• Today

    Dec 18

    30°Lo 19°

    Mostly cloudy

    Poor for lawn mowing
    • Hours of Precip
      0
    • Precip
      14%
    • Hi
      RealFeel
      32°
    more
  • Fri

    Dec 19

    33°Lo 24°

    Mostly cloudy

    Poor for lawn mowing
    • Hours of Precip
      0
    • Precip
      1%
    • Hi
      RealFeel
      37°
    more
  • Sat

    Dec 20

    37°Lo 25°

    Clouds giving way to some sun

    Poor for lawn mowing
    • Hours of Precip
      0
    • Precip
      10%
    • Hi
      RealFeel
      39°
    more
  • Sun

    Dec 21

    40°Lo 30°

    Mostly cloudy

    Poor for lawn mowing
    • Hours of Precip
      0
    • Precip
      12%
    • Hi
      RealFeel
      31°
    more
  • Mon

    Dec 22

    42°Lo 36°

    Cloudy, afternoon rain

    Poor for lawn mowing
    • Hours of Precip
      6.5
    • Precip
      75%
    • Hi
      RealFeel
      31°
Next Previous
A chance of rain 38° Lo 36° RealFeel® 27° / 26°

N

E

S

W

  • Precipitation: 55%
  • Rain: 0.05 in
  • Snow: 0 in
  • Humidity: 92%
  • Cloud Cover: 97%
  • Dew Point: 35° F
  • Visibility: 7 mi
12 mph

Temperature History - Dec 22

more Historical Weather Data >
  Today Normal Record 12/22/2013
High 42° 34° 58° (1957) 33°
Low 36° 18° -19° (1989)

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:18 AM with 9:12 of sunlight, then sets at 4:30 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 7:30 AM with 10:10 of moolight, then sets at 5:40 PM

Ottawa Weather Report

Chicago: White Christmas in the Offing

December 18, 2014; 12:30 PM ET

While the next couple of days will be tranquil for the Chicago area, Christmas Eve could deliver enough snow to blanket the city. more >

Why Do Leaves Change Color?

Sep 20, 2011; 5:00 AM ET Why do leaves change from green to beautiful shades of red, orange and yellow in the fall?

Mon. Degree Days

Mon. Evapotranspiration