• Tonight

    Jul 31

    Lo 63°

    A thunderstorm in spots early

    Snow Days Weather
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
  • Fri

    Aug 1

    83°Lo 61°

    An afternoon thunderstorm

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

    Aug 2

    82°Lo 59°

    Some sun with a thunderstorm

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

    Aug 3

    82°Lo 64°

    Partly sunny and beautiful

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

    Aug 4

    85°Lo 65°

    A thunderstorm possible

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
9pm
10pm 11pm Fri
12am
1am 2am 3am 4am
  9pm 10pm 11pm 12am 1am 2am 3am 4am
Forecast
T-storms
Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Temp (°F) 74° 72° 70° 69° 67° 66° 65° 64°
RealFeel® 69° 69° 67° 65° 64° 62° 62° 63°
Humidity 60% 63% 67% 72% 75% 75% 77% 79%
   
  9pm 10pm 11pm 12am 1am 2am 3am 4am
Rain
 
51%
 
47%
 
32%
 
32%
 
28%
 
20%
 
20%
 
20%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9pm 10pm 11pm 12am 1am 2am 3am 4am
Wind (mph) 5 WNW 3 WNW 3 W 3 WSW 3 SW 3 WSW 3 WSW 3 WSW
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 0% 5% 11% 20% 26% 26% 26% 26%
Dew Point 59° 59° 59° 59° 59° 58° 58° 58°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F

Temperature History - Jul 31

more Historical Weather Data >
  Today Normal Record 7/31/2013
High 82° 83° 99° (2006) 75°
Low 63° 64° 51° (1984) 62°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:44 AM with 14:28 of sunlight, then sets at 8:12 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:17 AM with 12:01 of moolight, then sets at 10:18 PM

Top Story

Mount Prospect Weather Report

Chicago: Showers, Thunderstorms to Linger into Next Week

July 31, 2014; 10:07 PM ET

Clouds and the chance for thunderstorms will continue to linger in the Chicago area into the weekend. 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

Thu. Snow Day Potential