• Mon

    Mar 16

    48°Lo 32°

    Snow and rain in the p.m.

    Sinus Headache Weather
    • Hi
      RealFeel
      44°
    • UV
      4 - Moderate
    • Cloud
      Cover
      35%
    more
  • Tue

    Mar 17

    38°Lo 25°

    Considerable cloudiness

    Sinus Headache Weather
    • Hi
      RealFeel
      36°
    • UV
      3 - Moderate
    • Cloud
      Cover
      82%
    more
  • Wed

    Mar 18

    42°Lo 36°

    Sun and clouds

    Sinus Headache Weather
    • Hi
      RealFeel
      39°
    • UV
      4 - Moderate
    • Cloud
      Cover
      59%
  • Thu

    Mar 19

    51°Lo 31°

    Occasional rain

    Sinus Headache Weather
    • Hi
      RealFeel
      47°
    • UV
      2 - Low
    • Cloud
      Cover
      100%
    more
  • Fri

    Mar 20

    41°Lo 29°

    Mostly cloudy

    Sinus Headache Weather
    • Hi
      RealFeel
      45°
    • UV
      3 - Moderate
    • Cloud
      Cover
      83%
    more
Next Previous
Hi 42° RealFeel® 39° Precipitation 25%

Day

N

E

S

W

  • SE 8 mph
  • Gusts: 17 mph

Intervals of clouds and sunshine

  • Max UV Index: 4 (Moderate)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 36° RealFeel® 22° Precipitation 78%

Night

N

E

S

W

  • SSE 13 mph
  • Gusts: 20 mph

Rain

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • Precipitation: 0.52 in
  • Rain: 0.52 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 9 hrs
  • Hours of Rain: 9 hrs

Temperature History - Mar 18

more Historical Weather Data >
  Today Normal Record 3/18/2014
High 42° 44° N/A 43°
Low 36° 24° N/A 24°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:00 AM with 12:03 of sunlight, then sets at 7:03 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:45 AM with 11:31 of moolight, then sets at 5:16 PM

Crystal Lake Weather Report

Chicago: Snow Looms for Late Weekend as Cold Air Lingers

March 1, 2015; 3:14 AM ET

The Chicago area will continue to endure a cold air into late in the weekend as the next round of snow could hit the region on Sunday. more >

Making a Forecast: The Sixth Sense

Feb 16, 2015; 5:00 AM ET What steps go into making a forecast?