• Today

    May 4

    53°Lo 36°

    Turning cloudy and cooler

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      3 - Moderate
  • Thu

    May 5

    62°Lo 40°

    Mostly sunny and warmer

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      3 - Moderate
    more
  • Fri

    May 6

    78°Lo 58°

    Pleasant and warmer

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Sat

    May 7

    66°Lo 39°

    A shower and t-storm around

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      3 - Moderate
    more
  • Sun

    May 8

    71°Lo 46°

    Mainly cloudy

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Hi 53° RealFeel® 48° Precipitation 40%

Day

N

E

S

W

  • N 18 mph
  • Gusts: 43 mph

Turning cloudy, breezy and cooler with a shower in places this afternoon

  • Max UV Index: 4 (Moderate)
  • Thunderstorms: 20%
  • Precipitation: 0.01 in
  • Rain: 0.01 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0.5 hrs
Lo 36° RealFeel® 22° Precipitation 15%

Night

N

E

S

W

  • N 15 mph
  • Gusts: 36 mph

Partly cloudy, breezy and chilly

  • Max UV Index: N/A
  • Thunderstorms: 20%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Crystal Lake Pollen Levels - May 4

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Tree Pollen

    Moderate

  • Ragweed Pollen

    Low

  • Mold

    Low

  • Grass Pollen

    Low

Temperature History - May 4

more Historical Weather Data >
  Today Normal Record 5/4/2015
High 53° 64° N/A 71°
Low 36° 41° N/A 49°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:44 AM with 14:13 of sunlight, then sets at 7:57 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:34 AM with 12:55 of moolight, then sets at 5:29 PM

Crystal Lake Weather Report

Chicago: Temperatures to soar late this week

May 4, 2016; 8:55 AM ET

Temperatures will soar into the 70s by late in the week in the Chicago area. more >

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps