• Today

    Dec 18

    29°Lo 20°

    Mostly cloudy

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

    Dec 19

    32°Lo 24°

    Mostly cloudy

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

    Dec 20

    36°Lo 26°

    Clouds giving way to some sun

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

    Dec 21

    40°Lo 31°

    Mostly cloudy

    Low ragweed pollen levels
    • Precip
      12%
    • Wind
      Speed
      13 mph
    • Cloud
      Cover
      91%
    more
  • Mon

    Dec 22

    42°Lo 36°

    Cloudy, afternoon rain

    Ragweed Pollen Weather
    • Precip
      75%
    • Wind
      Speed
      14 mph
    • Cloud
      Cover
      98%
    more
Next Previous
Next 8 hours >
  Thu
12am
1am 2am 3am 4am 5am 6am 7am
  12am 1am 2am 3am 4am 5am 6am 7am
Forecast
Cloudy
Mostly Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Temp (°F) 22° 23° 23° 22° 22° 21° 20° 22°
RealFeel® 22° 23° 23° 23° 24° 23° 22° 24°
Humidity 75% 73% 75% 77% 75% 77% 79% 76%
   
  12am 1am 2am 3am 4am 5am 6am 7am
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
1%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  12am 1am 2am 3am 4am 5am 6am 7am
Wind (mph) 4 N 2 N 2 N 2 N 1 N 1 N 1 N 1 NNW
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 65% 75% 72% 63% 64% 68% 74% 61%
Dew Point 15° 16° 16° 16° 15° 14° 14° 15°
Middle Grid line 25 F Middle Grid line 20 F Middle Grid line 15 F

Temperature History - Dec 18

more Historical Weather Data >
  Today Normal Record 12/18/2013
High 29° 33° 59° (1962) 40°
Low 20° 17° -5° (1963) 13°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:17 AM with 9:12 of sunlight, then sets at 4:29 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:29 AM with 10:42 of moolight, then sets at 2:11 PM

Peru Weather Report

Chicago: White Christmas in the Offing

December 18, 2014; 12:30 PM ET

While the next couple of days will be tranquil for the Chicago area, Christmas Eve could deliver enough snow to blanket the city. more >

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps