• Tonight

    Sep 19

    Lo 59°

    Some clouds; breezy

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      62°
    • Hi
      RealFeel
      71°
    • Wind
      Speed
      12 mph
    more
  • Sat

    Sep 20

    77°Lo 57°

    Heavy thunderstorms

    Poor for home energy
    • Avg
      RealFeel
      63°
    • Hi
      RealFeel
      76°
    • Wind
      Speed
      12 mph
    more
  • Sun

    Sep 21

    69°Lo 46°

    Breezy with clouds breaking

    Poor for home energy
    • Avg
      RealFeel
      56°
    • Hi
      RealFeel
      67°
    • Wind
      Speed
      12 mph
  • Mon

    Sep 22

    69°Lo 47°

    Times of clouds and sun

    Poor for home energy
    • Avg
      RealFeel
      58°
    • Hi
      RealFeel
      70°
    • Wind
      Speed
      5 mph
    more
  • Tue

    Sep 23

    72°Lo 49°

    Mostly sunny

    Poor for home energy
    • Avg
      RealFeel
      62°
    • Hi
      RealFeel
      76°
    • Wind
      Speed
      4 mph
    more
Next Previous
Hi 69° RealFeel® 67° Precipitation 9%

Day

N

E

S

W

  • NW 12 mph
  • Gusts: 23 mph

Breezy and less humid with clouds giving way to some sun

  • Max UV Index: 4 (Moderate)
  • Thunderstorms: 9%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 46° RealFeel® 44° Precipitation 2%

Night

N

E

S

W

  • WNW 5 mph
  • Gusts: 11 mph

Clear

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

Temperature History - Sep 21

more Historical Weather Data >
  Today Normal Record 9/21/2013
High 69° 70° N/A 60°
Low 46° 46° N/A 43°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:39 AM with 12:14 of sunlight, then sets at 6:53 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:11 AM with 13:19 of moolight, then sets at 5:30 PM

Top Story

Mchenry Weather Report

Chicago: Thunderstorms to Precede More Cool Air

September 19, 2014; 9:28 PM ET

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

Sun. Home Energy Efficiency

Sun. Degree Days

Sun. UV Index