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    • Today

      Sep 30

      87° /61°F
      Sunny to partly cloudy
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Sat

      Oct 1

      83° /59°
      Areas of low clouds, then sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Sun

      Oct 2

      77° /57°
      Clouds, then sun; not as warm
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Mon

      Oct 3

      75° /54°
      Clouds breaking and cool
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Tue

      Oct 4

      77° /54°
      Mostly sunny and pleasant
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    Friday
    4pm
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    11pm
    Forecast Mostly Sunny Mostly Sunny Mostly Sunny Clear Mostly Clear Mostly Clear Mostly Clear Mostly Clear
    Temp (°F) 84° 82° 80° 77° 73° 70° 69° 67°
    RealFeel® 85° 81° 78° 75° 72° 69° 67° 66°
    Wind (mph) 10 SW 9 WSW 8 WSW 6 WSW 4 WSW 4 SW 4 S 2 SE
    precip
    4pm
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    11pm
    Rain
    0%
    0%
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    0%
    0%
    0%
    Snow
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Ice
    0%
    0%
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    0%
    0%
    0%
    SKY
    4pm
    5pm
    6pm
    7pm
    8pm
    9pm
    10pm
    11pm
    UV Index 3 2 0 0 0 0 0 0
    Cloud Cover 15% 10% 10% 4% 11% 25% 25% 25%
    Humidity 42% 45% 50% 59% 65% 68% 74% 76%
    Dew Point 59° 59° 60° 61° 61° 59° 60° 59°
    Temp °F
    4pm
    5pm
    6pm
    7pm
    8pm
    9pm
    10pm
    11pm
    85° 80° 75° 70° 65°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/30/2015
    High 87° 78° N/A 92°
    Low 61° 59° N/A 63°

    Sunrise/Sunset

    • Sunrise: 6:45 AM
    • Sunset: 6:35 PM
    • Duration: 11:50 hr

    Moonrise/Moonset

    • Moonrise: 6:24 AM
    • Moonset: 6:42 PM
    • Duration: 12:18 hr
    Astronomy

    Lake Forest Weather Report

    Cooler air, showers to aid in wildfire efforts across California this weekend

    September 30, 2016; 11:54 AM ET

    Improving weather over the next several days will aid officials in battling wildfires across California. More >

    Fri. Pollen

    Fri. Dust & Dander

    Fri. Wind Maps