• Tonight

    May 27

    Lo 65°

    A thunderstorm in spots

    Common Cold Weather
    • Avg
      Temp
      72°
    • Avg
      RealFeel
      73°
    • Hi
      RealFeel
      84°
  • Sat

    May 28

    76°Lo 63°

    A p.m. t-storm in spots

    Beneficial weather for colds
    • Avg
      Temp
      70°
    • Avg
      RealFeel
      69°
    • Hi
      RealFeel
      79°
    more
  • Sun

    May 29

    78°Lo 62°

    Partly sunny, warm and muggy

    Beneficial weather for colds
    • Avg
      Temp
      70°
    • Avg
      RealFeel
      72°
    • Hi
      RealFeel
      82°
    more
  • Mon

    May 30

    80°Lo 59°

    A thunderstorm in spots

    Beneficial weather for colds
    • Avg
      Temp
      70°
    • Avg
      RealFeel
      74°
    • Hi
      RealFeel
      88°
    more
  • Tue

    May 31

    77°Lo 63°

    A thunderstorm in spots

    Beneficial weather for colds
    • Avg
      Temp
      70°
    • Avg
      RealFeel
      71°
    • Hi
      RealFeel
      82°
    more
Next Previous
Hi 78° RealFeel® 84° Precipitation 67%

Day

N

E

S

W

  • S 12 mph
  • Gusts: 22 mph

Intervals of clouds and sunshine with a couple of showers and a thunderstorm; not as warm but humid

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 56%
  • Precipitation: 0.32 in
  • Rain: 0.32 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 4 hrs
  • Hours of Rain: 4 hrs
Lo 65° RealFeel® 61° Precipitation 43%

Night

N

E

S

W

  • S 9 mph
  • Gusts: 14 mph

Mostly cloudy and mild with a shower or thunderstorm around

  • Max UV Index: N/A
  • Thunderstorms: 40%
  • Precipitation: 0.19 in
  • Rain: 0.19 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 2 hrs
  • Hours of Rain: 2 hrs

Temperature History - May 27

more Historical Weather Data >
  Today Normal Record 5/27/2015
High 78° 74° N/A 74°
Low 65° 52° N/A 56°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:20 AM with 14:58 of sunlight, then sets at 8:18 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:06 AM with 10:30 of moolight, then sets at 10:36 AM

Lake Forest Weather Report

Chicago: Heat, humidity to unfold for Memorial Day

May 27, 2016; 5:40 PM ET

The unofficial start of summer will feel like the upcoming season on Monday in the Chicago area. more >

Flu Season is Just Around the Corner

Sep 11, 2012; 2:00 PM ET The peak of flu season may not be until January, but preparations should begin now. Adrienne Veilleux has more.

Fri. Cold & Flu

Fri. UV Index