• Thu

    Aug 13

    82°Lo 56°

    Variable clouds with a shower

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Fri

    Aug 14

    73°Lo 59°

    Cooler with occasional rain

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Sat

    Aug 15

    78°Lo 56°

    Partly sunny, a stray t-storm

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
  • Sun

    Aug 16

    79°Lo 57°

    Some sun with a shower

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Mon

    Aug 17

    82°Lo 61°

    Partly sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Hi 78° RealFeel® 85° Precipitation 41%

Day

N

E

S

W

  • N 4 mph
  • Gusts: 13 mph

Partly sunny with a thunderstorm in parts of the area

  • Max UV Index: 7 (High)
  • Thunderstorms: 60%
  • Precipitation: 0.1 in
  • Rain: 0.1 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1.5 hrs
  • Hours of Rain: 1.5 hrs
Lo 56° RealFeel® 55° Precipitation 9%

Night

N

E

S

W

  • N 5 mph
  • Gusts: 10 mph

Partly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Aug 15

more Historical Weather Data >
  Today Normal Record 8/15/2014
High 78° 83° 100° (1944) 76°
Low 56° 63° 47° (2004) 54°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:04 AM with 13:51 of sunlight, then sets at 7:55 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 7:05 AM with 13:14 of moolight, then sets at 8:19 PM

Ottawa Weather Report

Chicago: Cooler Conditions to Last Through Week

August 3, 2015; 6:56 PM ET

The Chicagoland area will experience cooler weather throughout the week. more >