• Today

    Sep 17

    69°Lo 48°

    Partly sunny and pleasant

    Poor for home energy
    • Avg
      RealFeel
      59°
    • Hi
      RealFeel
      71°
    • Wind
      Speed
      3 mph
    more
  • Thu

    Sep 18

    67°Lo 52°

    Mostly sunny and pleasant

    Poor for home energy
    • Avg
      RealFeel
      60°
    • Hi
      RealFeel
      69°
    • Wind
      Speed
      6 mph
  • Fri

    Sep 19

    73°Lo 61°

    Pleasant with clouds and sun

    Poor for home energy
    • Avg
      RealFeel
      63°
    • Hi
      RealFeel
      71°
    • Wind
      Speed
      10 mph
    more
  • Sat

    Sep 20

    80°Lo 62°

    An afternoon thunderstorm

    Poor for home energy
    • Avg
      RealFeel
      69°
    • Hi
      RealFeel
      79°
    • Wind
      Speed
      13 mph
    more
  • Sun

    Sep 21

    75°Lo 54°

    Clouds giving way to some sun

    Poor for home energy
    • Avg
      RealFeel
      62°
    • Hi
      RealFeel
      74°
    • Wind
      Speed
      10 mph
    more
Next Previous
Hi 67° RealFeel® 69° Precipitation 25%

Day

N

E

S

W

  • ENE 6 mph
  • Gusts: 10 mph

Sunny to partly cloudy and pleasant

  • 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® 50° Precipitation 1%

Night

N

E

S

W

  • SE 3 mph
  • Gusts: 6 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 67° 74° N/A 80°
Low 52° 55° N/A 59°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:35 AM with 12:21 of sunlight, then sets at 6:56 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:23 AM with 14:28 of moolight, then sets at 3:51 PM

Top Story

Prospect Heights 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 >

Energy Efficient Lightbulbs and S.A.D

Sep 8, 2012; 5:00 AM ET With shorter days and colder nights in the fall and winter, some people develop seasonal affective disorder. When shopping for lightbulbs to treat the 'winter blues,'consider energy-efficient bulbs.

Thu. Home Energy Efficiency

Thu. Degree Days

Thu. UV Index