• Tonight

    Jul 31

    Lo 12°

    Partly cloudy

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
  • Fri

    Aug 1

    26°Lo 14°

    An afternoon shower or two

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

    Aug 2

    26°Lo 15°

    A p.m. t-storm in spots

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

    Aug 3

    27°Lo 15°

    Mainly cloudy with a t-storm

    Low ragweed pollen levels
    • Precip
      55%
    • Wind
      Speed
      3 k/h
    • Cloud
      Cover
      76%
    more
  • Mon

    Aug 4

    26°Lo 14°

    A stray afternoon shower

    Ragweed Pollen Weather
    • Precip
      54%
    • Wind
      Speed
      3 k/h
    • Cloud
      Cover
      40%
    more
Next Previous
Partly cloudy 14° Lo 12° RealFeel® 14° / 10°

N

E

S

W

  • Precipitation: 25%
  • Rain: 0 mm
  • Snow: 0 CM
  • Humidity: 90%
  • Cloud Cover: 26%
  • Dew Point: 12° C
  • Visibility: 10 km
8 km/h

Temperature History - Jul 31

more Historical Weather Data >
  Today Normal Record 7/31/2013
High 22° 26° 35° (2012) 27°
Low 12° 15° (1978) 12°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:45 AM with 14:47 of sunlight, then sets at 8:32 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:26 AM with 12:00 of moolight, then sets at 10:26 PM

Top Story

Ottawa Weather Report

Smoke From Canada Wildfires to Impact Chicago, NYC

July 31, 2014; 5:02 AM ET

Ongoing wildfires in Ontario and western Canada will impact areas across the Great Lakes to the Northeast through the weekend. more >