• 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
< Previous 8 hours Next 8 hours >
  Sat
12pm
1pm 2pm 3pm 4pm 5pm 6pm 7pm
  12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm
Forecast
Sunny
Sunny
Sunny
Mostly Sunny
Partly Cloudy
Freezing Rain
Freezing Rain
Flurries
Temp (°F) 18° 20° 21° 22° 22° 21° 20° 19°
RealFeel® 19° 20° 19° 18° 17° 12° 11° 11°
Humidity 65% 63% 61% 61% 63% 67% 72% 80%
   
  12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
6%
 
6%
 
6%
 
6%
 
6%
 
10%
 
51%
Ice
 
0%
 
9%
 
9%
 
13%
 
49%
 
53%
 
55%
 
38%
   
  12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm
Wind (mph) 7 SE 8 SE 8 SE 7 SE 7 ESE 7 SE 7 ESE 7 ESE
UV Index 4 3 3 2 1 0 0 0
Cloud Cover 7% 1% 8% 26% 57% 83% 97% 99%
Dew Point 10° 10° 11° 12° 12° 14°
Middle Grid line 25 F Middle Grid line 20 F Middle Grid line 15 F

Temperature History - Feb 28

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

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

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