• Tonight

    Sep 17

    Lo 63°

    A shower or thunderstorm late

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
    more
  • Thu

    Sep 18

    78°Lo 64°

    Partly sunny with a t-storm

    Moderate ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
  • Fri

    Sep 19

    85°Lo 68°

    Warmer with clouds and sun

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

    Sep 20

    82°Lo 61°

    Showers and a heavier t-storm

    Moderate ragweed pollen levels
    • Precip
      80%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      86%
    more
  • Sun

    Sep 21

    81°Lo 53°

    Partly sunny and nice

    Ragweed Pollen Weather
    • Precip
      5%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      26%
    more
Next Previous
Hi 78° RealFeel® 77° Precipitation 56%

Day

N

E

S

W

  • ESE 8 mph
  • Gusts: 13 mph

Times of clouds and sun with a shower or thunderstorm around

  • Max UV Index: 3 (Moderate)
  • Thunderstorms: 60%
  • Precipitation: 0.22 in
  • Rain: 0.22 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 2 hrs
  • Hours of Rain: 2 hrs
Lo 64° RealFeel® 61° Precipitation 25%

Night

N

E

S

W

  • SE 6 mph
  • Gusts: 10 mph

Mainly clear and mild

  • 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 - September 18

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

    Pollen

    Low

  • Weed

    Pollen

    Moderate

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Sep 18

more Historical Weather Data >
  Today Normal Record 9/18/2013
High 78° 78° 100° (1931) 92°
Low 64° 56° 38° (1901) 67°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:05 AM with 12:20 of sunlight, then sets at 7:25 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:01 AM with 14:12 of moolight, then sets at 4:13 PM

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps