• Today

    Mar 4

    30°Lo 9°

    Cloudy, breezy and colder

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

    Mar 5

    19°Lo -2°

    Partly sunny and colder

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

    Mar 6

    23°Lo 17°

    Sunny, breezy and quite cold

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

    Mar 7

    39°Lo 23°

    Mostly cloudy and not as cold

    Low ragweed pollen levels
    • Precip
      9%
    • Wind
      Speed
      16 mph
    • Cloud
      Cover
      78%
    more
  • Sun

    Mar 8

    39°Lo 26°

    Mostly cloudy and chilly

    Ragweed Pollen Weather
    • Precip
      23%
    • Wind
      Speed
      12 mph
    • Cloud
      Cover
      93%
    more
Next Previous
Hi 30° RealFeel® 27° Precipitation 25%

Day

N

E

S

W

  • WNW 14 mph
  • Gusts: 26 mph

Cloudy, breezy and colder

  • Max UV Index: 2 (Low)
  • 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 9° RealFeel® -4° Precipitation 55%

Night

N

E

S

W

  • NNW 14 mph
  • Gusts: 23 mph

Breezy this evening with a little snow; mostly cloudy and colder

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0.1 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 0 hrs

Ottawa Pollen Levels - March 4

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Mar 4

more Historical Weather Data >
  Today Normal Record 3/4/2014
High 30° 43° N/A 26°
Low 25° N/A

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:06 AM with 11:24 of sunlight, then sets at 6:30 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:48 PM with 13:02 of moolight, then sets at 6:50 AM

Making a Forecast: The Sixth Sense

Feb 16, 2015; 5:00 AM ET What steps go into making a forecast?

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps