• Early AM

    Sep 1

    Lo 70°

    Areas of fog

    Ragweed Pollen Weather
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Today

    Sep 1

    90°Lo 70°

    Hazy sun, very warm and humid

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Wed

    Sep 2

    91°Lo 70°

    Fog in the a.m.; partly sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Thu

    Sep 3

    90°Lo 68°

    Mostly sunny and very warm

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Fri

    Sep 4

    90°Lo 67°

    Mostly sunny and hot

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
Next Previous
Partly to mostly cloudy 71° Lo 67° RealFeel® 72° / 67°

N

E

S

W

  • Precipitation: 10%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 88%
  • Cloud Cover: 49%
  • Dew Point: 66° F
  • Visibility: 10 mi
5 mph

Temperature History - Sep 4

more Historical Weather Data >
  Today Normal Record 9/4/2014
High 90° 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; 4:41 AM ET

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

Fri. Dust & Dander

Fri. Wind Maps