• Early AM

    Sep 1

    Lo 67°

    Areas of fog

    Sinus Headache Weather
    • Hi
      RealFeel
      88°
    • UV
      4 - Moderate
    • Cloud
      Cover
      13%
    more
  • Today

    Sep 1

    87°Lo 70°

    Fog in the morning; hazy sun

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      94°
    • UV
      4 - Moderate
    • Cloud
      Cover
      21%
    more
  • Wed

    Sep 2

    87°Lo 68°

    Partly sunny, warm and humid

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      96°
    • UV
      5 - High
    • Cloud
      Cover
      44%
    more
  • Thu

    Sep 3

    84°Lo 66°

    Times of clouds and sun

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      94°
    • UV
      4 - Moderate
    • Cloud
      Cover
      10%
    more
  • Fri

    Sep 4

    84°Lo 66°

    Sunny, very warm and humid

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      94°
    • UV
      5 - High
    • Cloud
      Cover
      49%
Next Previous
Hi 84° RealFeel® 94° Precipitation 9%

Day

N

E

S

W

  • SE 5 mph
  • Gusts: 8 mph

Very warm and humid with plenty of sunshine

  • 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® 65° Precipitation 13%

Night

N

E

S

W

  • SSE 4 mph
  • Gusts: 6 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 - Sep 4

more Historical Weather Data >
  Today Normal Record 9/4/2014
High 84° 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: More Foggy Mornings in Store as Heat Holds on

September 1, 2015; 3:51 AM ET

Chicagoans can expect to begin September with a stretch of higher temperatures, increasing humidity and more foggy mornings. 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