• Tonight

    Sep 3

    Lo 70°

    A thunderstorm in spots early

    Ragweed Pollen Weather
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
  • Fri

    Sep 4

    82°Lo 71°

    Periods of sun with a t-storm

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

    Sep 5

    87°Lo 73°

    Partly sunny, warm and humid

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

    Sep 6

    88°Lo 76°

    Mostly sunny, warm and humid

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

    Sep 7

    86°Lo 72°

    A t-storm in the afternoon

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Hi 90° RealFeel® 95° Precipitation 50%

Day

N

E

S

W

  • SW 9 mph
  • Gusts: 16 mph

Hot and humid with clouds and sunshine; a shower or thunderstorm late this afternoon

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 60%
  • Precipitation: 0.05 in
  • Rain: 0.05 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0.5 hrs
Lo 70° RealFeel® 70° Precipitation 40%

Night

N

E

S

W

  • WNW 5 mph
  • Gusts: 12 mph

A shower or thunderstorm in spots early this evening; otherwise, partly cloudy, warm and humid

  • Max UV Index: N/A
  • Thunderstorms: 40%
  • Precipitation: 0.04 in
  • Rain: 0.04 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0.5 hrs

Chicago Pollen Levels - September 3

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Grass Pollen

    Low

  • Tree Pollen

    Low

  • Ragweed Pollen

    Low

  • Mold Pollen

    Low

Temperature History - Sep 3

more Historical Weather Data >
  Today Normal Record 9/3/2014
High 90° 80° 97° (1953) 85°
Low 70° 63° 47° (1974) 67°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:19 AM with 13:03 of sunlight, then sets at 7:22 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:41 PM with 14:27 of moolight, then sets at 1:08 PM

Chicago Weather Report

Chicago: Sun, Humidity to Grip Region Before Stormy Labor Day

September 3, 2015; 5:03 PM ET

As the Labor Day weekend shapes up, Chicago residents will see mostly sunny and humid conditions until the holiday itself on Monday. more >

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps