• Today

    Aug 30

    82°Lo 66°

    A couple of thunderstorms

    Moderate ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
    more
  • Sun

    Aug 31

    86°Lo 69°

    Partly sunny and humid

    Moderate ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
    more
  • Mon

    Sep 1

    83°Lo 62°

    Mostly cloudy with t-storms

    Moderate ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
    more
  • Tue

    Sep 2

    80°Lo 60°

    Periods of sun

    Moderate ragweed pollen levels
    • Precip
      20%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      46%
    more
  • Wed

    Sep 3

    85°Lo 68°

    Mostly sunny

    Ragweed Pollen Weather
    • Precip
      25%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      18%
Next Previous
Hi 85° RealFeel® 88° Precipitation 25%

Day

N

E

S

W

  • S 7 mph
  • Gusts: 12 mph

Mostly sunny

  • Max UV Index: 6 (High)
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 68° RealFeel® 66° Precipitation 60%

Night

N

E

S

W

  • SSW 5 mph
  • Gusts: 9 mph

Patchy clouds, warm and humid with a couple of thunderstorms around

  • Max UV Index: N/A
  • Thunderstorms: 60%
  • Precipitation: 0.23 in
  • Rain: 0.23 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 3 hrs
  • Hours of Rain: 3 hrs

Temperature History - Sep 3

more Historical Weather Data >
  Today Normal Record 9/3/2013
High 85° 81° 98° (1925) 75°
Low 68° 59° 42° (1974) 51°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:23 AM with 13:02 of sunlight, then sets at 7:25 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:09 PM with 10:04 of moolight, then sets at 1:13 AM

Top Story

Ottawa Weather Report

Chicago: Thunderstorms May Dampen Labor Day Plans

August 29, 2014; 2:08 PM ET

Thunderstorms and showers will persist in the Chicago area throughout the holiday weekend, bringing the risk of disrupting outdoor activities and weekend plans. more >

Wed. Dust & Dander

Wed. Wind Maps