• Early AM

    Sep 18

    Lo 7°

    Occasional rain and drizzle

    Dust & Dander Weather
    • Precip
      57%
    • Wind
      Speed
      10 k/h
    • Cloud
      Cover
      89%
    more
  • Today

    Sep 18

    13°Lo 1°

    Clouds giving way to sun

    Moderate indoor dust & dander levels
    • Precip
      1%
    • Wind
      Speed
      10 k/h
    • Cloud
      Cover
      60%
    more
  • Fri

    Sep 19

    14°Lo 8°

    Fog in the a.m.; lots of sun

    Moderate indoor dust & dander levels
    • Precip
      0%
    • Wind
      Speed
      5 k/h
    • Cloud
      Cover
      20%
    more
  • Sat

    Sep 20

    20°Lo 15°

    Showers around in the p.m.

    Moderate indoor dust & dander levels
    • Precip
      60%
    • Wind
      Speed
      13 k/h
    • Cloud
      Cover
      93%
    more
  • Sun

    Sep 21

    22°Lo 9°

    Rather cloudy with a shower

    Low indoor dust & dander levels
    • Precip
      55%
    • Wind
      Speed
      13 k/h
    • Cloud
      Cover
      79%
Next Previous
Hi 22° RealFeel® 23° Precipitation 55%

Day

N

E

S

W

  • SSW 13 km/h
  • Gusts: 27 km/h

Mostly cloudy with a passing shower

  • Max UV Index: 3 (Moderate)
  • Thunderstorms: 29%
  • Precipitation: 1 mm
  • Rain: 1 mm
  • Snow: 0 CM
  • Ice: 0 mm
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs
Lo 9° RealFeel® 6° Precipitation 55%

Night

N

E

S

W

  • WSW 11 km/h
  • Gusts: 29 km/h

A shower in the evening; otherwise, clearing

  • Max UV Index: N/A
  • Thunderstorms: 29%
  • Precipitation: 1 mm
  • Rain: 1 mm
  • Snow: 0 CM
  • Ice: 0 mm
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs

Temperature History - Sep 21

more Historical Weather Data >
  Today Normal Record 9/21/2013
High 22° 18° 28° (1965) 21°
Low (1973) 16°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:39 AM with 12:15 of sunlight, then sets at 6:54 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:05 AM with 13:28 of moolight, then sets at 5:33 PM

Top Story

Longueuil Weather Report

Long Winter Nights, Dry Air Increase Chance to View Aurora

September 17, 2014; 11:06 PM ET

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