• Today

    Sep 2

    81°Lo 58°

    A thunderstorm in spots

    Advisory for hair frizz
    • Wind
      Gust
      9 mph
    • Precip
      40%
    • Hours of Precip
      0.5
    more
  • Wed

    Sep 3

    82°Lo 69°

    Partly sunny and more humid

    Advisory for hair frizz
    • Wind
      Gust
      13 mph
    • Precip
      13%
    • Hours of Precip
      2
    more
  • Thu

    Sep 4

    89°Lo 70°

    Times of sun and clouds

    Warning for hair frizz
    • Wind
      Gust
      20 mph
    • Precip
      25%
    • Hours of Precip
      1
  • Fri

    Sep 5

    76°Lo 56°

    Not as warm with t-storms

    Warning for hair frizz
    • Wind
      Gust
      12 mph
    • Precip
      64%
    • Hours of Precip
      3
    more
  • Sat

    Sep 6

    71°Lo 51°

    Mostly sunny and pleasant

    Watch for hair frizz
    • Wind
      Gust
      10 mph
    • Precip
      11%
    • Hours of Precip
      0
    more
Next Previous
Hi 89° RealFeel® 95° Precipitation 25%

Day

N

E

S

W

  • S 11 mph
  • Gusts: 20 mph

Warmer and humid with intervals of clouds and sunshine

  • Max UV Index: 5 (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 70° RealFeel® 69° Precipitation 55%

Night

N

E

S

W

  • W 7 mph
  • Gusts: 12 mph

Turning cloudy, warm and humid; occasional rain and a thunderstorm late

  • Max UV Index: N/A
  • Thunderstorms: 60%
  • 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 89° 79° N/A 81°
Low 70° 60° N/A 49°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:22 AM with 13:00 of sunlight, then sets at 7:22 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:01 PM with 10:14 of moolight, then sets at 2:15 AM

Top Story

Aurora Weather Report

Chicago: Cooler, Less Humid Air to Return by Late Week

September 2, 2014; 4:05 AM ET

While Labor Day marks an unofficial end to the summer, the Chicago area will see warm, humid conditions continue before temperatures slide late in the week. more >

The History Behind the UV Index

Nov 12, 2012; 5:00 AM ET The UV index has been around since the early 1990s. It was created to help you plan outdoor activities in hopes to limit overexposure to the sun. Jeannette Calle has more.

Thu. Hair Frizz

Thu. Wind Maps

Thu. UV Index