• Tonight

    Sep 17

    Lo 47°

    Mainly clear

    Migraine Headache Weather
    • Hi
      RealFeel
      71°
    • UV
      5 - Moderate
    • Cloud
      Cover
      26%
  • Thu

    Sep 18

    66°Lo 50°

    Mostly sunny and nice

    Beneficial weather for migraines
    • Hi
      RealFeel
      70°
    • UV
      5 - Moderate
    • Cloud
      Cover
      19%
    more
  • Fri

    Sep 19

    72°Lo 60°

    Clouds and sun; breezy, nice

    Beneficial weather for migraines
    • Hi
      RealFeel
      70°
    • UV
      5 - Moderate
    • Cloud
      Cover
      48%
    more
  • Sat

    Sep 20

    79°Lo 60°

    A couple of p.m. t-storms

    Beneficial weather for migraines
    • Hi
      RealFeel
      78°
    • UV
      3 - Moderate
    • Cloud
      Cover
      77%
    more
  • Sun

    Sep 21

    73°Lo 51°

    Clouds giving way to some sun

    Beneficial weather for migraines
    • Hi
      RealFeel
      72°
    • UV
      4 - Moderate
    • Cloud
      Cover
      52%
    more
Next Previous
Hi 68° RealFeel® 71° Precipitation 3%

Day

N

E

S

W

  • WSW 4 mph
  • Gusts: 9 mph

Partly sunny and comfortable

  • 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 47° RealFeel® 45° Precipitation 1%

Night

N

E

S

W

  • NNE 2 mph
  • Gusts: 5 mph

Mainly clear

  • 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 68° 73° N/A 66°
Low 47° 53° N/A 49°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:34 AM with 12:25 of sunlight, then sets at 6:59 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:29 AM with 14:43 of moolight, then sets at 3:12 PM

Top Story

Grayslake 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 >

Wed. Migraine Headache

Wed. UV Index