• Today

    Mar 1

    28°Lo 8°

    Clouds giving way to some sun

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

    Mar 2

    29°Lo 24°

    Cold with periods of sun

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

    Mar 3

    40°Lo 8°

    A wintry mix in the morning

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

    Mar 4

    17°Lo -2°

    Mostly cloudy and much colder

    Low ragweed pollen levels
    • Precip
      11%
    • Wind
      Speed
      18 mph
    • Cloud
      Cover
      76%
    more
  • Thu

    Mar 5

    17°Lo 4°

    Mostly sunny and frigid

    Ragweed Pollen Weather
    • Precip
      3%
    • Wind
      Speed
      10 mph
    • Cloud
      Cover
      11%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Snow
Snow
Mostly Cloudy
Cloudy
Mostly Cloudy
Mostly Cloudy
Partly Cloudy
Partly Sunny
Temp (°F) 20° 22° 24° 25° 26° 27° 28° 27°
RealFeel® 27° 29° 33° 31° 29° 26° 23° 19°
Humidity 91% 89% 84% 83% 82% 79% 78% 81%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
51%
 
51%
 
47%
 
32%
 
10%
 
10%
 
10%
 
10%
Ice
 
5%
 
5%
 
5%
 
3%
 
1%
 
1%
 
1%
 
1%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 0 1 N 2 W 4 W 6 WNW 7 W 8 W 9 W
UV Index 1 1 2 2 2 2 1 1
Cloud Cover 92% 89% 87% 92% 80% 80% 63% 45%
Dew Point 18° 19° 19° 20° 21° 22° 22° 22°
Middle Grid line 30 F Middle Grid line 25 F Middle Grid line 20 F Middle Grid line 15 F

Temperature History - Mar 1

more Historical Weather Data >
  Today Normal Record 3/1/2014
High 28° 41° 65° (2004) 30°
Low 23° (1962) 12°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:31 AM with 11:16 of sunlight, then sets at 5:47 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:21 PM with 14:14 of moolight, then sets at 4:35 AM

Peru Weather Report

Chicago: Wintry Mix to Precede Harsh Cold

March 1, 2015; 5:52 PM 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?

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps