• Today

    Aug 24

    84°Lo 71°

    A few strong thunderstorms

    High ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      5 - High
    • Tree
      Pollen
      1 - Low
  • Thu

    Aug 25

    81°Lo 60°

    Mostly cloudy with a t-storm

    High ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      5 - High
    • Tree
      Pollen
      1 - Low
    more
  • Fri

    Aug 26

    78°Lo 61°

    Periods of sun; less humid

    High ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      5 - High
    • Tree
      Pollen
      1 - Low
    more
  • Sat

    Aug 27

    81°Lo 68°

    An afternoon thunderstorm

    High ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      5 - High
    • Tree
      Pollen
      1 - Low
    more
  • Sun

    Aug 28

    84°Lo 66°

    Periods of sun with a t-storm

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
2pm
3pm 4pm 5pm 6pm 7pm 8pm 9pm
  2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm
Forecast
Cloudy
Mostly Cloudy
Mostly Cloudy
T-storms
Mostly Cloudy
Cloudy
T-storms
Cloudy
Temp (°F) 81° 83° 84° 81° 81° 80° 79° 77°
RealFeel® 88° 90° 90° 86° 90° 88° 81° 84°
Humidity 81% 78% 76% 91% 89% 88% 88% 91%
   
  2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm
Rain
 
34%
 
34%
 
40%
 
51%
 
47%
 
47%
 
51%
 
47%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm
Wind (mph) 17 SSW 17 SSW 16 SSW 14 SSW 10 S 8 S 8 S 7 SSW
UV Index 2 3 2 1 1 0 0 0
Cloud Cover 93% 85% 80% 80% 84% 90% 94% 94%
Dew Point 75° 75° 75° 78° 77° 76° 75° 75°
Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F

Temperature History - Aug 24

more Historical Weather Data >
  Today Normal Record 8/24/2015
High 84° 82° 103° (1947) 74°
Low 71° 62° 43° (1942) 55°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:14 AM with 13:26 of sunlight, then sets at 7:40 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:52 PM with 14:30 of moolight, then sets at 2:22 PM

Ottawa Weather Report

Strong thunderstorms to target from St. Louis to Chicago into Thursday

August 24, 2016; 6:15 AM ET

Rounds of showers and thunderstorms will bring the potential for flash flooding and localized damaging wind gusts through Thursday. more >

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps