• Today

    Sep 18

    65°Lo 52°

    Areas of fog, then sun

    Excellent for biking
    • Precip
      2%
    • Hours of Precip
      0
    • Wind
      Gust
      12 mph
  • Fri

    Sep 19

    72°Lo 61°

    Breezy with periods of sun

    Very Good for biking
    • Precip
      5%
    • Hours of Precip
      0
    • Wind
      Gust
      28 mph
    more
  • Sat

    Sep 20

    79°Lo 60°

    An afternoon thunderstorm

    Very Good for biking
    • Precip
      70%
    • Hours of Precip
      1
    • Wind
      Gust
      21 mph
    more
  • Sun

    Sep 21

    72°Lo 52°

    Clouds breaking; not as warm

    Very Good for biking
    • Precip
      25%
    • Hours of Precip
      0
    • Wind
      Gust
      17 mph
    more
  • Mon

    Sep 22

    68°Lo 53°

    Partly sunny

    Excellent for biking
    • Precip
      25%
    • Hours of Precip
      0
    • Wind
      Gust
      12 mph
    more
Next Previous
Hi 65° RealFeel® 68° Precipitation 2%

Day

N

E

S

W

  • NE 6 mph
  • Gusts: 12 mph

Areas of low clouds and fog, then sunshine

  • Max UV Index: 5 (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 52° RealFeel® 49° Precipitation 2%

Night

N

E

S

W

  • ESE 3 mph
  • Gusts: 7 mph

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 18

more Historical Weather Data >
  Today Normal Record 9/18/2013
High 65° 74° N/A 80°
Low 52° 55° N/A 59°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:34 AM with 12:22 of sunlight, then sets at 6:56 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:22 AM with 14:28 of moolight, then sets at 3:50 PM

Top Story

Northbrook Weather Report

Chicago: Chance of Interrupting Thunderstorms for Weekend

September 18, 2014; 5:15 PM ET

Chicago is facing a mostly clear weekend with the threat of some disruptive thunderstorms on Saturday. more >

Is Your Outdoor Gear Waterproof?

Dec 5, 2012; 5:00 AM ET Now that it's cold enough to hit the slopes, you may want to look more closely at what materials your winter sports gear is made of. As it turns out, not all waterproofing is created equal.