• Thu

    Jul 17

    76°Lo 56°

    Times of clouds and sun

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

    Jul 18

    79°Lo 58°

    Plenty of sunshine

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

    Jul 19

    81°Lo 62°

    Partly sunny

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

    Jul 20

    83°Lo 60°

    An afternoon t-storm or two

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

    Jul 21

    76°Lo 66°

    A blend of sun and clouds

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
Next Previous
Hi 79° RealFeel® 85° Precipitation 20%

Day

N

E

S

W

  • ENE 4 mph
  • Gusts: 7 mph

Plenty of sunshine

  • Max UV Index: 8 (Very High)
  • Thunderstorms: 13%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 58° RealFeel® 57° Precipitation 21%

Night

N

E

S

W

  • E 3 mph
  • Gusts: 5 mph

Clear

  • Max UV Index: N/A
  • Thunderstorms: 10%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Jul 18

more Historical Weather Data >
  Today Normal Record 7/18/2013
High 79° 83° 98° (1930) 93°
Low 58° 63° 45° (1979) 74°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:30 AM with 14:48 of sunlight, then sets at 8:18 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at --:-- with of moolight, then sets at 12:52 PM

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Strong thunderstorms will threaten Chicago this weekend before the city gets a taste of September. 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.