• Today

    Sep 17

    71°Lo 47°

    Mostly sunny and pleasant

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

    Sep 18

    72°Lo 49°

    Sunny and pleasant

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

    Sep 19

    76°Lo 60°

    Pleasant with periods of sun

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Sat

    Sep 20

    81°Lo 61°

    A couple of p.m. t-storms

    Low ragweed pollen levels
    • Precip
      66%
    • Wind
      Speed
      12 mph
    • Cloud
      Cover
      77%
    more
  • Sun

    Sep 21

    77°Lo 54°

    A morning shower possible

    Ragweed Pollen Weather
    • Precip
      30%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      51%
Next Previous

Want more Hourly forecasting?

Subscribe to our Premium Membership

Hourly

Get 15 days of hourly forecasts and daily details, plus the interactive Planner and more all ad-free when you subscribe to our Premium service.

Temperature History - Sep 21

more Historical Weather Data >
  Today Normal Record 9/21/2013
High 77° 75° 95° (1940) 72°
Low 54° 52° 35° (1913) 44°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:42 AM with 12:13 of sunlight, then sets at 6:55 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:14 AM with 13:17 of moolight, then sets at 5:31 PM

Top Story

Ottawa Weather Report

Chicago: Cooler, Fall-Like Temperatures to Linger

September 17, 2014; 1:12 AM ET

The cooler, below-average conditions responsible for the fall-like feel will hold through the end of the week over the Chicago area. more >

Sun. Dust & Dander

Sun. Wind Maps