• Early AM

    Sep 19

    Lo -1°

    Mainly clear

    Dust & Dander Weather
    • Precip
      0%
    • Wind
      Speed
      8 k/h
    • Cloud
      Cover
      8%
    more
  • Today

    Sep 19

    14°Lo 4°

    Mostly sunny and cool

    High indoor dust & dander levels
    • Precip
      0%
    • Wind
      Speed
      10 k/h
    • Cloud
      Cover
      20%
    more
  • Sat

    Sep 20

    20°Lo 16°

    A couple of afternoon showers

    Moderate indoor dust & dander levels
    • Precip
      60%
    • Wind
      Speed
      19 k/h
    • Cloud
      Cover
      60%
    more
  • Sun

    Sep 21

    20°Lo 7°

    Periods of rain

    Low indoor dust & dander levels
    • Precip
      65%
    • Wind
      Speed
      16 k/h
    • Cloud
      Cover
      76%
  • Mon

    Sep 22

    13°Lo 5°

    Partly sunny and cooler

    Low indoor dust & dander levels
    • Precip
      3%
    • Wind
      Speed
      13 k/h
    • Cloud
      Cover
      49%
    more
Next Previous
Hi 20° RealFeel® 19° Precipitation 65%

Day

N

E

S

W

  • W 16 km/h
  • Gusts: 39 km/h

Periods of rain

  • Max UV Index: 3 (Moderate)
  • Thunderstorms: 24%
  • Precipitation: 6 mm
  • Rain: 6 mm
  • Snow: 0 CM
  • Ice: 0 mm
  • Hours of Precipitation: 3.5 hrs
  • Hours of Rain: 3.5 hrs
Lo 7° RealFeel® 3° Precipitation 8%

Night

N

E

S

W

  • NW 11 km/h
  • Gusts: 22 km/h

Partly cloudy and cooler

  • Max UV Index: N/A
  • Thunderstorms: 24%
  • Precipitation: 0 mm
  • Rain: 0 mm
  • Snow: 0 CM
  • Ice: 0 mm
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Sep 21

more Historical Weather Data >
  Today Normal Record 9/21/2013
High 21° 18° 29° (1965) 20°
Low -2° (1956) 12°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:48 AM with 12:15 of sunlight, then sets at 7:03 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:15 AM with 13:26 of moolight, then sets at 5:41 PM

Top Story

Ottawa Weather Report

Cold Snap, Widespread Frost Looms for Northeast

September 19, 2014; 12:07 AM ET

The chilliest air of the season so far will settle over much of the Northeast into Friday and will bring frost to a large area. more >