• Today

    Aug 4

    82°Lo 58°

    Partly sunny and delightful

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      3 - Moderate
  • Wed

    Aug 5

    85°Lo 66°

    Mostly cloudy

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      3 - Moderate
    more
  • Thu

    Aug 6

    81°Lo 64°

    Mostly cloudy and humid

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

    Aug 7

    84°Lo 66°

    Some sun, a t-storm; humid

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

    Aug 8

    85°Lo 67°

    Mostly sunny and humid

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Clouds and sun 81° RealFeel® 84°

N

E

S

W

  • Humidity: 45%
  • Pressure: 30.02 in ↑
  • UV Index: 5
  • Cloud Cover: 60%
  • Ceiling: 21700 ft
  • Dew Point: 58° F
  • Visibility: 6 mi
9 mph

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:53 AM with 14:16 of sunlight, then sets at 8:09 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:48 PM with 13:14 of moolight, then sets at 12:02 PM

Temperature Summary - 2:42 PM

  Temp (°F)
Now 81°
Yesterday 81°
RealFeel® 84°
RealFeel® Shade 77°
Wind Chill 81°
Dew Point 58°
  Hi / Lo
Previous 6 Hours 81°
  69°
Previous 12 Hours 81°
  57°
Previous 24 Hours 81°
  57°

Temperature History - Aug 4

more Historical Weather Data >
  Today Normal Record 8/4/2014
High 82° 83° 103° (1947) 86°
Low 58° 64° 46° (1912) 66°

Precipitation Summary - 2:42 PM

  Amount (in)
Previous 1 Hour 0
Previous 3 Hours 0
Previous 6 Hours 0
Previous 9 Hours 0
Previous 12 Hours 0
Previous 18 Hours 0
Previous 24 Hours 0

Ottawa Weather Report

Chicago: Cooler Conditions to Last Through Week

August 4, 2015; 11:40 AM ET

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

Tue. Pollen

Tue. Dust & Dander

Tue. Wind Maps