• Today

    Sep 17

    66°Lo 53°

    Partly sunny and nice

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

    Sep 18

    64°Lo 53°

    Mostly sunny and nice

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

    Sep 19

    70°Lo 61°

    Partly sunny and nice

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

    Sep 20

    73°Lo 63°

    A couple of p.m. t-storms

    Moderate ragweed pollen levels
    • Precip
      60%
    • Wind
      Speed
      15 mph
    • Cloud
      Cover
      76%
    more
  • Sun

    Sep 21

    72°Lo 57°

    A morning shower possible

    Ragweed Pollen Weather
    • Precip
      30%
    • Wind
      Speed
      12 mph
    • Cloud
      Cover
      52%
    more
Next Previous
Hi 66° RealFeel® 71° Precipitation 3%

Day

N

E

S

W

  • WNW 5 mph
  • Gusts: 9 mph

Partly sunny and nice

  • Max UV Index: 4 (Moderate)
  • Thunderstorms: 7%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 53° RealFeel® 51° Precipitation 1%

Night

N

E

S

W

  • NE 3 mph
  • Gusts: 7 mph

Clear to partly cloudy

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

Chicago Pollen Levels - September 17

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

    Pollen

    Low

  • Weed

    Pollen

    Moderate

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Sep 17

more Historical Weather Data >
  Today Normal Record 9/17/2013
High 66° 74° N/A 71°
Low 53° 54° N/A 49°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:33 AM with 12:25 of sunlight, then sets at 6:58 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:29 AM with 14:42 of moolight, then sets at 3:11 PM

Top Story

Chicago Weather Report

Chicago: Cooler, Fall-Like Temperatures to Linger

September 17, 2014; 1:12 AM ET

The cooler, below-average conditions responsible for the fall-like feel will hold through the end of the week over the Chicago area. more >

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps