• Today

    Oct 31

    42°Lo 27°

    Some sun, windy and colder

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

    Nov 1

    47°Lo 27°

    Partly sunny and chilly

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Sun

    Nov 2

    50°Lo 38°

    Mostly cloudy

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Mon

    Nov 3

    61°Lo 47°

    Warmer with clouds and sun

    Low ragweed pollen levels
    • Precip
      25%
    • Wind
      Speed
      14 mph
    • Cloud
      Cover
      69%
    more
  • Tue

    Nov 4

    55°Lo 39°

    Morning rain; mostly cloudy

    Ragweed Pollen Weather
    • Precip
      71%
    • Wind
      Speed
      15 mph
    • Cloud
      Cover
      94%
    more
Next Previous
< Previous 8 hours Next 8 hours >
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Forecast
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Partly Cloudy
Partly Cloudy
Mostly Clear
Mostly Clear
Mostly Clear
Temp (°F) 41° 42° 41° 40° 38° 36° 34° 34°
RealFeel® 28° 29° 27° 26° 24° 23° 21° 20°
Humidity 47% 46% 46% 48% 52% 55% 58% 61%
   
  2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm
Rain
 
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0%
Snow
 
0%
 
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Ice
 
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  2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm
Wind (mph) 23 NNW 23 NNW 22 NNW 20 NNW 17 N 15 N 15 N 15 N
UV Index 2 1 1 0 0 0 0 0
Cloud Cover 79% 80% 75% 58% 42% 26% 26% 26%
Dew Point 23° 23° 22° 22° 22° 21° 21° 22°
Middle Grid line 45 F Middle Grid line 40 F Middle Grid line 35 F Middle Grid line 30 F

Temperature History - Oct 31

more Historical Weather Data >
  Today Normal Record 10/31/2013
High 42° 58° 85° (1950) 62°
Low 27° 38° 16° (1925) 44°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:25 AM with 10:27 of sunlight, then sets at 5:52 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:09 PM with 11:09 of moolight, then sets at 1:18 AM

Ottawa Weather Report

Winds to Factor Into Wallenda's Tightrope Stunt Over the Chicago River

October 31, 2014; 1:25 PM ET

Winds may add more drama to Nik Wallenda's tightrope attempt 500 feet above the Chicago River on Sunday evening. more >

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps