• Tonight

    Sep 1

    Lo 69°

    Mainly clear, warm; fog late

    Migraine Headache Weather
    • Hi
      RealFeel
      98°
    • UV
      5 - High
    • Cloud
      Cover
      44%
    more
  • Wed

    Sep 2

    90°Lo 69°

    Fog in the a.m.; partly sunny

    Beneficial weather for migraines
    • Hi
      RealFeel
      97°
    • UV
      5 - High
    • Cloud
      Cover
      39%
    more
  • Thu

    Sep 3

    87°Lo 67°

    Partly sunny and very warm

    Beneficial weather for migraines
    • Hi
      RealFeel
      98°
    • UV
      5 - High
    • Cloud
      Cover
      26%
    more
  • Fri

    Sep 4

    88°Lo 67°

    Mostly sunny and very warm

    Beneficial weather for migraines
    • Hi
      RealFeel
      98°
    • UV
      5 - High
    • Cloud
      Cover
      20%
  • Sat

    Sep 5

    88°Lo 62°

    Sunshine, very warm and humid

    Beneficial weather for migraines
    • Hi
      RealFeel
      96°
    • UV
      5 - High
    • Cloud
      Cover
      21%
    more
Next Previous
Partly cloudy 79° Lo 72° RealFeel® 82° / 74°

N

E

S

W

  • Precipitation: 20%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 82%
  • Cloud Cover: 45%
  • Dew Point: 69° F
  • Visibility: 10 mi
5 mph

Temperature History - Sep 4

more Historical Weather Data >
  Today Normal Record 9/4/2014
High 88° 80° 102° (1925) 86°
Low 67° 59° 41° (1928) 68°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:24 AM with 13:00 of sunlight, then sets at 7:24 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:32 PM with 14:38 of moolight, then sets at 2:10 PM

Ottawa Weather Report

Chicago: More Foggy Mornings in Store as Heat Holds on

September 1, 2015; 5:41 PM ET

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

Fri. Migraine Headache

Fri. UV Index