• Today

    Sep 18

    13°Lo 1°

    Clouds giving way to sun

    Excellent for driving
    • Precip
      1%
    • Hours of Precip
      0
    • Rain
      0 mm
  • Fri

    Sep 19

    14°Lo 8°

    Fog in the a.m.; lots of sun

    Very Good for driving
    • Precip
      0%
    • Hours of Precip
      0
    • Rain
      0 mm
    more
  • Sat

    Sep 20

    20°Lo 15°

    A couple of afternoon showers

    Very Good for driving
    • Precip
      60%
    • Hours of Precip
      1
    • Rain
      1 mm
    more
  • Sun

    Sep 21

    23°Lo 10°

    Rather cloudy, showers around

    Good for driving
    • Precip
      74%
    • Hours of Precip
      3.5
    • Rain
      8 mm
    more
  • Mon

    Sep 22

    15°Lo 6°

    Cooler with a shower possible

    Excellent for driving
    • Precip
      30%
    • Hours of Precip
      0
    • Rain
      0 mm
    more
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Forecast
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Clear
Mostly Clear
Temp (°C) 12° 13° 13° 13° 12° 11° 10°
RealFeel® 15° 15° 14° 12° 10°
Humidity 50% 48% 45% 48% 48% 49% 52% 53%
   
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  2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm
Wind (km/h) 8 NNW 8 NW 8 NW 10 NW 8 NNW 8 NNW 6 N 6 N
UV Index 4 3 2 1 0 0 0 0
Cloud Cover 11% 11% 11% 11% 11% 11% 10% 10%
Dew Point -1°
Middle Grid line 15 C Middle Grid line 10 C Middle Grid line 5 C

Temperature History - Sep 18

more Historical Weather Data >
  Today Normal Record 9/18/2013
High 13° 19° 30° (1942) 21°
Low (1943)

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:36 AM with 12:24 of sunlight, then sets at 7:00 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:14 AM with 14:45 of moolight, then sets at 3:59 PM

Top Story

Longueuil Weather Report

Long Winter Nights, Dry Air Increase Chance to View Aurora

September 18, 2014; 5:16 AM ET

Igniting across Northern skies, ghostly rivers of light dance overhead each year, emitting vibrant shades of green, blue, pink, red and violet. more >