• Mon

    Apr 20

    51°Lo 42°

    Sunny

    Ragweed Pollen Weather
    • Precip
      20%
    • Wind
      Speed
      2 mph
    • Cloud
      Cover
      0%
    more
  • Tue

    Apr 21

    62°Lo 47°

    Mostly sunny

    Ragweed Pollen Weather
    • Precip
      10%
    • Wind
      Speed
      17 mph
    • Cloud
      Cover
      15%
  • Wed

    Apr 22

    63°Lo 47°

    Mostly cloudy

    Ragweed Pollen Weather
    • Precip
      25%
    • Wind
      Speed
      10 mph
    • Cloud
      Cover
      73%
    more
  • Thu

    Apr 23

    63°Lo 43°

    Mostly sunny

    Ragweed Pollen Weather
    • Precip
      0%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      29%
    more
  • Fri

    Apr 24

    62°Lo 40°

    Partly sunny

    Ragweed Pollen Weather
    • Precip
      1%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      45%
    more
Next Previous
Hi 62° RealFeel® 60° Precipitation 10%

Day

N

E

S

W

  • SSW 17 mph
  • Gusts: 36 mph

Mostly sunny

  • Max UV Index: 7 (High)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 47° RealFeel® 41° Precipitation 10%

Night

N

E

S

W

  • SSW 14 mph
  • Gusts: 30 mph

Clear

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Apr 21

more Historical Weather Data >
  Today Normal Record 4/21/2014
High 62° 59° N/A 67°
Low 47° 37° N/A 51°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:03 AM with 13:38 of sunlight, then sets at 7:41 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:19 AM with 14:46 of moolight, then sets at 11:05 PM

Crystal Lake Weather Report

Chicago: Temperatures to Rebound Following Cold Start to the Weekend

March 26, 2015; 11:42 PM ET

Another surge of cold air is set to blast Chicago, bringing January-like temperatures to the area for the start of the weekend before temperatures rebound into the 50s for the new week. more >

Making a Forecast: The Sixth Sense

Feb 16, 2015; 5:00 AM ET What steps go into making a forecast?