• Tonight

    Feb 28

    Lo 16°

    Cold with a little snow

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

    Mar 1

    29°Lo 8°

    Cloudy, a bit of snow; cold

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

    Mar 2

    30°Lo 26°

    Cold with clouds and sun

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

    Mar 3

    41°Lo 9°

    A wintry mix changing to rain

    Low ragweed pollen levels
    • Precip
      80%
    • Wind
      Speed
      18 mph
    • Cloud
      Cover
      99%
    more
  • Wed

    Mar 4

    16°Lo -2°

    Mostly cloudy and much colder

    Ragweed Pollen Weather
    • Precip
      25%
    • Wind
      Speed
      17 mph
    • Cloud
      Cover
      74%
    more
Next Previous
Mostly cloudy 18° RealFeel® 12°

N

E

S

W

  • Humidity: 88%
  • Pressure: 30.49 in
  • UV Index: 0
  • Cloud Cover: 87%
  • Ceiling: 12688 ft
  • Dew Point: 15° F
  • Visibility: 5 mi
6 mph

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:32 AM with 11:13 of sunlight, then sets at 5:45 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:25 PM with 14:31 of moolight, then sets at 3:56 AM

Temperature Summary - 10:30 PM

  Temp (°F)
Now 18°
Yesterday 38°
RealFeel® 12°
RealFeel® Shade 12°
Wind Chill 10°
Dew Point 15°
  Hi / Lo
Previous 6 Hours 21°
  18°
Previous 12 Hours 22°
  14°
Previous 24 Hours 22°
  -7°

Temperature History - Feb 28

more Historical Weather Data >
  Today Normal Record 2/28/2014
High 22° 41° 65° (1976) 34°
Low 16° 23° (1994)

Precipitation Summary - 10:30 PM

  Amount (in)
Previous 1 Hour 0
Previous 3 Hours 0.01
Previous 6 Hours 0.04
Previous 9 Hours 0.04
Previous 12 Hours 0.04
Previous 18 Hours 0.04
Previous 24 Hours 0.04

Ottawa Weather Report

Chicago: Snow Looms for Late Weekend as Cold Air Lingers

February 28, 2015; 5:24 PM ET

The Chicago area will continue to endure a cold air into late in the weekend as the next round of snow could hit the region on Sunday. more >

Making a Forecast: The Sixth Sense

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

Sat. Pollen

Sat. Dust & Dander

Sat. Wind Maps