• Today

    Sep 2

    90°Lo 71°

    Fog in the a.m.; partly sunny

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
  • Thu

    Sep 3

    87°Lo 68°

    Partly sunny, a t-storm; warm

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Fri

    Sep 4

    86°Lo 67°

    Intervals of clouds and sun

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Sat

    Sep 5

    87°Lo 69°

    Lots of sun; warm and humid

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Sun

    Sep 6

    89°Lo 71°

    Mostly sunny and very warm

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
7am
8am 9am 10am 11am 12pm 1pm 2pm
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Forecast
Mostly Sunny
Sunny
Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Partly Sunny
Temp (°F) 72° 75° 78° 82° 85° 86° 88° 90°
RealFeel® 73° 78° 82° 88° 92° 93° 94° 96°
Humidity 82% 83% 72% 65% 60% 54% 51% 51%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Rain
 
1%
 
0%
 
0%
 
0%
 
0%
 
0%
 
2%
 
7%
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) 5 SW 6 SW 7 WSW 8 WSW 8 WSW 9 WSW 9 WSW 9 WSW
UV Index 0 1 2 3 5 6 6 5
Cloud Cover 26% 3% 6% 10% 11% 15% 25% 41%
Dew Point 66° 69° 68° 69° 69° 68° 68° 69°
Middle Grid line 95 F 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

Temperature History - Sep 2

more Historical Weather Data >
  Today Normal Record 9/2/2014
High 90° 80° N/A 82°
Low 71° 60° N/A 67°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:18 AM with 13:06 of sunlight, then sets at 7:24 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:59 PM with 14:04 of moolight, then sets at 12:03 PM

Mount Prospect Weather Report

Chicago: More Foggy Mornings in Store as Heat Holds on

September 2, 2015; 5:11 AM ET

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

The 540 Snow Line

Dec 20, 2012; 5:00 AM ET The 540 line is often used by meteorologists to determine the chances of rain vs. snow.

48 Hour Precipitation Forecast

Wed. Snow Day Potential