• Early AM

    Aug 20

    Lo 62°

    Mainly clear

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      74°
    • Hi
      RealFeel
      86°
    • Wind
      Speed
      1 mph
    more
  • Today

    Aug 20

    85°Lo 70°

    Variable cloudiness

    Poor for home energy
    • Avg
      RealFeel
      79°
    • Hi
      RealFeel
      89°
    • Wind
      Speed
      4 mph
  • Thu

    Aug 21

    86°Lo 71°

    Periods of sun with a t-storm

    Poor for home energy
    • Avg
      RealFeel
      83°
    • Hi
      RealFeel
      93°
    • Wind
      Speed
      6 mph
    more
  • Fri

    Aug 22

    90°Lo 71°

    A thunderstorm in spots

    Fair for home energy
    • Avg
      RealFeel
      88°
    • Hi
      RealFeel
      103°
    • Wind
      Speed
      5 mph
    more
  • Sat

    Aug 23

    89°Lo 69°

    A p.m. t-storm possible

    Poor for home energy
    • Avg
      RealFeel
      84°
    • Hi
      RealFeel
      99°
    • Wind
      Speed
      5 mph
    more
Next Previous
Hi 85° RealFeel® 89° Precipitation 14%

Day

N

E

S

W

  • WSW 4 mph
  • Gusts: 9 mph

Variable cloudiness

  • Max UV Index: 6 (High)
  • 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® 68° Precipitation 60%

Night

N

E

S

W

  • N 2 mph
  • Gusts: 4 mph

Partly cloudy and humid with a couple of showers and a thunderstorm

  • Max UV Index: N/A
  • Thunderstorms: 60%
  • Precipitation: 0.2 in
  • Rain: 0.2 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 2 hrs
  • Hours of Rain: 2 hrs

Temperature History - Aug 20

more Historical Weather Data >
  Today Normal Record 8/20/2013
High 85° 82° 97° (1983) 87°
Low 70° 63° 51° (2012) 60°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:06 AM with 13:39 of sunlight, then sets at 7:45 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:45 AM with 14:45 of moolight, then sets at 4:30 PM

Top Story

Joliet Weather Report

Chicago: Chance of Showers, Thunderstorms to Remain Through Thursday

August 19, 2014; 7:53 PM ET

There will be an uptick in humidity and storms in Chicago for much of this week. more >

Energy Efficient Lightbulbs and S.A.D

Sep 8, 2012; 5:00 AM ET With shorter days and colder nights in the fall and winter, some people develop seasonal affective disorder. When shopping for lightbulbs to treat the 'winter blues,'consider energy-efficient bulbs.

Wed. Home Energy Efficiency

Wed. Degree Days

Wed. UV Index