• Today

    Oct 21

    58°Lo 37°

    Partly sunny

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

    Oct 22

    59°Lo 37°

    Plenty of sun

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

    Oct 23

    58°Lo 48°

    A brief shower or two

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

    Oct 24

    66°Lo 47°

    Partly sunny and warmer

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

    Oct 25

    72°Lo 51°

    Warm with periods of sun

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
Next Previous
Hi 58° RealFeel® 56° Precipitation 0%

Day

N

E

S

W

  • NNE 9 mph
  • Gusts: 23 mph

Partly sunny

  • Max UV Index: 3 (Moderate)
  • 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 37° RealFeel® 37° Precipitation 0%

Night

N

E

S

W

  • ENE 4 mph
  • Gusts: 9 mph

Mainly clear and chilly

  • 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 - Oct 21

more Historical Weather Data >
  Today Normal Record 10/21/2013
High 58° 63° 87° (1979) 52°
Low 37° 41° 21° (1925) 29°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:14 AM with 10:52 of sunlight, then sets at 6:06 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:57 AM with 12:03 of moolight, then sets at 5:00 PM

Ottawa Weather Report

Cool Weather Ahead for Chicago

October 21, 2014; 6:01 AM ET

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

48 Hour Precipitation Forecast

Tue. Snow Day Potential