• Tonight

    May 18

    Lo 7°

    Some clouds

    Dust & Dander Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      7 - Low

  • Sun

    May 19

    24°Lo 17°

    Mostly cloudy

    Very High indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      7 - Low
    more

  • Mon

    May 20

    24°Lo 10°

    A thunderstorm in the area

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      7 - Low
    more

  • Tue

    May 21

    16°Lo 8°

    Mostly cloudy and cooler

    Extreme indoor dust & dander levels
    • Precip
      25%
    • Wind
      Speed
      11 k/h
    • Cloud
      Cover
      93%
    more

  • Wed

    May 22

    21°Lo 11°

    Rain and drizzle possible

    Extreme indoor dust & dander levels
    • Precip
      30%
    • Wind
      Speed
      8 k/h
    • Cloud
      Cover
      82%
    more
Next Previous
Partly cloudy 18° Lo 12° RealFeel® 17° / 12°

N

E

S

W

  • Precipitation: 0%
  • Rain: 0 mm
  • Snow: 0 CM
  • Humidity: 50%
  • Cloud Cover: 29%
  • Dew Point: 4° C
  • Visibility: 10 km
5 km/h

Temperature History - May 18

more Historical Weather Data >
  Today Normal Record 5/18/2012
High 22° 19° 32° (1962) 22°
Low 7° 8° -1° (1944) 8°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:20 AM with 15:01 of sunlight, then sets at 8:21 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:03 PM with 12:56 of moolight, then sets at 1:59 AM

Top Story

Longueuil Weather Report

The Summer Outlook for Canada

May 18, 2013; 9:44 AM ET

The Accuweather.com summer forecast for Canada. more >