farther inland. |
| Tue Hi: 79°FHi: 26°C Lo: 61°F Lo: 16°C |
Tuesday... Partly cloudy in the morning...Becoming mostly sunny. Highs around 79 towards the coast to 81 to 84 farther inland. |
| Wed Hi: 81°FHi: 27°C Lo: 62°F Lo: 17°C |
Wednesday... Partly cloudy in the morning...Becoming mostly sunny. Highs around 81 towards the coast to 85 farther inland. |
Thu Hi: 85°FHi: 29°C Lo: 65°F Lo: 18°C |
Thursday... Mostly sunny. Highs around 85 towards the coast to 89 farther inland. |
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