• Tonight

    Jul 27

    Lo 63°

    Clear to partly cloudy

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Tue

    Jul 28

    88°Lo 73°

    Partly sunny, warm and humid

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

    Jul 29

    83°Lo 62°

    A morning t-storm in spots

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

    Jul 30

    85°Lo 64°

    Sunny and comfortable

    Low ragweed pollen levels
    • Precip
      11%
    • Wind
      Speed
      12 mph
    • Cloud
      Cover
      0%
    more
  • Fri

    Jul 31

    87°Lo 64°

    Mostly sunny and warm

    Ragweed Pollen Weather
    • Precip
      25%
    • Wind
      Speed
      10 mph
    • Cloud
      Cover
      9%
    more
Next Previous
Hi 88° RealFeel® 93° Precipitation 19%

Day

N

E

S

W

  • SE 8 mph
  • Gusts: 13 mph

Warm and humid with partial sunshine

  • Max UV Index: 7 (High)
  • 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 73° RealFeel® 75° Precipitation 63%

Night

N

E

S

W

  • SSE 8 mph
  • Gusts: 13 mph

Mainly cloudy, warm and humid; a late-night shower or thunderstorm

  • Max UV Index: N/A
  • Thunderstorms: 60%
  • Precipitation: 0.25 in
  • Rain: 0.25 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs

Crystal Lake Pollen Levels - July 28

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Moderate

  • Mold

    Pollen

    Low

Temperature History - Jul 28

more Historical Weather Data >
  Today Normal Record 7/28/2014
High 88° 81° N/A 70°
Low 73° 60° N/A 51°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:42 AM with 14:35 of sunlight, then sets at 8:17 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:49 PM with 10:01 of moolight, then sets at 3:50 AM

Crystal Lake Weather Report

Chicago: Heat and Humidity to Build Through Midweek

July 27, 2015; 3:35 PM ET

While cooler than average temperatures start off the work-week in Chicagoland, it will not last long as the heat and humidity will begin to build back in through the middle of the week. more >

Tue. Pollen

Tue. Dust & Dander

Tue. Wind Maps