• Tonight

    May 27

    Lo 59°

    Mainly clear

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
  • Thu

    May 28

    85°Lo 64°

    Mostly sunny and warmer

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

    May 29

    83°Lo 59°

    Thundershower

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Sat

    May 30

    64°Lo 44°

    Occasional rain and a t-storm

    Low ragweed pollen levels
    • Precip
      55%
    • Wind
      Speed
      14 mph
    • Cloud
      Cover
      83%
    more
  • Sun

    May 31

    67°Lo 46°

    Partly sunny

    Ragweed Pollen Weather
    • Precip
      25%
    • Wind
      Speed
      9 mph
    • Cloud
      Cover
      45%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
8am
9am 10am 11am 12pm 1pm 2pm 3pm
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Forecast
Mostly Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Mostly Cloudy
Cloudy
Cloudy
Temp (°F) 65° 67° 70° 73° 74° 75° 76° 78°
RealFeel® 63° 65° 69° 72° 74° 76° 76° 77°
Humidity 81% 73% 66% 60% 55% 52% 49% 48%
   
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Rain
 
7%
 
7%
 
7%
 
7%
 
7%
 
5%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Wind (mph) 12 WSW 12 WSW 13 WSW 14 WNW 14 W 15 W 15 WNW 14 NW
UV Index 1 1 2 2 3 4 3 3
Cloud Cover 76% 97% 94% 96% 95% 84% 95% 94%
Dew Point 59° 58° 59° 59° 57° 56° 56° 57°
Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F

Temperature History - May 27

more Historical Weather Data >
  Today Normal Record 5/27/2014
High 78° 76° 95° (1911) 83°
Low 59° 54° 33° (1895) 64°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:27 AM with 14:51 of sunlight, then sets at 8:18 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:32 PM with 12:10 of moolight, then sets at 2:42 AM

Ottawa Weather Report

Chicago: Temperatures to Take Dramatic Swing at Late Week

May 27, 2015; 2:24 PM ET

Following the chance for early-week storms, temperatures in the Chicago area will be on a roller coaster leading into the weekend. more >

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps