• Early AM

    Sep 20

    Lo 60°

    Partly cloudy

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

    Sep 20

    74°Lo 59°

    Showers and a heavier t-storm

    Moderate ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
  • Sun

    Sep 21

    64°Lo 51°

    Some sun returning, a shower

    Moderate ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
    more
  • Mon

    Sep 22

    62°Lo 52°

    Times of clouds and sun

    Moderate ragweed pollen levels
    • Precip
      0%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      46%
    more
  • Tue

    Sep 23

    69°Lo 56°

    Mostly sunny and nice

    Moderate ragweed pollen levels
    • Precip
      5%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      11%
    more
Next Previous
Hi 74° RealFeel® 72° Precipitation 65%

Day

N

E

S

W

  • SW 12 mph
  • Gusts: 23 mph

Mostly cloudy; showers and a heavier t-storm this afternoon; thunderstorms can bring damaging winds

  • Max UV Index: 3 (Moderate)
  • Thunderstorms: 60%
  • Precipitation: 0.96 in
  • Rain: 0.96 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs
Lo 59° RealFeel® 54° Precipitation 55%

Night

N

E

S

W

  • W 8 mph
  • Gusts: 18 mph

A shower or thunderstorm around this evening; otherwise, cloudy

  • Max UV Index: N/A
  • Thunderstorms: 41%
  • 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

Chicago Pollen Levels - September 20

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

    Pollen

    Low

  • Weed

    Pollen

    Moderate

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Sep 20

more Historical Weather Data >
  Today Normal Record 9/20/2013
High 74° 73° N/A 76°
Low 59° 52° N/A 58°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:37 AM with 12:16 of sunlight, then sets at 6:53 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:14 AM with 13:44 of moolight, then sets at 4:58 PM

Top Story

Chicago Weather Report

Chicago: Thunderstorms to Precede More Cool Air

September 20, 2014; 2:18 AM ET

Chicago is facing the threat of some disruptive thunderstorms on Saturday. more >

Sat. Pollen

Sat. Dust & Dander

Sat. Wind Maps