• Tonight

    Sep 2

    Lo 58°

    Clear

    Ragweed Pollen Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      70 - High
    • Tree
      Pollen
      0 - Low
    more
  • Wed

    Sep 3

    85°Lo 69°

    Partly sunny and warm

    High ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      70 - High
    • Tree
      Pollen
      0 - Low
    more
  • Thu

    Sep 4

    89°Lo 71°

    Partly sunny, warm and humid

    High ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      70 - High
    • Tree
      Pollen
      0 - Low
  • Fri

    Sep 5

    79°Lo 58°

    Not as warm with a t-storm

    High ragweed pollen levels
    • Precip
      57%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      78%
    more
  • Sat

    Sep 6

    73°Lo 52°

    Beautiful with clouds and sun

    Ragweed Pollen Weather
    • Precip
      11%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      46%
    more
Next Previous
Hi 89° RealFeel® 96° Precipitation 25%

Day

N

E

S

W

  • S 11 mph
  • Gusts: 19 mph

Very warm and humid with intervals of clouds and sunshine

  • Max UV Index: 5 (Moderate)
  • 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 71° RealFeel® 69° Precipitation 62%

Night

N

E

S

W

  • W 8 mph
  • Gusts: 16 mph

Rather cloudy, warm and humid with a couple of thunderstorms around

  • Max UV Index: N/A
  • Thunderstorms: 60%
  • Precipitation: 0.42 in
  • Rain: 0.42 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 4 hrs
  • Hours of Rain: 4 hrs

Temperature History - Sep 4

more Historical Weather Data >
  Today Normal Record 9/4/2013
High 89° 80° 102° (1925) 85°
Low 71° 59° 41° (1928) 53°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:24 AM with 13:00 of sunlight, then sets at 7:24 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:02 PM with 10:16 of moolight, then sets at 2:18 AM

Top Story

Ottawa Weather Report

Chicago: Cooler, Less Humid Air to Return by Late Week

September 2, 2014; 6:11 PM ET

While Labor Day marks an unofficial end to the summer, the Chicago area will see warm, humid conditions continue before temperatures slide late in the week. more >

Thu. Dust & Dander

Thu. Wind Maps