• Tonight

    Aug 21

    Lo 73°

    Showers and a heavier t-storm

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
    more
  • Fri

    Aug 22

    89°Lo 70°

    Warmer with a thunderstorm

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

    Aug 23

    84°Lo 69°

    A p.m. t-storm possible

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

    Aug 24

    90°Lo 71°

    Clouds and sun; hot, humid

    Moderate ragweed pollen levels
    • Precip
      25%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      48%
    more
  • Mon

    Aug 25

    89°Lo 68°

    An afternoon thunderstorm

    Ragweed Pollen Weather
    • Precip
      53%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      34%
    more
Next Previous
Hi 89° RealFeel® 103° Precipitation 62%

Day

N

E

S

W

  • SW 5 mph
  • Gusts: 9 mph

Times of clouds and sun with a shower or thunderstorm; humid and warmer

  • Max UV Index: 6 (High)
  • Thunderstorms: 60%
  • Precipitation: 0.41 in
  • Rain: 0.41 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1.5 hrs
  • Hours of Rain: 1.5 hrs
Lo 70° RealFeel® 70° Precipitation 40%

Night

N

E

S

W

  • NNW 3 mph
  • Gusts: 5 mph

A shower or thunderstorm in spots early in the evening; otherwise, mostly cloudy, warm and humid

  • Max UV Index: N/A
  • Thunderstorms: 60%
  • Precipitation: 0.04 in
  • Rain: 0.04 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0.5 hrs

Crystal Lake Pollen Levels - August 22

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Grass

    Pollen

    Low

  • Weed

    Pollen

    Moderate

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Aug 22

more Historical Weather Data >
  Today Normal Record 8/22/2013
High 89° 79° N/A 73°
Low 70° 58° N/A 56°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:08 AM with 13:36 of sunlight, then sets at 7:44 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:30 AM with 14:23 of moolight, then sets at 5:53 PM

Top Story

Crystal Lake Weather Report

Chicago: Threat of Thunderstorms Lingers After Heavy Rains Flood Wrigley Field

August 21, 2014; 12:59 PM ET

While there may be a mix of sunshine and clouds over the area, Chicago is facing more rounds of thunderstorms over the next several days. more >

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps