• Today

    Apr 30

    50°Lo 42°

    Cloudy and becoming rainy

    Neutral weather for asthma
    • Hi
      RealFeel
      43°
    • UV
      4 - Moderate
    • Air Qual.
      Good
    more
  • Sun

    May 1

    53°Lo 40°

    Rather cloudy, a little rain

    Beneficial weather for asthma
    • Hi
      RealFeel
      47°
    • UV
      2 - Low
    • Air Qual.
      Good
    more
  • Mon

    May 2

    60°Lo 41°

    Partly sunny and warmer

    Beneficial weather for asthma
    • Hi
      RealFeel
      66°
    • UV
      5 - High
    • Air Qual.
      Good
    more
  • Tue

    May 3

    70°Lo 46°

    Partly sunny and breezy

    Beneficial weather for asthma
    • Hi
      RealFeel
      72°
    • UV
      5 - High
    • Air Qual.
      Good
    more
  • Wed

    May 4

    56°Lo 39°

    Cooler with a shower or two

    Beneficial weather for asthma
    • Hi
      RealFeel
      53°
    • UV
      4 - Moderate
    • Air Qual.
      Good
Next Previous
Cooler 54° Lo 48° RealFeel® 52° / 41°

N

E

S

W

  • Precipitation: 55%
  • Rain: 0.02 in
  • Snow: 0 in
  • Humidity: 65%
  • Cloud Cover: 86%
  • Dew Point: 40° F
  • Visibility: 9 mi
15 mph

Temperature History - May 4

more Historical Weather Data >
  Today Normal Record 5/4/2015
High 56° 64° N/A 71°
Low 39° 41° N/A 49°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:44 AM with 14:13 of sunlight, then sets at 7:57 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:34 AM with 12:55 of moolight, then sets at 5:29 PM

Crystal Lake Weather Report

Chicago: Warmup to follow cool, damp weekend

April 30, 2016; 4:26 PM ET

Following a cool and rainy weekend, warmer conditions will arrive in the Chicago area early next week. more >

Wed. Asthma Risk

Wed. UV Index