• Tonight

    Apr 29

    Lo 45°

    Mostly cloudy

    Ragweed Pollen Weather
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Sat

    Apr 30

    55°Lo 46°

    Rain and a t-storm; cooler

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      3 - Moderate
    more
  • Sun

    May 1

    57°Lo 42°

    Mostly cloudy, a little rain

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
  • Mon

    May 2

    62°Lo 39°

    Partly sunny and warmer

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Tue

    May 3

    68°Lo 51°

    More sunshine than clouds

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Cloudy
Cloudy
Cloudy
Cloudy
Showers
Rain
Cloudy
Cloudy
Temp (°F) 50° 51° 53° 54° 55° 57° 56° 56°
RealFeel® 44° 46° 49° 51° 50° 52° 53° 52°
Humidity 80% 78% 74% 68% 65% 64% 67% 67%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
38%
 
35%
 
35%
 
38%
 
42%
 
51%
 
47%
 
43%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
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0%
 
0%
Ice
 
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  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 13 NE 13 NE 13 NE 13 NE 13 NE 13 NE 13 NE 13 NE
UV Index 1 1 2 2 2 3 2 2
Cloud Cover 94% 94% 94% 94% 94% 94% 94% 94%
Dew Point 44° 45° 45° 44° 44° 45° 45° 45°
Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F

Temperature History - May 1

more Historical Weather Data >
  Today Normal Record 5/1/2015
High 57° 68° 90° (1952) 70°
Low 42° 46° 29° (1918) 42°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:52 AM with 14:02 of sunlight, then sets at 7:54 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:46 AM with 11:11 of moolight, then sets at 1:57 PM

Ottawa Weather Report

Chicago: Warmup to follow cool, damp weekend

April 29, 2016; 10:57 PM ET

Following a cool and rainy weekend, warmer conditions will arrive in the Chicago area early next week. more >

Sun. Dust & Dander

Sun. Wind Maps