• Early AM

    Apr 18

    Lo 41°

    Occasional rain and drizzle

    Dust & Dander Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Today

    Apr 18

    51°Lo 36°

    Clouds giving way to some sun

    Moderate indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
  • Sat

    Apr 19

    62°Lo 46°

    Partly sunny and warmer

    Moderate indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Sun

    Apr 20

    70°Lo 53°

    Mostly cloudy

    Low indoor dust & dander levels
    • Precip
      16%
    • Wind
      Speed
      9 mph
    • Cloud
      Cover
      76%
    more
  • Mon

    Apr 21

    66°Lo 48°

    A couple of thunderstorms

    Low indoor dust & dander levels
    • Precip
      67%
    • Wind
      Speed
      9 mph
    • Cloud
      Cover
      85%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
1am
2am 3am 4am 5am 6am 7am 8am
  1am 2am 3am 4am 5am 6am 7am 8am
Forecast
Cloudy
Rain
Rain
Cloudy
Cloudy
Cloudy
Cloudy
Mostly Cloudy
Temp (°F) 44° 43° 42° 43° 42° 41° 42° 44°
RealFeel® 42° 39° 38° 39° 38° 36° 38° 41°
Humidity 66% 69% 71% 70% 72% 74% 72% 79%
   
  1am 2am 3am 4am 5am 6am 7am 8am
Rain
 
19%
 
61%
 
61%
 
49%
 
34%
 
34%
 
29%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
16%
   
  1am 2am 3am 4am 5am 6am 7am 8am
Wind (mph) 4 NW 4 NW 5 NW 5 NNW 5 N 6 NNE 5 NNE 6 NNE
UV Index 0 0 0 0 0 0 0 1
Cloud Cover 98% 98% 98% 95% 95% 95% 95% 76%
Dew Point 33° 33° 34° 34° 34° 33° 33° 38°
Middle Grid line 45 F Middle Grid line 40 F

Temperature History - Apr 18

more Historical Weather Data >
  Today Normal Record 4/18/2013
High 51° 60° 89° (2002) 63°
Low 36° 43° 25° (1983) 40°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:06 AM with 13:29 of sunlight, then sets at 7:35 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:22 PM with 9:58 of moolight, then sets at 9:20 AM

Top Story

Chicago Weather Report

Chicago: Weekend Warmth on the Way

April 17, 2014; 5:44 PM ET

Despite a chilly Friday, seasonal warmth will return to the city right in time for the holiday weekend. more >

Is it a Cold or the Flu?

Apr 7, 2014; 5:00 AM ET Symptoms caused by the common cold can often resemble those associated with the influenza virus, so how do you differentiate between the two?

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps