• Today

    May 29

    81°Lo 62°

    Periods of clouds and sun

    Moderate ragweed pollen levels
    • Grass
      Pollen
      3 - Moderate
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      3 - Moderate
  • Mon

    May 30

    86°Lo 63°

    Partly sunny and very warm

    Moderate ragweed pollen levels
    • Grass
      Pollen
      3 - Moderate
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      3 - Moderate
    more
  • Tue

    May 31

    84°Lo 65°

    Mainly cloudy with a t-storm

    Moderate ragweed pollen levels
    • Grass
      Pollen
      5 - High
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      3 - Moderate
    more
  • Wed

    Jun 1

    79°Lo 61°

    Cloudy, a couple of t-storms

    Moderate ragweed pollen levels
    • Grass
      Pollen
      3 - Moderate
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      3 - Moderate
    more
  • Thu

    Jun 2

    77°Lo 54°

    A couple of morning t-storms

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Hi 81° RealFeel® 80° Precipitation 25%

Day

N

E

S

W

  • W 14 mph
  • Gusts: 37 mph

Warm and muggy with periods of sun; breezy this afternoon

  • Max UV Index: 7 (High)
  • Thunderstorms: 6%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 62° RealFeel® 62° Precipitation 7%

Night

N

E

S

W

  • WSW 5 mph
  • Gusts: 17 mph

Clear

  • Max UV Index: N/A
  • Thunderstorms: 4%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Ottawa Pollen Levels - May 29

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Tree Pollen

    Moderate

  • Ragweed Pollen

    Moderate

  • Mold

    High

  • Grass Pollen

    Moderate

Temperature History - May 29

more Historical Weather Data >
  Today Normal Record 5/29/2015
High 81° 76° 99° (1934) 83°
Low 62° 55° 34° (1930) 65°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:25 AM with 14:56 of sunlight, then sets at 8:21 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:24 AM with 11:28 of moolight, then sets at 12:52 PM

Ottawa Weather Report

Chicago: Heat, humidity to unfold for Memorial Day

May 29, 2016; 6:05 AM ET

The unofficial start of summer will feel like the upcoming season on Monday in the Chicago area. more >

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps