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  • Tonight

    Sep 16

    Clear to partly cloudy Lo 5°
  • Wed

    Sep 17

    Some sun, then clouds 17°Lo 5°
    more
  • Thu

    Sep 18

    Mostly sunny and cool 12°Lo 1°
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  • Fri

    Sep 19

    Mostly sunny and pleasant 15°Lo 6°
    more
  • Sat

    Sep 20

    Mostly cloudy and breezy 20°Lo 16°
    more
Clouds and sun 18° Lo 14° RealFeel® 17° / 12°

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  • Precipitation: 1%
  • Rain: 0 mm
  • Snow: 0 CM
  • Humidity: 52%
  • Cloud Cover: 50%
  • Dew Point: 7° C
  • Visibility: 15 km
14 km/h

Temperature History - Sep 16

more Historical Weather Data >
  Today Normal Record 9/16/2013
High 18° 19° 34° (1939) 12°
Low (1948)

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:42 AM with 12:30 of sunlight, then sets at 7:12 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:57 AM with -11:-12 of moolight, then sets at 2:45 PM

Top Story

Ottawa Weather Report

Widespread Frost, Killing Freeze to Seize Northeast Late This Week

September 16, 2014; 9:15 PM ET

The chilliest air of the season so far will settle over much of the Northeast Thursday into Friday and will bring frost to more areas than experienced frost early this week. more >