• Today

    Sep 17

    71°Lo 47°

    Mostly sunny and pleasant

    Excellent for biking
    • Precip
      4%
    • Hours of Precip
      0
    • Wind
      Gust
      3 mph
  • Thu

    Sep 18

    72°Lo 49°

    Sunny and pleasant

    Excellent for biking
    • Precip
      2%
    • Hours of Precip
      0
    • Wind
      Gust
      8 mph
    more
  • Fri

    Sep 19

    76°Lo 60°

    Pleasant with periods of sun

    Excellent for biking
    • Precip
      5%
    • Hours of Precip
      0
    • Wind
      Gust
      17 mph
    more
  • Sat

    Sep 20

    81°Lo 61°

    A couple of p.m. t-storms

    Very Good for biking
    • Precip
      66%
    • Hours of Precip
      2
    • Wind
      Gust
      19 mph
    more
  • Sun

    Sep 21

    77°Lo 54°

    A morning shower possible

    Very Good for biking
    • Precip
      30%
    • Hours of Precip
      0
    • Wind
      Gust
      15 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
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10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 52° 58° 63° 66° 68° 70° 71° 71°
RealFeel® 54° 63° 70° 72° 75° 76° 75° 73°
Humidity 81% 71% 64% 58% 54% 50% 48% 48%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
0%
 
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0%
 
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0%
 
0%
 
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0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
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Ice
 
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  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 2 N 2 N 2 NNW 3 WNW 3 WSW 2 WSW 2 SW 2 WSW
UV Index 1 3 4 5 5 5 4 3
Cloud Cover 22% 20% 18% 13% 10% 11% 11% 11%
Dew Point 46° 49° 51° 51° 51° 51° 51° 50°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F

Temperature History - Sep 17

more Historical Weather Data >
  Today Normal Record 9/17/2013
High 71° 76° 97° (1927) 74°
Low 47° 53° 31° (1937) 46°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:37 AM with 12:25 of sunlight, then sets at 7:02 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:35 AM with 14:38 of moolight, then sets at 3:13 PM

Top Story

Ottawa Weather Report

Chicago: Cooler, Fall-Like Temperatures to Linger

September 17, 2014; 1:12 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 >

Is Your Outdoor Gear Waterproof?

Dec 5, 2012; 5:00 AM ET Now that it's cold enough to hit the slopes, you may want to look more closely at what materials your winter sports gear is made of. As it turns out, not all waterproofing is created equal.