• Today

    Sep 21

    67°Lo 42°

    Cooler with some sun

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

    Sep 22

    68°Lo 46°

    Mostly sunny

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

    Sep 23

    74°Lo 50°

    Mostly sunny and pleasant

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

    Sep 24

    76°Lo 50°

    Sunny and pleasant

    Low ragweed pollen levels
    • Precip
      11%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      10%
    more
  • Thu

    Sep 25

    79°Lo 51°

    Mostly sunny and pleasant

    Ragweed Pollen Weather
    • Precip
      12%
    • Wind
      Speed
      3 mph
    • Cloud
      Cover
      25%
    more
Next Previous
Hi 68° RealFeel® 73° Precipitation 1%

Day

N

E

S

W

  • NW 3 mph
  • Gusts: 5 mph

Mostly sunny

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 46° RealFeel® 46° Precipitation 3%

Night

N

E

S

W

  • SW 2 mph
  • Gusts: 2 mph

Clear

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • 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 - September 22

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Sep 22

more Historical Weather Data >
  Today Normal Record 9/22/2013
High 68° 74° 93° (1895) 75°
Low 46° 51° 34° (1995) 47°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:43 AM with 12:10 of sunlight, then sets at 6:53 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:11 AM with 12:49 of moolight, then sets at 6:00 PM

Top Story

Ottawa Weather Report

Drier Air Heads into Chicago Following Storms

September 21, 2014; 5:00 AM ET

After storms clipped Chicagoland early Sunday, drier air will filter into the area for the rest of the week. more >

Mon. Pollen

Mon. Dust & Dander

Mon. Wind Maps