• Tonight

    Sep 2

    Lo 57°

    Clear

    Ragweed Pollen Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      70 - High
    • Tree
      Pollen
      0 - Low
    more
  • Wed

    Sep 3

    84°Lo 69°

    Partly sunny

    High ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      70 - High
    • Tree
      Pollen
      0 - Low
  • Thu

    Sep 4

    89°Lo 71°

    Partly sunny, warm and humid

    High ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      70 - High
    • Tree
      Pollen
      0 - Low
    more
  • Fri

    Sep 5

    77°Lo 57°

    Not as warm with t-storms

    High ragweed pollen levels
    • Precip
      64%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      76%
    more
  • Sat

    Sep 6

    72°Lo 51°

    Mostly sunny and nice

    Ragweed Pollen Weather
    • Precip
      11%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      21%
    more
Next Previous
Hi 84° RealFeel® 84° Precipitation 13%

Day

N

E

S

W

  • S 7 mph
  • Gusts: 14 mph

Partly sunny

  • Max UV Index: 6 (High)
  • Thunderstorms: 18%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 69° RealFeel® 65° Precipitation 53%

Night

N

E

S

W

  • SSE 9 mph
  • Gusts: 14 mph

Some clouds, more humid; a thunderstorm late

  • Max UV Index: N/A
  • Thunderstorms: 60%
  • Precipitation: 0.1 in
  • Rain: 0.1 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs

Crystal Lake Pollen Levels - September 3

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

    Pollen

    Low

  • Weed

    Pollen

    High

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Sep 3

more Historical Weather Data >
  Today Normal Record 9/3/2013
High 84° 77° N/A 73°
Low 69° 54° N/A 44°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:20 AM with 13:04 of sunlight, then sets at 7:24 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:09 PM with 10:00 of moolight, then sets at 1:09 AM

Top Story

Crystal Lake Weather Report

Chicago: Cooler, Less Humid Air to Return by Late Week

September 2, 2014; 6:11 PM ET

While Labor Day marks an unofficial end to the summer, the Chicago area will see warm, humid conditions continue before temperatures slide late in the week. more >

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps