• Early AM

    Sep 2

    Lo 62°

    Partly cloudy

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

    Sep 2

    81°Lo 62°

    Clouds and sun; less humid

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

    Sep 3

    83°Lo 69°

    Partly sunny

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

    Sep 4

    86°Lo 71°

    Times of sun and clouds

    High ragweed pollen levels
    • Precip
      25%
    • Wind
      Speed
      11 mph
    • Cloud
      Cover
      64%
    more
  • Fri

    Sep 5

    76°Lo 58°

    A couple of thunderstorms

    High ragweed pollen levels
    • Precip
      60%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      76%
Next Previous
Hi 76° RealFeel® 78° Precipitation 60%

Day

N

E

S

W

  • NNW 8 mph
  • Gusts: 12 mph

Mostly cloudy and not as warm with a couple of showers and a thunderstorm

  • Max UV Index: 4 (Moderate)
  • Thunderstorms: 60%
  • Precipitation: 0.21 in
  • Rain: 0.21 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 3 hrs
  • Hours of Rain: 3 hrs
Lo 58° RealFeel® 54° Precipitation 13%

Night

N

E

S

W

  • NNE 5 mph
  • Gusts: 9 mph

Mostly cloudy and not as warm

  • Max UV Index: N/A
  • Thunderstorms: 6%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Sep 5

more Historical Weather Data >
  Today Normal Record 9/5/2013
High 76° 77° N/A 70°
Low 58° 58° N/A 49°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:21 AM with 12:58 of sunlight, then sets at 7:19 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:49 PM with 10:33 of moolight, then sets at 3:22 AM

Top Story

Lake Forest Weather Report

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

September 1, 2014; 8:54 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 >

Fri. Dust & Dander

Fri. Wind Maps