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    • Today

      Sep 27

      21° /7°C
      Sun and some clouds
      • Low
      • indoor dust & dander levels
      • Precip: 5%
      • Wind Speed: 11 k/h
      • Cloud Cover: 41%
    • Wed

      Sep 28

      20° /7°
      Partly sunny
      • Low
      • indoor dust & dander levels
      • Precip: 14%
      • Wind Speed: 19 k/h
      • Cloud Cover: 27%
      More
    • Thu

      Sep 29

      18° /7°
      Sun mixing with clouds
      • Low
      • indoor dust & dander levels
      • Precip: 4%
      • Wind Speed: 22 k/h
      • Cloud Cover: 35%
      More
    • Fri

      Sep 30

      17° /8°
      Partly sunny
      • Low
      • indoor dust & dander levels
      • Precip: 4%
      • Wind Speed: 20 k/h
      • Cloud Cover: 29%
      More
    • Sat

      Oct 1

      20° /10°
      Mostly cloudy
      • Low
      • indoor dust & dander levels
      • Precip: 6%
      • Wind Speed: 15 k/h
      • Cloud Cover: 92%
      More

    Day

    21°Hi RealFeel® 22° Precipitation 5%
    Sun and some clouds
    • SW 11 km/h
    • Gusts: 18 km/h
    • Max UV Index: 3 (Moderate)
    • Thunderstorms: 0%
    • Precipitation: 0 mm
    • Rain: 0 mm
    • Snow: 0 CM
    • Ice: 0 mm
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    Lo RealFeel® 4° Precipitation 9%
    Clear to partly cloudy
    • ENE 9 km/h
    • Gusts: 17 km/h
    • Max UV Index: N/A
    • Thunderstorms: 0%
    • Precipitation: 0 mm
    • Rain: 0 mm
    • Snow: 0 CM
    • Ice: 0 mm
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/27/2015
    High 21° 19° N/A 23°
    Low N/A

    Sunrise/Sunset

    • Sunrise: 6:48 AM
    • Sunset: 6:40 PM
    • Duration: 11:52 hr

    Moonrise/Moonset

    • Moonrise: 3:14 AM
    • Moonset: 5:14 PM
    • Duration: 14:00 hr
    Astronomy

    Longueuil Weather Report

    October to start out mild in the East

    September 27, 2016; 12:08 PM ET

    Some needed rainfall for southern Ontario this week. More >