• Today

    Sep 1

    79°Lo 58°

    An afternoon thunderstorm

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

    Sep 2

    77°Lo 58°

    Periods of sun; less humid

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

    Sep 3

    80°Lo 66°

    Partly sunny and more humid

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

    Sep 4

    83°Lo 66°

    Times of clouds and sun

    High ragweed pollen levels
    • Precip
      25%
    • Wind
      Speed
      12 mph
    • Cloud
      Cover
      70%
  • Fri

    Sep 5

    75°Lo 56°

    Not as warm with a t-storm

    Ragweed Pollen Weather
    • Precip
      62%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      70%
    more
Next Previous
Hi 83° RealFeel® 86° Precipitation 25%

Day

N

E

S

W

  • SSW 12 mph
  • Gusts: 21 mph

Warm and humid with intervals of clouds and sunshine

  • Max UV Index: 4 (Moderate)
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 66° RealFeel® 64° Precipitation 40%

Night

N

E

S

W

  • W 8 mph
  • Gusts: 13 mph

Mainly cloudy, warm and humid; watch for a strong late-night thunderstorm

  • Max UV Index: N/A
  • Thunderstorms: 95%
  • Precipitation: 0.1 in
  • Rain: 0.1 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs

Temperature History - Sep 4

more Historical Weather Data >
  Today Normal Record 9/4/2013
High 83° 79° 93° (2012) 81°
Low 66° 57° 41° (1974) 56°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:23 AM with 13:01 of sunlight, then sets at 7:24 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:03 PM with 10:13 of moolight, then sets at 2:16 AM

Top Story

DeKalb Weather Report

Severe Storms to Threaten Chicago on Labor Day

September 1, 2014; 9:40 AM 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 >

Thu. Dust & Dander

Thu. Wind Maps