• Tonight

    May 1

    Lo 41°

    Rain and drizzle this evening

    Sinus Headache Weather
    • Hi
      RealFeel
      46°
    • UV
      2 - Low
    • Cloud
      Cover
      99%
  • Mon

    May 2

    57°Lo 36°

    Warmer with variable clouds

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      57°
    • UV
      4 - Moderate
    • Cloud
      Cover
      81%
    more
  • Tue

    May 3

    65°Lo 47°

    Partly sunny and warmer

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      69°
    • UV
      5 - High
    • Cloud
      Cover
      26%
    more
  • Wed

    May 4

    54°Lo 37°

    Cooler with a stray shower

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      52°
    • UV
      4 - Moderate
    • Cloud
      Cover
      77%
    more
  • Thu

    May 5

    61°Lo 44°

    Partly sunny and breezy

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      63°
    • UV
      5 - High
    • Cloud
      Cover
      31%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
8pm
9pm 10pm 11pm Mon
12am
1am 2am 3am
  8pm 9pm 10pm 11pm 12am 1am 2am 3am
Forecast
Mostly Cloudy
Rain
Mostly Cloudy
Rain
Mostly Cloudy
Rain
Partly Cloudy
Partly Cloudy
Temp (°F) 47° 46° 46° 46° 45° 45° 44° 44°
RealFeel® 41° 38° 40° 37° 38° 36° 38° 37°
Humidity 82% 83% 83% 82% 83% 83% 83% 85%
   
  8pm 9pm 10pm 11pm 12am 1am 2am 3am
Rain
 
47%
 
51%
 
43%
 
55%
 
47%
 
55%
 
14%
 
10%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
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0%
 
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  8pm 9pm 10pm 11pm 12am 1am 2am 3am
Wind (mph) 10 ENE 9 ENE 9 NE 10 NE 10 NE 10 NE 10 NE 9 NNE
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 76% 76% 76% 76% 76% 76% 45% 45%
Dew Point 42° 42° 41° 40° 40° 40° 40° 40°
Middle Grid line 50 F Middle Grid line 45 F Middle Grid line 40 F

Temperature History - May 1

more Historical Weather Data >
  Today Normal Record 5/1/2015
High 50° 62° N/A 69°
Low 41° 40° N/A 29°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:48 AM with 14:06 of sunlight, then sets at 7:54 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:45 AM with 11:09 of moolight, then sets at 1:54 PM

Crystal Lake Weather Report

Chicago: Temperature roller coaster in store for new week

May 1, 2016; 3:54 PM ET

The start of May will bring a fluctuation in temperatures throughout the week in Chicago. more >

Sun. Sinus Headache

Sun. UV Index