• Today

    Aug 20

    87°Lo 70°

    Times of sun and clouds

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

    Aug 21

    88°Lo 73°

    An a.m. t-storm; partly sunny

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

    Aug 22

    91°Lo 72°

    A thunderstorm in the area

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

    Aug 23

    91°Lo 71°

    Clouds and sun, hot and humid

    Moderate ragweed pollen levels
    • Precip
      25%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      46%
    more
  • Sun

    Aug 24

    92°Lo 69°

    Periods of sun; hot, humid

    Ragweed Pollen Weather
    • Precip
      17%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      46%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
5am
6am 7am 8am 9am 10am 11am 12pm
  5am 6am 7am 8am 9am 10am 11am 12pm
Forecast
Cloudy
T-storms
Partly Cloudy
Partly Cloudy
T-storms
Partly Cloudy
Partly Cloudy
Partly Cloudy
Temp (°F) 71° 70° 71° 72° 74° 77° 80° 82°
RealFeel® 71° 69° 71° 75° 77° 84° 90° 92°
Humidity 92% 93% 93% 92% 90% 87% 82% 75%
   
  5am 6am 7am 8am 9am 10am 11am 12pm
Rain
 
47%
 
51%
 
47%
 
47%
 
51%
 
47%
 
34%
 
34%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  5am 6am 7am 8am 9am 10am 11am 12pm
Wind (mph) 4 SSW 4 S 5 SSE 5 S 6 S 6 S 7 S 7 S
UV Index 0 0 0 1 1 3 4 5
Cloud Cover 70% 70% 70% 70% 70% 70% 70% 70%
Dew Point 68° 68° 69° 70° 71° 73° 74° 73°
Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - Aug 21

more Historical Weather Data >
  Today Normal Record 8/21/2013
High 88° 82° 101° (1947) 90°
Low 73° 62° 46° (1950) 58°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:10 AM with 13:36 of sunlight, then sets at 7:46 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:40 AM with 14:35 of moolight, then sets at 5:15 PM

Top Story

Ottawa Weather Report

Chicago: Threat of Thunderstorms Lingers After Heavy Rains Flood Wrigley Field

August 20, 2014; 4:24 PM ET

While there may be a mix of sunshine and clouds over the area, Chicago is facing more rounds of thunderstorms over the next several days. more >

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps