• Today

    Sep 20

    78°Lo 57°

    Heavy thunderstorms

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

    Sep 21

    63°Lo 45°

    Clouds breaking and cooler

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

    Sep 22

    66°Lo 49°

    Sunshine and patchy clouds

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

    Sep 23

    70°Lo 50°

    Mostly sunny and pleasant

    Moderate ragweed pollen levels
    • Precip
      4%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      11%
    more
  • Wed

    Sep 24

    72°Lo 53°

    A full day of sunshine

    Ragweed Pollen Weather
    • Precip
      10%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      10%
    more
Next Previous
A couple of showers and heavy thunderstorms 78° Lo 73° RealFeel® 77° / 70°

N

E

S

W

  • Precipitation: 64%
  • Rain: 0.35 in
  • Snow: 0 in
  • Humidity: 76%
  • Cloud Cover: 69%
  • Dew Point: 67° F
  • Visibility: 8 mi
12 mph

Temperature History - Sep 20

more Historical Weather Data >
  Today Normal Record 9/20/2013
High 78° 71° N/A 74°
Low 57° 52° N/A 56°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:36 AM with 12:17 of sunlight, then sets at 6:53 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:13 AM with 13:45 of moolight, then sets at 4:58 PM

Top Story

Lake Forest Weather Report

Chicago: Thunderstorms to Precede More Cool Air

September 20, 2014; 4:28 AM ET

Chicago is facing the threat of some disruptive thunderstorms on Saturday. more >

Sat. Pollen

Sat. Dust & Dander

Sat. Wind Maps