• Today

    Mar 2

    30°Lo 21°

    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

    40°Lo 9°

    A wintry mix changing to rain

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

    Mar 4

    18°Lo -3°

    Clouds and sun; much colder

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

    Mar 5

    16°Lo 3°

    Sunny, but frigid

    Low ragweed pollen levels
    • Precip
      4%
    • Wind
      Speed
      10 mph
    • Cloud
      Cover
      2%
    more
  • Fri

    Mar 6

    33°Lo 22°

    Periods of sun; not as cold

    Ragweed Pollen Weather
    • Precip
      5%
    • Wind
      Speed
      18 mph
    • Cloud
      Cover
      55%
    more
Next Previous
Frigid 2° Lo -3° RealFeel® -14° / -19°

N

E

S

W

  • Precipitation: 12%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 76%
  • Cloud Cover: 2%
  • Dew Point: -6° F
  • Visibility: 10 mi
10 mph

Temperature History - Mar 4

more Historical Weather Data >
  Today Normal Record 3/4/2014
High 18° 43° 72° (1983) 29°
Low -3° 25° -2° (2002) 14°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:26 AM with 11:23 of sunlight, then sets at 5:49 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:08 PM with 13:01 of moolight, then sets at 6:09 AM

Ottawa Weather Report

Chicago: Wintry Mix to Precede Harsh Cold

March 2, 2015; 5:15 AM ET

While Chicago will escape the brunt of a snowstorm moving from the Rockies to the Midwest, the city will still see some wintry precipitation early this week. more >

Making a Forecast: The Sixth Sense

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

Wed. Dust & Dander

Wed. Wind Maps