• Today

    Sep 20

    76°Lo 58°

    Heavy thunderstorms

    Advisory for hair frizz
    • Wind
      Gust
      24 mph
    • Precip
      66%
    • Hours of Precip
      3
    more
  • Sun

    Sep 21

    63°Lo 48°

    Cooler with a stray shower

    Watch for hair frizz
    • Wind
      Gust
      21 mph
    • Precip
      41%
    • Hours of Precip
      1
  • Mon

    Sep 22

    66°Lo 49°

    Sunshine and patchy clouds

    Watch for hair frizz
    • Wind
      Gust
      7 mph
    • Precip
      0%
    • Hours of Precip
      0
    more
  • Tue

    Sep 23

    70°Lo 51°

    Mostly sunny and nice

    Watch for hair frizz
    • Wind
      Gust
      6 mph
    • Precip
      4%
    • Hours of Precip
      0
    more
  • Wed

    Sep 24

    73°Lo 54°

    A full day of sunshine

    Watch for hair frizz
    • Wind
      Gust
      10 mph
    • Precip
      10%
    • Hours of Precip
      0
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Mostly Cloudy
Cloudy
Cloudy
Showers
Cloudy
Partly Sunny
Showers
Partly Sunny
Temp (°F) 59° 61° 61° 62° 62° 63° 63° 63°
RealFeel® 53° 55° 56° 56° 58° 61° 60° 59°
Humidity 80% 76% 74% 73% 72% 70% 69% 67%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
14%
 
18%
 
47%
 
51%
 
47%
 
47%
 
51%
 
47%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 12 WNW 13 WNW 13 NW 13 NW 13 NW 14 NNW 14 NNW 14 N
UV Index 1 1 1 2 2 4 3 2
Cloud Cover 76% 90% 94% 94% 90% 45% 45% 45%
Dew Point 53° 53° 53° 53° 53° 53° 53° 52°
Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F

Temperature History - Sep 21

more Historical Weather Data >
  Today Normal Record 9/21/2013
High 63° 73° N/A 66°
Low 48° 54° N/A 53°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:37 AM with 12:14 of sunlight, then sets at 6:51 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:09 AM with 13:19 of moolight, then sets at 5:28 PM

Top Story

Northbrook Weather Report

Chicago: Thunderstorms to Precede More Cool Air

September 20, 2014; 4:28 AM ET

Chicago is facing the threat of some disruptive thunderstorms on Saturday. more >

The History Behind the UV Index

Nov 12, 2012; 5:00 AM ET The UV index has been around since the early 1990s. It was created to help you plan outdoor activities in hopes to limit overexposure to the sun. Jeannette Calle has more.

Sun. Hair Frizz

Sun. Wind Maps

Sun. UV Index