• Today

    Sep 18

    73°Lo 48°

    Abundant sunshine and nice

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

    Sep 19

    76°Lo 59°

    Intervals of clouds and sun

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

    Sep 20

    80°Lo 59°

    A couple of p.m. t-storms

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

    Sep 21

    75°Lo 51°

    Clouds breaking; less humid

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

    Sep 22

    70°Lo 48°

    Times of clouds and sun

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
3am
4am 5am 6am 7am 8am 9am 10am
  3am 4am 5am 6am 7am 8am 9am 10am
Forecast
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Temp (°F) 50° 49° 49° 48° 48° 52° 57° 63°
RealFeel® 48° 48° 46° 45° 46° 49° 55° 63°
Humidity 91% 92% 93% 93% 93% 89% 77% 69%
   
  3am 4am 5am 6am 7am 8am 9am 10am
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  3am 4am 5am 6am 7am 8am 9am 10am
Wind (mph) 4 ESE 4 ESE 4 ESE 4 SE 4 SE 5 SE 6 SSE 7 SSE
UV Index 0 0 0 0 0 0 1 2
Cloud Cover 10% 10% 10% 10% 10% 46% 46% 46%
Dew Point 48° 47° 47° 46° 46° 48° 50° 52°
Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F

Temperature History - Sep 19

more Historical Weather Data >
  Today Normal Record 9/19/2013
High 76° 76° 95° (1947) 92°
Low 59° 52° 34° (1929) 67°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:40 AM with 12:18 of sunlight, then sets at 6:58 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:23 AM with 14:05 of moolight, then sets at 4:28 PM

Top Story

Ottawa Weather Report

Chicago: Cooler, Fall-Like Temperatures to Linger

September 18, 2014; 6:12 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 >

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

Fri. Snow Day Potential