• Tonight

    Aug 31

    Lo 67°

    Mainly clear, warm; fog late

    Lawn Mowing Weather
    • Hours of Precip
      0
    • Precip
      3%
    • Hi
      RealFeel
      92°
  • Tue

    Sep 1

    90°Lo 69°

    Fog in the a.m.; mostly sunny

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      9%
    • Hi
      RealFeel
      95°
    more
  • Wed

    Sep 2

    91°Lo 69°

    Partly sunny, hot and humid

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      9%
    • Hi
      RealFeel
      97°
    more
  • Thu

    Sep 3

    89°Lo 68°

    Partly sunny and very warm

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      6%
    • Hi
      RealFeel
      95°
    more
  • Fri

    Sep 4

    87°Lo 66°

    Sunny and very warm

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      7%
    • Hi
      RealFeel
      93°
    more
Next Previous
Areas of fog 70° Lo 67° RealFeel® 70° / 67°

N

E

S

W

  • Precipitation: 4%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 88%
  • Cloud Cover: 0%
  • Dew Point: 65° F
  • Visibility: 5 mi
5 mph

Temperature History - Aug 31

more Historical Weather Data >
  Today Normal Record 8/31/2014
High 85° 80° 99° (1953) 85°
Low 67° 60° 47° (1872) 68°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:16 AM with 13:12 of sunlight, then sets at 7:28 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:41 PM with 13:01 of moolight, then sets at 9:42 AM

Prospect Heights Weather Report

Chicago: More Foggy Mornings in Store as Heat Holds on

August 31, 2015; 7:25 PM ET

Chicagoans can expect to begin September with a stretch of higher temperatures, increasing humidity and more foggy mornings. more >

Why Do Leaves Change Color?

Sep 20, 2011; 5:00 AM ET Why do leaves change from green to beautiful shades of red, orange and yellow in the fall?

Current Drought Status

Current Soil Conditions

Mon. Overnight Freeze

Mon. Degree Days

Mon. Evapotranspiration