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    • Early AM

      Oct 1

      Lo
      Cloudy
      • Sinus Headache
      • Weather
      • Hi RealFeel: 19°
      • UV: 4 - Moderate
      • Cloud Cover: 93%
      More
    • Today

      Oct 1

      17° /10°C
      Cloudy
      • Neutral
      • weather for sinus headaches
      • Hi RealFeel: 18°
      • UV: 2 - Low
      • Cloud Cover: 100%
    • Sun

      Oct 2

      17° /10°
      Cloudy with a shower or two
      • At Risk
      • weather for sinus headaches
      • Hi RealFeel: 16°
      • UV: 2 - Low
      • Cloud Cover: 99%
      More
    • Mon

      Oct 3

      18° /8°
      Cloudy with a shower
      • Neutral
      • weather for sinus headaches
      • Hi RealFeel: 17°
      • UV: 2 - Low
      • Cloud Cover: 69%
      More
    • Tue

      Oct 4

      20° /7°
      Mostly sunny and nice
      • Neutral
      • weather for sinus headaches
      • Hi RealFeel: 20°
      • UV: 4 - Moderate
      • Cloud Cover: 2%
      More
    Saturday
    10am
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    5pm
    Forecast Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
    Temp (°C) 14° 15° 16° 17° 17° 16° 16° 16°
    RealFeel® 14° 15° 16° 18° 17° 16° 15° 14°
    Wind (km/h) 9 NE 11 NE 13 NE 13 ENE 11 ENE 13 ENE 15 NE 15 NE
    precip
    10am
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    5pm
    Rain
    0%
    0%
    0%
    0%
    2%
    2%
    3%
    5%
    Snow
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Ice
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    SKY
    10am
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    5pm
    UV Index 1 1 2 2 1 1 1 0
    Cloud Cover 99% 99% 99% 99% 99% 99% 99% 100%
    Humidity 63% 59% 55% 49% 50% 53% 55% 60%
    Dew Point
    Temp °C
    10am
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    5pm
    20° 15° 10°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 10/1/2015
    High 17° 18° N/A 14°
    Low 10° N/A

    Sunrise/Sunset

    • Sunrise: 6:53 AM
    • Sunset: 6:33 PM
    • Duration: 11:40 hr

    Moonrise/Moonset

    • Moonrise: 7:19 AM
    • Moonset: 7:07 PM
    • Duration: 11:48 hr
    Astronomy

    Longueuil 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 >