• Fri

    Sep 18

    67°Lo 50°

    Sun followed by clouds

    Ragweed Pollen Weather
    • Precip
      62%
    • Wind
      Speed
      10 mph
    • Cloud
      Cover
      99%
  • Sat

    Sep 19

    66°Lo 53°

    Rain

    Ragweed Pollen Weather
    • Precip
      74%
    • Wind
      Speed
      17 mph
    • Cloud
      Cover
      65%
    more
  • Sun

    Sep 20

    68°Lo 52°

    Times of clouds and sun

    Ragweed Pollen Weather
    • Precip
      5%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      0%
    more
  • Mon

    Sep 21

    67°Lo 50°

    Mostly sunny

    Ragweed Pollen Weather
    • Precip
      69%
    • Wind
      Speed
      14 mph
    • Cloud
      Cover
      75%
    more
  • Tue

    Sep 22

    72°Lo 45°

    Rain tapering to a shower

    Ragweed Pollen Weather
    • Precip
      20%
    • Wind
      Speed
      9 mph
    • Cloud
      Cover
      6%
    more
Next Previous
Hi 67° RealFeel® 67° Precipitation 25%

Day

N

E

S

W

  • E 8 mph
  • Gusts: 16 mph

Sun followed by clouds

  • Max UV Index: 4 (Moderate)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 50° RealFeel® 40° Precipitation 62%

Night

N

E

S

W

  • ESE 10 mph
  • Gusts: 16 mph

Considerable cloudiness with a little rain

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • Precipitation: 0.16 in
  • Rain: 0.16 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 2 hrs
  • Hours of Rain: 2 hrs

Temperature History - Sep 18

more Historical Weather Data >
  Today Normal Record 9/18/2014
High 67° 72° N/A 64°
Low 50° 48° N/A 40°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:36 AM with 12:22 of sunlight, then sets at 6:58 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:33 AM with 10:24 of moolight, then sets at 9:57 PM

Crystal Lake Weather Report

Chicago: Heat, Humidity to Build Through Week

August 30, 2015; 1:00 AM ET

A turn to warmer conditions is in store for the Chicago area heading into the new week. more >