• Tonight

    Oct 1

    Lo 60°

    A few showers

    Snow Days Weather
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Thu

    Oct 2

    75°Lo 58°

    A couple of thunderstorms

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Fri

    Oct 3

    62°Lo 40°

    Cooler with a few showers

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Sat

    Oct 4

    51°Lo 37°

    Cooler with a shower possible

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
  • Sun

    Oct 5

    54°Lo 41°

    A shower possible

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
Next Previous
Hi 51° RealFeel® 42° Precipitation 30%

Day

N

E

S

W

  • W 15 mph
  • Gusts: 35 mph

Intervals of clouds and sunshine, windy and cooler with a shower possible

  • Max UV Index: 3 (Moderate)
  • Thunderstorms: 15%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 37° RealFeel® 29° Precipitation 2%

Night

N

E

S

W

  • WSW 8 mph
  • Gusts: 13 mph

Clear to partly cloudy and chilly

  • Max UV Index: N/A
  • Thunderstorms: 7%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Oct 4

more Historical Weather Data >
  Today Normal Record 10/4/2013
High 51° 66° N/A 69°
Low 37° 46° N/A 61°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:51 AM with 11:37 of sunlight, then sets at 6:28 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:08 PM with 11:18 of moolight, then sets at 3:26 AM

Lake Forest Weather Report

Chicago: Mix of Sun, Storms Ahead as Temperatures Fluctuate

October 1, 2014; 9:39 PM ET

The Chicago area is set for a roller-coaster weather pattern over the next few days as temperatures rise and fall in between alternating sunny and stormy skies. more >

The 540 Snow Line

Dec 20, 2012; 5:00 AM ET The 540 line is often used by meteorologists to determine the chances of rain vs. snow.

Sat. Snow Day Potential