• Early AM

    Aug 21

    Lo 70°

    A shower or thunderstorm

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
    more
  • Today

    Aug 21

    89°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

    90°Lo 71°

    Hot and humid with some sun

    Moderate ragweed pollen levels
    • Precip
      25%
    • Wind
      Speed
      3 mph
    • Cloud
      Cover
      64%
    more
  • Sun

    Aug 24

    93°Lo 71°

    Periods of sun; hot, humid

    Moderate ragweed pollen levels
    • Precip
      17%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      46%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
11am
12pm 1pm 2pm 3pm 4pm 5pm 6pm
  11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm
Forecast
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Temp (°F) 80° 83° 86° 87° 89° 89° 88° 86°
RealFeel® 91° 94° 98° 98° 99° 96° 95° 93°
Humidity 80% 74% 68% 63% 61% 61% 64% 69%
   
  11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm
Rain
 
34%
 
34%
 
29%
 
20%
 
20%
 
20%
 
20%
 
20%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm
Wind (mph) 6 SW 6 SSW 6 SSW 7 SSW 7 SSW 8 SSW 7 SSW 7 SSW
UV Index 4 5 6 5 5 3 2 1
Cloud Cover 70% 70% 65% 62% 63% 65% 66% 66%
Dew Point 74° 74° 74° 73° 74° 74° 74° 75°
Middle Grid line 90 F Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F

Temperature History - Aug 21

more Historical Weather Data >
  Today Normal Record 8/21/2013
High 89° 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 21, 2014; 3:20 AM 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