• Sat

    Sep 12

    74°Lo 50°

    Sunshine

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
  • Sun

    Sep 13

    74°Lo 55°

    Considerable cloudiness

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Mon

    Sep 14

    73°Lo 52°

    Sunshine and some clouds

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Tue

    Sep 15

    70°Lo 46°

    Mostly sunny

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Wed

    Sep 16

    73°Lo 54°

    Cloudy

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
Next Previous
Hi 74° RealFeel® 79° Precipitation 0%

Day

N

E

S

W

  • ENE 4 mph
  • Gusts: 10 mph

Sunshine

  • Max UV Index: 6 (High)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 50° RealFeel® 47° Precipitation 0%

Night

N

E

S

W

  • SE 6 mph
  • Gusts: 12 mph

Clear

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • 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 12

more Historical Weather Data >
  Today Normal Record 9/12/2014
High 74° 78° 97° (1927) 56°
Low 50° 56° 37° (1898) 38°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:32 AM with 12:38 of sunlight, then sets at 7:10 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:56 AM with 12:56 of moolight, then sets at 6:52 PM

Ottawa Weather Report

Chicago: Sun, Humidity to Grip Region Before Stormy Labor Day

September 2, 2015; 7:34 AM ET

As the Labor Day weekend shapes up, Chicago residents will see mostly sunny and humid conditions until the holiday itself on Monday. more >

The 540 Snow Line

Dec 20, 2012; 5:00 AM ET The 540 line is often used by meteorologists to determine the chances of rain vs. snow.