• Today

    Aug 20

    84°Lo 67°

    Partly sunny

    Poor for home energy
    • Avg
      RealFeel
      76°
    • Hi
      RealFeel
      86°
    • Wind
      Speed
      5 mph
    more
  • Thu

    Aug 21

    87°Lo 72°

    A couple of thunderstorms

    Poor for home energy
    • Avg
      RealFeel
      84°
    • Hi
      RealFeel
      94°
    • Wind
      Speed
      6 mph
    more
  • Fri

    Aug 22

    90°Lo 71°

    Clouds and sun with a t-storm

    Poor for home energy
    • Avg
      RealFeel
      87°
    • Hi
      RealFeel
      102°
    • Wind
      Speed
      5 mph
    more
  • Sat

    Aug 23

    87°Lo 69°

    Clouds and sun with a t-storm

    Poor for home energy
    • Avg
      RealFeel
      82°
    • Hi
      RealFeel
      96°
    • Wind
      Speed
      5 mph
  • Sun

    Aug 24

    89°Lo 68°

    Very warm with clouds and sun

    Fair for home energy
    • Avg
      RealFeel
      81°
    • Hi
      RealFeel
      95°
    • Wind
      Speed
      7 mph
    more
Next Previous
Hi 87° RealFeel® 96° Precipitation 58%

Day

N

E

S

W

  • SSE 5 mph
  • Gusts: 9 mph

Periods of clouds and sunshine with a shower or thunderstorm around; very warm and humid

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 60%
  • Precipitation: 0.24 in
  • Rain: 0.24 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1.5 hrs
  • Hours of Rain: 1.5 hrs
Lo 69° RealFeel® 68° Precipitation 25%

Night

N

E

S

W

  • S 4 mph
  • Gusts: 7 mph

Partly cloudy and humid

  • Max UV Index: N/A
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Aug 23

more Historical Weather Data >
  Today Normal Record 8/23/2013
High 87° 80° N/A 79°
Low 69° 62° N/A 54°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:07 AM with 13:33 of sunlight, then sets at 7:40 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:23 AM with 14:02 of moolight, then sets at 6:25 PM

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Lake Forest Weather Report

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August 20, 2014; 2:24 PM ET

While there may be a mix of sunshine and clouds over the area, Chicago is facing more rounds of thunderstorms over the next several days. more >

Energy Efficient Lightbulbs and S.A.D

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Sat. UV Index