• Tonight

    Mar 27

    Lo 15°

    Clear and frigid

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
  • Sat

    Mar 28

    40°Lo 25°

    Abundant sunshine, but cold

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

    Mar 29

    50°Lo 32°

    Windy with a few showers

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

    Mar 30

    59°Lo 43°

    Sunny and milder

    Low ragweed pollen levels
    • Precip
      1%
    • Wind
      Speed
      10 mph
    • Cloud
      Cover
      9%
    more
  • Tue

    Mar 31

    65°Lo 42°

    Sunny and breezy

    Ragweed Pollen Weather
    • Precip
      9%
    • Wind
      Speed
      16 mph
    • Cloud
      Cover
      8%
    more
Next Previous
Next 8 hours >
  Fri
12am
1am 2am 3am 4am 5am 6am 7am
  12am 1am 2am 3am 4am 5am 6am 7am
Forecast
Cloudy
Cloudy
Flurries
Cloudy
Cloudy
Cloudy
Mostly Cloudy
Partly Cloudy
Temp (°F) 31° 31° 30° 29° 28° 26° 23° 21°
RealFeel® 24° 23° 20° 20° 18° 17° 13° 10°
Humidity 79% 78% 76% 77% 77% 76% 82% 87%
   
  12am 1am 2am 3am 4am 5am 6am 7am
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
40%
 
37%
 
27%
 
14%
 
14%
 
9%
Ice
 
0%
 
0%
 
1%
 
1%
 
1%
 
1%
 
1%
 
1%
   
  12am 1am 2am 3am 4am 5am 6am 7am
Wind (mph) 8 NW 9 N 9 NNE 9 NNE 9 N 9 N 9 N 10 N
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 98% 97% 99% 99% 99% 100% 86% 70%
Dew Point 25° 24° 23° 23° 21° 20° 19° 18°
Middle Grid line 35 F Middle Grid line 30 F Middle Grid line 25 F Middle Grid line 20 F

Temperature History - Mar 27

more Historical Weather Data >
  Today Normal Record 3/27/2014
High 35° 54° 82° (1945) 55°
Low 15° 33° (1965) 34°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:47 AM with 12:28 of sunlight, then sets at 7:15 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:19 PM with 14:35 of moolight, then sets at 2:54 AM

Ottawa Weather Report

Chicago: Temperatures to Rebound Following Cold Start to the Weekend

March 27, 2015; 12:04 PM ET

Another surge of cold air is set to blast Chicago, bringing January-like temperatures to the area early this weekend. more >

Making a Forecast: The Sixth Sense

Feb 16, 2015; 5:00 AM ET What steps go into making a forecast?

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps