• Tonight

    Apr 21

    Lo 35°

    Partly cloudy, brisk and cold

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
  • Wed

    Apr 22

    50°Lo 36°

    Breezy with clouds and sun

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

    Apr 23

    54°Lo 37°

    Cool with plenty of sun

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Fri

    Apr 24

    48°Lo 40°

    Sunshine giving way to clouds

    Low ragweed pollen levels
    • Precip
      4%
    • Wind
      Speed
      9 mph
    • Cloud
      Cover
      35%
    more
  • Sat

    Apr 25

    46°Lo 39°

    Cold with variable cloudiness

    Ragweed Pollen Weather
    • Precip
      7%
    • Wind
      Speed
      10 mph
    • Cloud
      Cover
      70%
    more
Next Previous
Hi 53° RealFeel® 46° Precipitation 55%

Day

N

E

S

W

  • W 22 mph
  • Gusts: 41 mph

Mostly cloudy and windy with a shower in spots

  • Max UV Index: 3 (Moderate)
  • Thunderstorms: 1%
  • Precipitation: 0.02 in
  • Rain: 0.02 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs
Lo 35° RealFeel® 24° Precipitation 25%

Night

N

E

S

W

  • W 15 mph
  • Gusts: 31 mph

Partly cloudy, brisk and cold; freezing temperatures in the normally colder spots

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

Northbrook Pollen Levels - April 21

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    High

  • Mold

    Pollen

    Low

Temperature History - Apr 21

more Historical Weather Data >
  Today Normal Record 4/21/2014
High 53° 61° N/A 72°
Low 35° 41° N/A 57°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:02 AM with 13:37 of sunlight, then sets at 7:39 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:18 AM with 14:44 of moolight, then sets at 11:02 PM

Northbrook Weather Report

Chicago: Temperatures to Plummet After Extended Warm Spell

April 21, 2015; 3:17 PM ET

After a two-week stretch of above-normal temperatures, Chicago is set to fall into a chilly pattern into late this week. more >

Tue. Pollen

Tue. Dust & Dander

Tue. Wind Maps