• Early AM

    Aug 31

    Lo 69°

    Partly cloudy

    Ragweed Pollen Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
    more
  • Today

    Aug 31

    80°Lo 70°

    Humid with clouds and sun

    High ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      70 - High
    • Tree
      Pollen
      0 - Low
    more
  • Mon

    Sep 1

    80°Lo 68°

    A strong thunderstorm

    High ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      70 - High
    • Tree
      Pollen
      0 - Low
  • Tue

    Sep 2

    76°Lo 64°

    Times of clouds and sun

    Moderate ragweed pollen levels
    • Precip
      25%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      52%
    more
  • Wed

    Sep 3

    79°Lo 70°

    Partly sunny and pleasant

    High ragweed pollen levels
    • Precip
      12%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      26%
    more
Next Previous
Hi 80° RealFeel® 80° Precipitation 56%

Day

N

E

S

W

  • SW 12 mph
  • Gusts: 21 mph

Mostly cloudy, a strong t-storm; humid; storms can bring downpours, large hail and damaging winds

  • Max UV Index: 3 (Moderate)
  • Thunderstorms: 95%
  • Precipitation: 0.29 in
  • Rain: 0.29 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 2 hrs
  • Hours of Rain: 2 hrs
Lo 68° RealFeel® 67° Precipitation 66%

Night

N

E

S

W

  • WSW 6 mph
  • Gusts: 13 mph

Watch for strong thunderstorms; mostly cloudy and humid

  • Max UV Index: N/A
  • Thunderstorms: 95%
  • Precipitation: 0.77 in
  • Rain: 0.77 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 3 hrs
  • Hours of Rain: 3 hrs

Chicago Pollen Levels - September 1

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

    Pollen

    Low

  • Weed

    Pollen

    High

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Sep 1

more Historical Weather Data >
  Today Normal Record 9/1/2013
High 80° 80° N/A 85°
Low 68° 60° N/A 65°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:17 AM with 13:09 of sunlight, then sets at 7:26 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:09 PM with 10:10 of moolight, then sets at 11:19 PM

Top Story

Chicago Weather Report

Severe Storms to Threaten Chicago on Labor Day

August 30, 2014; 8:55 PM ET

Chicago will become the target of severe thunderstorms as the Labor Day holiday weekend comes to an end, creating dangers for those with outdoor plans. more >

Mon. Pollen

Mon. Dust & Dander

Mon. Wind Maps