• Today

    Aug 21

    89°Lo 73°

    A shower or t-storm in spots

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

    Aug 22

    92°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
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
    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
  • Mon

    Aug 25

    91°Lo 67°

    A stray afternoon t-storm

    Ragweed Pollen Weather
    • Precip
      43%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      29%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
7am
8am 9am 10am 11am 12pm 1pm 2pm
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Forecast
Partly Cloudy
Mostly Cloudy
Mostly Cloudy
Cloudy
T-storms
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Temp (°F) 71° 72° 73° 76° 78° 81° 85° 87°
RealFeel® 72° 74° 78° 84° 87° 91° 96° 98°
Humidity 93% 92% 90% 88% 85% 80% 69% 63%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Rain
 
49%
 
40%
 
34%
 
40%
 
51%
 
47%
 
43%
 
47%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Wind (mph) 4 SSE 4 ENE 5 ESE 6 SE 6 S 7 S 6 SSW 5 SW
UV Index 0 1 2 3 4 5 5 4
Cloud Cover 60% 88% 88% 93% 87% 88% 89% 88%
Dew Point 69° 69° 70° 72° 74° 74° 74° 73°
Middle Grid line 90 F Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 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; 12:59 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