• Today

    May 29

    82°Lo 62°

    Clouds and sunshine

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

    May 30

    86°Lo 64°

    Partly sunny and very warm

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

    May 31

    85°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°

    Clouds giving way to some sun

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Hi 86° RealFeel® 92° Precipitation 25%

Day

N

E

S

W

  • W 5 mph
  • Gusts: 8 mph

Partly sunny and very warm

  • Max UV Index: 7 (High)
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 64° RealFeel® 64° Precipitation 25%

Night

N

E

S

W

  • SW 4 mph
  • Gusts: 6 mph

Partly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 24%
  • 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 30

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

    Moderate

  • Ragweed Pollen

    Moderate

  • Mold

    High

  • Grass Pollen

    Moderate

Temperature History - May 30

more Historical Weather Data >
  Today Normal Record 5/30/2015
High 86° 76° 98° (1934) 68°
Low 64° 55° 35° (1930) 44°

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 1:59 AM with 12:01 of moolight, then sets at 2:00 PM

Ottawa Weather Report

Chicago: Cooler, less humid conditions to arrive by Thursday

May 29, 2016; 12:19 PM ET

After a warm start to the week, cooler and less humid conditions will arrive by the end of the week across the Chicago area. more >

Mon. Pollen

Mon. Dust & Dander

Mon. Wind Maps