• Today

    Mar 3

    39°Lo 11°

    Snow and ice, then rain

    Neutral weather for asthma
    • Hi
      RealFeel
      26°
    • UV
      1 - Low
    • Air Qual.
      Moderate
    more
  • Wed

    Mar 4

    18°Lo -2°

    Clouds and sun; much colder

    Beneficial weather for asthma
    • Hi
      RealFeel
    • UV
      3 - Moderate
    • Air Qual.
      Good
  • Thu

    Mar 5

    15°Lo 2°

    Sunny and bitterly cold

    Beneficial weather for asthma
    • Hi
      RealFeel
    • UV
      4 - Moderate
    • Air Qual.
      Good
    more
  • Fri

    Mar 6

    34°Lo 27°

    Mostly sunny and not as cold

    Beneficial weather for asthma
    • Hi
      RealFeel
      18°
    • UV
      4 - Moderate
    • Cloud
      Cover
      25%
    more
  • Sat

    Mar 7

    38°Lo 17°

    Chilly with some sun

    Beneficial weather for asthma
    • Hi
      RealFeel
      34°
    • UV
      3 - Moderate
    • Cloud
      Cover
      60%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Temp (°F) 12° 13° 14° 15° 16° 17° 18° 17°
RealFeel® -5° -3° -1°
Humidity 60% 56% 54% 53% 52% 52% 51% 53%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
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Snow
 
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Ice
 
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  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 15 NW 15 WNW 16 WNW 16 WNW 16 WNW 16 WNW 16 WNW 15 WNW
UV Index 1 2 3 3 3 2 1 1
Cloud Cover 70% 70% 70% 70% 70% 70% 70% 70%
Dew Point
Middle Grid line 20 F Middle Grid line 15 F Middle Grid line 10 F

Temperature History - Mar 4

more Historical Weather Data >
  Today Normal Record 3/4/2014
High 18° 42° N/A 27°
Low -2° 26° N/A 12°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:23 AM with 11:23 of sunlight, then sets at 5:46 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:04 PM with 13:03 of moolight, then sets at 6:07 AM

Wheaton Weather Report

Chicago: Wintry Mix to Precede Harsh Cold

March 3, 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. Air Quality

Wed. Asthma Risk

Wed. UV Index