• Today

    Apr 30

    51°Lo 46°

    Breezy with rain, some heavy

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

    May 1

    58°Lo 41°

    Warmer with occasional rain

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

    May 2

    63°Lo 42°

    Partly sunny

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

    May 3

    69°Lo 51°

    More sunshine than clouds

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

    May 4

    63°Lo 40°

    A shower in the afternoon

    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
7am
8am 9am 10am 11am 12pm 1pm 2pm
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Forecast
Cloudy
Showers
Cloudy
Cloudy
Cloudy
Cloudy
Showers
Cloudy
Temp (°F) 47° 49° 51° 53° 55° 56° 57° 58°
RealFeel® 43° 44° 48° 51° 54° 56° 55° 58°
Humidity 96% 92% 85% 81% 79% 75% 72% 70%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Rain
 
43%
 
42%
 
38%
 
35%
 
35%
 
38%
 
42%
 
43%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Wind (mph) 8 NNE 8 NNE 8 NNE 8 NNE 8 NNE 8 NNE 8 NNE 8 NNE
UV Index 0 0 1 1 2 2 2 2
Cloud Cover 94% 94% 92% 90% 91% 94% 94% 94%
Dew Point 46° 47° 46° 47° 48° 48° 48° 48°
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 58° 68° 90° (1952) 70°
Low 41° 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 30, 2016; 6:26 AM ET

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

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps