• Today

    Sep 1

    90°Lo 70°

    A shower in the morning; fog

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      96°
    • UV
      4 - Moderate
    • Cloud
      Cover
      43%
  • Wed

    Sep 2

    91°Lo 69°

    Fog in the morning; some sun

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      98°
    • UV
      5 - High
    • Cloud
      Cover
      38%
    more
  • Thu

    Sep 3

    88°Lo 67°

    Times of clouds and sun

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      97°
    • UV
      4 - Moderate
    • Cloud
      Cover
      46%
    more
  • Fri

    Sep 4

    88°Lo 68°

    Sunny, very warm and humid

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      98°
    • UV
      5 - High
    • Cloud
      Cover
      10%
    more
  • Sat

    Sep 5

    87°Lo 65°

    Mostly sunny, warm and humid

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      95°
    • UV
      4 - Moderate
    • Cloud
      Cover
      25%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Tue
7am
8am 9am 10am 11am 12pm 1pm 2pm
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Forecast
Fog
Showers
Hazy
Hazy
Hazy
Hazy
Hazy
Hazy
Temp (°F) 70° 73° 76° 80° 83° 85° 87° 89°
RealFeel® 71° 74° 81° 88° 93° 94° 95° 95°
Humidity 90% 86% 76% 71% 67% 59% 54% 50%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Rain
 
1%
 
40%
 
37%
 
27%
 
15%
 
15%
 
10%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Wind (mph) 4 NNW 4 WSW 5 SW 6 SW 7 SSW 7 SSW 8 SSW 8 SW
UV Index 0 1 2 3 4 5 5 5
Cloud Cover 0% 74% 31% 31% 31% 31% 70% 31%
Dew Point 67° 68° 68° 70° 71° 70° 69° 68°
Middle Grid line 90 F Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - Sep 1

more Historical Weather Data >
  Today Normal Record 9/1/2014
High 90° 80° N/A 83°
Low 70° 60° N/A 70°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:17 AM with 13:09 of sunlight, then sets at 7:26 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:19 PM with 13:35 of moolight, then sets at 10:54 AM

Prospect Heights Weather Report

Chicago: More Foggy Mornings in Store as Heat Holds on

September 1, 2015; 4:41 AM ET

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

New Year, New You

Dec 24, 2012; 5:00 AM ET Start 2013 right with these tips on how to set realistic New Year's resolutions!

Tue. Sinus Headache

Tue. UV Index