• Thu

    Sep 4

    88°Lo 70°

    Partly sunny, warm and humid

    Ragweed Pollen Weather
    • Precip
      25%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      53%
  • Fri

    Sep 5

    86°Lo 65°

    Partly sunny with a t-storm

    Ragweed Pollen Weather
    • Precip
      56%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      36%
    more
  • Sat

    Sep 6

    79°Lo 55°

    Clouds, a little rain; warm

    Ragweed Pollen Weather
    • Precip
      56%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      57%
    more
  • Sun

    Sep 7

    71°Lo 56°

    Sunny

    Ragweed Pollen Weather
    • Precip
      1%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      9%
    more
  • Mon

    Sep 8

    70°Lo 58°

    Mostly sunny

    Ragweed Pollen Weather
    • Precip
      3%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      23%
    more
Next Previous
Hi 88° RealFeel® 95° Precipitation 25%

Day

N

E

S

W

  • S 7 mph
  • Gusts: 12 mph

Very warm and humid with times of sun and clouds

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 70° RealFeel® 69° Precipitation 51%

Night

N

E

S

W

  • SSW 6 mph
  • Gusts: 9 mph

Warm and humid; watch for a strong evening thunderstorm followed by a thunderstorm late

  • Max UV Index: N/A
  • Thunderstorms: 95%
  • Precipitation: 0.16 in
  • Rain: 0.16 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1.5 hrs
  • Hours of Rain: 1.5 hrs

Temperature History - Sep 4

more Historical Weather Data >
  Today Normal Record 9/4/2013
High 88° 77° N/A 80°
Low 70° 54° N/A 47°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:21 AM with 13:01 of sunlight, then sets at 7:22 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:02 PM with 10:11 of moolight, then sets at 2:13 AM

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Crystal Lake Weather Report

Severe Storms to Threaten Chicago on Labor Day

August 30, 2014; 8:55 PM ET

Chicago will become the target of severe thunderstorms as the Labor Day holiday weekend comes to an end, creating dangers for those with outdoor plans. more >