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City of Lake Forest, CaliforniaLake Forest, CA 7-Day Night Weather Forecast
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Lake Forest, CA Weather Forecast
Lake Forest, CA Weather Forecast Date: 1120 AM PDT Sat Sep 12 2026
The area/counties/county of: Orange County Inland Areas, including the cities of: Santa Ana, Anaheim, Garden Grove, Irvine, Orange, Fullerton, and Mission Viejo.or toggle through each period.
Tonight... Partly cloudy. Patchy fog overnight. Lows 62 to 68. Areas of winds southwest 10 mph this evening becoming light.
Sunday... Partly cloudy with patchy fog in the morning...Becoming sunny. Highs around 83 towards the coast to 85 to 88 farther inland. Light winds becoming southwest 10 mph in the afternoon.
Sunday Night... Mostly clear in the evening...Becoming partly cloudy. Lows 60 to 67. Areas of winds southwest to 10 mph in the evening becoming light.
Monday... Partly cloudy in the morning...Becoming mostly sunny. Highs around 81 towards the coast to 83 to 86 farther inland. Areas of winds south 10 mph.
Monday Night... Mostly clear in the evening...Becoming partly cloudy. Lows 58 to 65. Areas of winds south 10 mph.
Tuesday... Partly cloudy in the morning...Becoming mostly sunny. Highs around 80 towards the coast to 81 farther inland.
Tuesday Night... Mostly clear. Lows 56 to 64.
Wednesday... Mostly sunny. Highs around 80 towards the coast to 82 farther inland.
Wednesday Night... Mostly clear. Lows 57 to 65.
Thursday... Mostly sunny. Highs around 83 towards the coast to 87 farther inland.
Thursday Night... Clear. Lows 59 to 65.
Friday... Mostly sunny. Highs 86 to 89 towards the coast to 91 farther inland.
Friday Night... Clear. Lows 63 to 68.
POP = Probability of Precipitation
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