• Tonight

    Jul 31

    Lo 12°

    Partly cloudy

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
    more
  • 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%
  • 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
Hi 27° RealFeel® 30° Precipitation 55%

Day

N

E

S

W

  • S 3 km/h
  • Gusts: 6 km/h

Mostly cloudy with a shower or thunderstorm around

  • Max UV Index: 6 (High)
  • Thunderstorms: 40%
  • Precipitation: 3 mm
  • Rain: 3 mm
  • Snow: 0 CM
  • Ice: 0 mm
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs
Lo 15° RealFeel® 14° Precipitation 77%

Night

N

E

S

W

  • ESE 3 km/h
  • Gusts: 6 km/h

Plenty of clouds with a couple of showers late

  • Max UV Index: N/A
  • Thunderstorms: 20%
  • Precipitation: 5 mm
  • Rain: 5 mm
  • Snow: 0 CM
  • Ice: 0 mm
  • Hours of Precipitation: 1.5 hrs
  • Hours of Rain: 1.5 hrs

Temperature History - Aug 3

more Historical Weather Data >
  Today Normal Record 8/3/2013
High 27° 26° 35° (1944) 24°
Low 15° 15° (1982) 13°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:49 AM with 14:39 of sunlight, then sets at 8:28 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:31 PM with 10:27 of moolight, then sets at 11:58 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 >