• Today

    Sep 17

    70°Lo 45°

    Partly sunny and nice

    Excellent for travel
    • Rain
      0 in
    • Wind
      Speed
      4 mph
    • T-storms
      7%
  • Thu

    Sep 18

    70°Lo 50°

    Mostly sunny and pleasant

    Excellent for travel
    • Rain
      0 in
    • Wind
      Speed
      6 mph
    • T-storms
      0%
    more
  • Fri

    Sep 19

    74°Lo 60°

    Times of clouds and sun

    Excellent for travel
    • Rain
      0 in
    • Wind
      Speed
      10 mph
    • T-storms
      6%
    more
  • Sat

    Sep 20

    79°Lo 59°

    A couple of p.m. t-storms

    Very Good for travel
    • Rain
      0.45 in
    • Wind
      Speed
      13 mph
    • T-storms
      60%
    more
  • Sun

    Sep 21

    73°Lo 51°

    Clouds giving way to some sun

    Excellent for travel
    • Rain
      0 in
    • Wind
      Speed
      10 mph
    • T-storms
      15%
    more
Next Previous
Hi 70° RealFeel® 72° Precipitation 3%

Day

N

E

S

W

  • WSW 4 mph
  • Gusts: 10 mph

Partly sunny and nice

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 7%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 45° RealFeel® 44° Precipitation 2%

Night

N

E

S

W

  • N 2 mph
  • Gusts: 7 mph

Clear to partly cloudy

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

Temperature History - Sep 17

more Historical Weather Data >
  Today Normal Record 9/17/2013
High 70° 72° N/A 70°
Low 45° 48° N/A 35°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:35 AM with 12:25 of sunlight, then sets at 7:00 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:30 AM with 14:43 of moolight, then sets at 3:13 PM

Top Story

Crystal Lake Weather Report

Chicago: Cooler, Fall-Like Temperatures to Linger

September 17, 2014; 1:12 AM ET

The cooler, below-average conditions responsible for the fall-like feel will hold through the end of the week over the Chicago area. more >

Travel Weather Forecast

Sep 17, 2014; 2:31 PM ET United States travel weather forecast

Weather Related Flight Delays

Wed. Travel Weather

Flight Tracker