• Today

    Apr 18

    76°Lo 55°

    Some sun, then turning cloudy

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
  • Sun

    Apr 19

    61°Lo 49°

    Downpours; breezy and cooler

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Mon

    Apr 20

    60°Lo 36°

    Spotty morning showers

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Tue

    Apr 21

    57°Lo 35°

    Windy with periods of sun

    Low ragweed pollen levels
    • Precip
      8%
    • Wind
      Speed
      25 mph
    • Cloud
      Cover
      46%
    more
  • Wed

    Apr 22

    55°Lo 34°

    Breezy with clouds and sun

    Ragweed Pollen Weather
    • Precip
      25%
    • Wind
      Speed
      16 mph
    • Cloud
      Cover
      65%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
6am
7am 8am 9am 10am 11am 12pm 1pm
  6am 7am 8am 9am 10am 11am 12pm 1pm
Forecast
Partly Cloudy
Partly Sunny
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Temp (°F) 59° 62° 56° 59° 62° 67° 71° 74°
RealFeel® 59° 62° 59° 63° 67° 70° 74° 78°
Humidity 77% 70% 84% 75% 68% 59% 49% 42%
   
  6am 7am 8am 9am 10am 11am 12pm 1pm
Rain
 
1%
 
3%
 
7%
 
7%
 
7%
 
7%
 
7%
 
7%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  6am 7am 8am 9am 10am 11am 12pm 1pm
Wind (mph) 2 SSE 4 SSE 2 NNE 4 NNE 6 NE 8 NE 9 ENE 10 ENE
UV Index 0 0 1 2 3 5 5 6
Cloud Cover 32% 30% 63% 60% 55% 54% 68% 61%
Dew Point 51° 52° 51° 51° 52° 52° 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

Temperature History - Apr 18

more Historical Weather Data >
  Today Normal Record 4/18/2014
High 76° 64° 92° (2002) 66°
Low 55° 41° 14° (1926) 34°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:12 AM with 13:27 of sunlight, then sets at 7:39 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:12 AM with 13:35 of moolight, then sets at 7:47 PM

Ottawa Weather Report

Chicago: Rain to Span Second Half of Weekend

April 18, 2015; 5:11 AM ET

Weekend weather will be a combination of lower temperatures and significant rainfall, but Chicago will slowly pull out of the damp, cooler conditions through the new week. more >

Sat. Pollen

Sat. Dust & Dander

Sat. Wind Maps