, °F

Personalized Forecasts

Featured Forecast

My Favorite Forecasts

    My Recent Locations

    • Today

      Sep 26

      101° /70°F
      Mostly sunny and very hot
      • Excellent
      • for an outdoor bbq
      • Precip: 6%
      • Hi RealFeel: 105°
      • Wind Speed: 7 mph
    • Tue

      Sep 27

      95° /65°
      Hot with partial sunshine
      • Excellent
      • for an outdoor bbq
      • Precip: 7%
      • Hi RealFeel: 98°
      • Wind Speed: 7 mph
      More
    • Wed

      Sep 28

      86° /63°
      Plenty of sun
      • Excellent
      • for an outdoor bbq
      • Precip: 6%
      • Hi RealFeel: 91°
      • Wind Speed: 6 mph
      More
    • Thu

      Sep 29

      88° /62°
      Sunny and very warm
      • Excellent
      • for an outdoor bbq
      • Precip: 2%
      • Hi RealFeel: 93°
      • Wind Speed: 6 mph
      More
    • Fri

      Sep 30

      84° /61°
      Mostly sunny
      • Excellent
      • for an outdoor bbq
      • Precip: 1%
      • Hi RealFeel: 89°
      • Wind Speed: 6 mph
      More

    Day

    101°Hi RealFeel® 105° Precipitation 6%
    Mostly sunny and very hot; extreme heat can be dangerous for outdoor activities
    • N 7 mph
    • Gusts: 12 mph
    • Max UV Index: 7 (High)
    • Thunderstorms: 3%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    70°Lo RealFeel® 68° Precipitation 12%
    Mostly clear
    • ENE 5 mph
    • Gusts: 7 mph
    • Max UV Index: N/A
    • Thunderstorms: 0%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/26/2015
    High 101° 79° N/A 95°
    Low 70° 60° N/A 69°

    Sunrise/Sunset

    • Sunrise: 6:42 AM
    • Sunset: 6:41 PM
    • Duration: 11:59 hr

    Moonrise/Moonset

    • Moonrise: 2:38 AM
    • Moonset: 4:21 PM
    • Duration: 13:43 hr
    Astronomy

    Lake Forest Weather Report

    Santa Ana winds, heat to raise wildfire threat across Southern California through Monday

    September 26, 2016; 2:47 AM ET

    Hot, dry and windy weather into Monday night will lead to an increased risk of wildfires across Southern California. More >

    Mon. Outdoor Entertaining

    Mon. Wind Maps

    Mon. UV Index