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    • Today

      Sep 27

      21° /9°
      Variable cloudiness
      • Beach & Pool
        • Beach & Pool
        • UV Index
      • Very Good
      • at the beach or pool
      • UV: 4 - Moderate
      • Cloud Cover: 66%
      • Precip: 50%
      More
    • Wed

      Sep 28

      22° /9°
      Partly sunny
      • Excellent
      • at the beach or pool
      • UV: 4 - Moderate
      • Cloud Cover: 26%
      • Precip: 7%
      More
    • Thu

      Sep 29

      17° /8°C
      Partly sunny and cooler
      • Good
      • at the beach or pool
      • UV: 4 - Moderate
      • Cloud Cover: 45%
      • Precip: 25%
    • Fri

      Sep 30

      18° /11°
      Sunshine with a stray shower
      • Good
      • at the beach or pool
      • UV: 4 - Moderate
      • Cloud Cover: 20%
      • Precip: 40%
      More
    • Sat

      Oct 1

      17° /12°
      Cloudy
      • Good
      • at the beach or pool
      • UV: 2 - Low
      • Cloud Cover: 96%
      • Precip: 25%
      More
    17°/14° RealFeel® 17°/11°
    Colder
    • 18 km/h
    • Precipitation: 25%
    • Rain: 0 mm
    • Snow: 0 CM
    • Humidity: 42%
    • Cloud Cover: 45%
    • Dew Point: 3° C
    • Visibility: 10 km

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/29/2015
    High 17° 17° N/A 22°
    Low N/A 13°

    Sunrise/Sunset

    • Sunrise: 6:59 AM
    • Sunset: 6:46 PM
    • Duration: 11:47 hr

    Moonrise/Moonset

    • Moonrise: 5:28 AM
    • Moonset: 6:22 PM
    • Duration: 12:54 hr
    Astronomy

    Ottawa Weather Report

    October to start mild in the East

    September 27, 2016; 12:08 PM ET

    Some needed rainfall for southern Ontario this week. More >