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    • Tonight

      Sep 30

      Lo
      Mostly cloudy
      • Asthma
      • Weather
      • Hi RealFeel: 17°
      • UV: 4 - Moderate
      • Air Qual.: Good
      More
    • Sat

      Oct 1

      17° /9°C
      Cloudy
      • Beneficial
      • weather for asthma
      • Hi RealFeel: 16°
      • UV: 2 - Low
      • Air Qual.: Good
    • Sun

      Oct 2

      17° /9°
      Cloudy with a shower or two
      • Beneficial
      • weather for asthma
      • Hi RealFeel: 16°
      • UV: 2 - Low
      • Air Qual.: Good
      More
    • Mon

      Oct 3

      19° /8°
      Cloudy with a stray shower
      • Beneficial
      • weather for asthma
      • Hi RealFeel: 18°
      • UV: 2 - Low
      • Air Qual.: Good
      More
    • Tue

      Oct 4

      20° /10°
      Some sun, then turning cloudy
      • Beneficial
      • weather for asthma
      • Hi RealFeel: 19°
      • UV: 2 - Low
      • Air Qual.: Good
      More
    16°/11° RealFeel® 15°/9°
    Cloudy
    • 15 km/h
    • Precipitation: 10%
    • Rain: 0 mm
    • Snow: 0 CM
    • Humidity: 66%
    • Cloud Cover: 95%
    • Dew Point: 7° C
    • Visibility: 10 km

    Temperature History

    more Historical Weather Data >
      Today Normal Record 10/1/2015
    High 17° 16° 26° (2002) 15°
    Low -4° (1947)

    Sunrise/Sunset

    • Sunrise: 7:02 AM
    • Sunset: 6:42 PM
    • Duration: 11:40 hr

    Moonrise/Moonset

    • Moonrise: 7:29 AM
    • Moonset: 7:16 PM
    • Duration: 11:47 hr
    Astronomy

    Chelsea Weather Report

    Weekly update signals a mild October for a majority of Canada

    September 30, 2016; 12:09 PM ET

    Latest clues to the long range into October. More >