• Fri

    Sep 4

    85°Lo 66°

    Sunshine and very warm

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      89°
    • UV
      5 - High
    • Cloud
      Cover
      22%
  • Sat

    Sep 5

    83°Lo 65°

    Partly sunny, warm and humid

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      87°
    • UV
      5 - High
    • Cloud
      Cover
      19%
    more
  • Sun

    Sep 6

    80°Lo 65°

    Mostly sunny and warm

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      83°
    • UV
      5 - High
    • Cloud
      Cover
      67%
    more
  • Mon

    Sep 7

    79°Lo 64°

    Chance for a strong t-storm

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      80°
    • UV
      4 - Moderate
    • Cloud
      Cover
      87%
    more
  • Tue

    Sep 8

    77°Lo 56°

    Low clouds and windy

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      73°
    • UV
      2 - Low
    • Cloud
      Cover
      27%
    more
Next Previous
Hi 85° RealFeel® 89° Precipitation 10%

Day

N

E

S

W

  • S 8 mph
  • Gusts: 13 mph

Very warm with sunshine and patchy clouds

  • Max UV Index: 6 (High)
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 66° RealFeel® 64° Precipitation 12%

Night

N

E

S

W

  • SSE 5 mph
  • Gusts: 9 mph

Mainly clear

  • Max UV Index: N/A
  • Thunderstorms: 6%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Sep 4

more Historical Weather Data >
  Today Normal Record 9/4/2014
High 85° 77° N/A 83°
Low 66° 59° N/A 67°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:19 AM with 13:02 of sunlight, then sets at 7:21 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:26 PM with 14:42 of moolight, then sets at 2:08 PM

Lake Forest Weather Report

Chicago: Heat, Humidity to Build Through Week

August 31, 2015; 12:40 AM ET

A turn to warmer conditions is in store for the Chicago area heading into the new week. more >

New Year, New You

Dec 24, 2012; 5:00 AM ET Start 2013 right with these tips on how to set realistic New Year's resolutions!

Fri. Sinus Headache

Fri. UV Index