• Today

    Apr 20

    74°Lo 50°

    Times of clouds and sun

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

    Apr 21

    72°Lo 44°

    Couple of showers, t-storms

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

    Apr 22

    57°Lo 33°

    Cooler with clouds breaking

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

    Apr 23

    58°Lo 38°

    Partly sunny

    Moderate indoor dust & dander levels
    • Precip
      25%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      35%
    more
  • Thu

    Apr 24

    66°Lo 48°

    A couple of thunderstorms

    Moderate indoor dust & dander levels
    • Precip
      61%
    • Wind
      Speed
      12 mph
    • Cloud
      Cover
      94%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Mon
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
T-storms
Cloudy
Cloudy
Temp (°F) 65° 68° 68° 69° 72° 70° 70° 70°
RealFeel® 63° 67° 66° 67° 70° 66° 66° 65°
Humidity 65% 63% 63% 64% 61% 70% 67% 64%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
15%
 
15%
 
15%
 
19%
 
47%
 
51%
 
47%
 
48%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 11 SW 13 SW 15 SW 17 SW 15 SW 16 WSW 17 W 14 W
UV Index 3 3 4 4 4 3 2 1
Cloud Cover 86% 83% 81% 81% 84% 90% 94% 94%
Dew Point 53° 55° 56° 56° 58° 60° 59° 57°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F

Temperature History - Apr 21

more Historical Weather Data >
  Today Normal Record 4/21/2013
High 72° 59° N/A 48°
Low 44° 37° N/A 27°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:03 AM with 13:38 of sunlight, then sets at 7:41 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:13 AM with 10:14 of moolight, then sets at 11:27 AM

Top Story

McHenry Weather Report

Rain Coming to Chicago with Roller Coaster Temperatures

April 20, 2014; 2:22 PM ET

A showery pattern with up-and-down temperatures is coming this week to Chicago. more >

Is it a Cold or the Flu?

Apr 19, 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?

Mon. Pollen

Mon. Dust & Dander

Mon. Wind Maps