• Today

    Apr 21

    57°Lo 31°

    Strong winds; partly sunny

    Unlikely for hair frizz
    • Wind
      Gust
      43 mph
    • Precip
      24%
    • Hours of Precip
      0
  • Wed

    Apr 22

    53°Lo 30°

    Sunny, windy and cool

    Unlikely for hair frizz
    • Wind
      Gust
      33 mph
    • Precip
      3%
    • Hours of Precip
      0
    more
  • Thu

    Apr 23

    59°Lo 31°

    Breezy with plenty of sun

    Unlikely for hair frizz
    • Wind
      Gust
      29 mph
    • Precip
      2%
    • Hours of Precip
      0
    more
  • Fri

    Apr 24

    62°Lo 36°

    A thick cloud cover

    Unlikely for hair frizz
    • Wind
      Gust
      14 mph
    • Precip
      5%
    • Hours of Precip
      0
    more
  • Sat

    Apr 25

    55°Lo 32°

    Mostly cloudy and cooler

    Unlikely for hair frizz
    • Wind
      Gust
      20 mph
    • Precip
      5%
    • Hours of Precip
      0
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Tue
11am
12pm 1pm 2pm 3pm 4pm 5pm 6pm
  11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm
Forecast
Sunny
Sunny
Mostly Sunny
Partly Sunny
Partly Sunny
Partly Cloudy
Partly Cloudy
Mostly Cloudy
Temp (°F) 51° 53° 55° 56° 57° 57° 56° 54°
RealFeel® 44° 46° 49° 50° 51° 51° 48° 45°
Humidity 43% 36% 32% 31% 30% 29% 31% 35%
   
  11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm
Rain
 
0%
 
0%
 
1%
 
6%
 
6%
 
6%
 
6%
 
6%
Snow
 
0%
 
0%
 
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Ice
 
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  11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm
Wind (mph) 25 W 28 W 29 W 28 W 28 W 28 W 24 W 21 W
UV Index 5 6 7 6 5 3 2 1
Cloud Cover 0% 6% 15% 31% 49% 65% 73% 76%
Dew Point 29° 27° 26° 25° 26° 25° 26° 26°
Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F

Temperature History - Apr 21

more Historical Weather Data >
  Today Normal Record 4/21/2014
High 57° 65° 88° (1987) 64°
Low 31° 42° 25° (1904) 43°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:07 AM with 13:35 of sunlight, then sets at 7:42 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:24 AM with 14:40 of moolight, then sets at 11:04 PM

Ottawa Weather Report

Chicago: Temperatures to Plummet After Extended Warm Spell

April 21, 2015; 6:17 AM ET

After a two-week stretch of above-normal temperatures, Chicago is set to fall into a chilly pattern into late this week. more >

The History Behind the UV Index

Nov 12, 2012; 5:00 AM ET The UV index has been around since the early 1990s. It was created to help you plan outdoor activities in hopes to limit overexposure to the sun. Jeannette Calle has more.

Tue. Hair Frizz

Tue. Wind Maps

Tue. UV Index