• Early AM

    Oct 21

    Lo 41°

    Partly cloudy

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      50°
    • Hi
      RealFeel
      63°
    • Wind
      Speed
      6 mph
    more
  • Today

    Oct 21

    57°Lo 36°

    Partly sunny

    Poor for home energy
    • Avg
      RealFeel
      46°
    • Hi
      RealFeel
      56°
    • Wind
      Speed
      8 mph
    more
  • Wed

    Oct 22

    59°Lo 37°

    Plenty of sun

    Poor for home energy
    • Avg
      RealFeel
      49°
    • Hi
      RealFeel
      62°
    • Wind
      Speed
      5 mph
    more
  • Thu

    Oct 23

    62°Lo 48°

    A brief shower or two

    Poor for home energy
    • Avg
      RealFeel
      53°
    • Hi
      RealFeel
      61°
    • Wind
      Speed
      7 mph
  • Fri

    Oct 24

    68°Lo 49°

    A full day of sunshine

    Poor for home energy
    • Avg
      RealFeel
      57°
    • Hi
      RealFeel
      67°
    • Wind
      Speed
      6 mph
    more
Next Previous
Hi 62° RealFeel® 61° Precipitation 55%

Day

N

E

S

W

  • SSW 7 mph
  • Gusts: 12 mph

Variable clouds with a brief shower or two

  • Max UV Index: 2 (Low)
  • Thunderstorms: 20%
  • Precipitation: 0.04 in
  • Rain: 0.04 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 2 hrs
  • Hours of Rain: 2 hrs
Lo 48° RealFeel® 45° Precipitation 14%

Night

N

E

S

W

  • SW 6 mph
  • Gusts: 8 mph

Areas of low clouds

  • Max UV Index: N/A
  • Thunderstorms: 20%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Oct 23

more Historical Weather Data >
  Today Normal Record 10/23/2013
High 62° 62° 87° (1963) 49°
Low 48° 40° 21° (1895) 32°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:15 AM with 10:49 of sunlight, then sets at 6:04 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:56 AM with 11:35 of moolight, then sets at 5:31 PM

Ottawa Weather Report

Cool Weather Ahead for Chicago

October 20, 2014; 9:18 AM ET

Seasonable temperatures will be the rule this week across Chicagoland. 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.

Thu. Home Energy Efficiency

Thu. Degree Days

Thu. UV Index