• Tonight

    Sep 20

    Lo 58°

    A thunderstorm in spots late

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
  • Sun

    Sep 21

    62°Lo 47°

    Clouds breaking and cooler

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

    Sep 22

    65°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 51°

    Mostly sunny and nice

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

    Sep 24

    73°Lo 52°

    A full day of sunshine

    Ragweed Pollen Weather
    • Precip
      10%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      10%
    more
Next Previous
Hi 76° RealFeel® 76° Precipitation 55%

Day

N

E

S

W

  • SW 11 mph
  • Gusts: 21 mph

More humid; a morning shower, then a heavy thunderstorm; thunderstorms can bring damaging winds

  • Max UV Index: 4 (Moderate)
  • Thunderstorms: 60%
  • Precipitation: 0.04 in
  • Rain: 0.04 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs
Lo 58° RealFeel® 52° Precipitation 50%

Night

N

E

S

W

  • W 7 mph
  • Gusts: 16 mph

Mostly cloudy with a shower or thunderstorm in spots late

  • Max UV Index: N/A
  • Thunderstorms: 60%
  • Precipitation: 0.04 in
  • Rain: 0.04 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0.5 hrs

Northbrook Pollen Levels - September 20

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

    Pollen

    Low

  • Weed

    Pollen

    Moderate

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Sep 20

more Historical Weather Data >
  Today Normal Record 9/20/2013
High 76° 74° N/A 76°
Low 58° 54° N/A 61°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:36 AM with 12:16 of sunlight, then sets at 6:52 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

Northbrook 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