• Today

    Apr 21

    56°Lo 29°

    Very windy; warmer

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      49°
    • UV
      5 - Moderate
    • Cloud
      Cover
      76%
  • Wed

    Apr 22

    51°Lo 28°

    Partly sunny, windy and cool

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      44°
    • UV
      6 - High
    • Cloud
      Cover
      36%
    more
  • Thu

    Apr 23

    54°Lo 29°

    Breezy with plenty of sun

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      52°
    • UV
      7 - High
    • Cloud
      Cover
      0%
    more
  • Fri

    Apr 24

    59°Lo 35°

    A thick cloud cover

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      61°
    • UV
      5 - Moderate
    • Cloud
      Cover
      95%
    more
  • Sat

    Apr 25

    54°Lo 33°

    Cool with clouds and sun

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      55°
    • UV
      6 - High
    • Cloud
      Cover
      46%
    more
Next Previous
Hi 56° RealFeel® 49° Precipitation 25%

Day

N

E

S

W

  • W 23 mph
  • Gusts: 38 mph

Very windy; warmer with clouds and breaks of sun

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 2%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 29° RealFeel® 15° Precipitation 24%

Night

N

E

S

W

  • W 14 mph
  • Gusts: 28 mph

Partly cloudy, breezy and chilly; there will be a freeze

  • Max UV Index: N/A
  • Thunderstorms: 2%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Apr 21

more Historical Weather Data >
  Today Normal Record 4/21/2014
High 56° 62° 89° (1987) 71°
Low 29° 40° 22° (1988) 49°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:06 AM with 13:36 of sunlight, then sets at 7:42 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:22 AM with 14:44 of moolight, then sets at 11:06 PM

DeKalb Weather Report

Chicago: Temperatures to Plummet After Extended Warm Spell

April 21, 2015; 5:17 AM ET

After a two-week stretch of above-normal temperatures, Chicago is set to fall into a chilly pattern into late this week. more >

New Year, New You

Dec 24, 2012; 5:00 AM ET Start 2013 right with these tips on how to set realistic New Year's resolutions!

Tue. Sinus Headache

Tue. UV Index