• Today

    Mar 1

    28°Lo 16°

    Snow much of the time

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

    Mar 2

    28°Lo 15°

    Cold with periods of sun

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

    Mar 3

    40°Lo 28°

    Wintry mix to rain

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

    Mar 4

    29°Lo 4°

    Low clouds, breezy and colder

    Low ragweed pollen levels
    • Precip
      20%
    • Wind
      Speed
      17 mph
    • Cloud
      Cover
      95%
    more
  • Thu

    Mar 5

    19°Lo 2°

    Mostly cloudy and colder

    Ragweed Pollen Weather
    • Precip
      11%
    • Wind
      Speed
      13 mph
    • Cloud
      Cover
      76%
    more
Next Previous
Hi 28° RealFeel® 34° Precipitation 100%

Day

N

E

S

W

  • W 2 mph
  • Gusts: 8 mph

Snow much of the time, accumulating an additional 2-4 inches

  • Max UV Index: 0 (Low)
  • Thunderstorms: 0%
  • Precipitation: 0.27 in
  • Rain: 0 in
  • Snow: 3.4 in
  • Ice: 0 in
  • Hours of Precipitation: 5.5 hrs
  • Hours of Rain: 0 hrs
Lo 16° RealFeel® 4° Precipitation 62%

Night

N

E

S

W

  • W 10 mph
  • Gusts: 17 mph

A little accumulation of snow early this evening; otherwise, very cold with considerable cloudiness

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • Precipitation: 0.01 in
  • Rain: 0 in
  • Snow: 0.2 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 0 hrs

Ottawa Pollen Levels - March 1

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Mar 1

more Historical Weather Data >
  Today Normal Record 3/1/2014
High 28° 42° N/A 46°
Low 16° 24° N/A 25°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:11 AM with 11:16 of sunlight, then sets at 6:27 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:00 PM with 14:13 of moolight, then sets at 5:13 AM

Making a Forecast: The Sixth Sense

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

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps