• Tonight

    Sep 18

    Lo 1°

    Mainly clear; fog late

    Sinus Headache Weather
    • Hi
      RealFeel
      14°
    • UV
      4 - Moderate
    • Cloud
      Cover
      72%
    more
  • Fri

    Sep 19

    13°Lo 7°

    Fog in the a.m.; lots of sun

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      16°
    • UV
      4 - Moderate
    • Cloud
      Cover
      13%
    more
  • Sat

    Sep 20

    20°Lo 14°

    A few afternoon showers

    At Risk weather for sinus headaches
    • Hi
      RealFeel
      17°
    • UV
      3 - Moderate
    • Cloud
      Cover
      60%
  • Sun

    Sep 21

    20°Lo 7°

    Rather cloudy with showers

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      19°
    • UV
      3 - Moderate
    • Cloud
      Cover
      87%
    more
  • Mon

    Sep 22

    13°Lo 5°

    Cooler

    At Risk weather for sinus headaches
    • Hi
      RealFeel
      13°
    • UV
      4 - Moderate
    • Cloud
      Cover
      50%
    more
Next Previous
A couple of showers 20° Lo 18° RealFeel® 17° / 15°

N

E

S

W

  • Precipitation: 60%
  • Rain: 1 mm
  • Snow: 0 CM
  • Humidity: 72%
  • Cloud Cover: 76%
  • Dew Point: 14° C
  • Visibility: 9 km
22 km/h

Temperature History - Sep 20

more Historical Weather Data >
  Today Normal Record 9/20/2013
High 20° 18° 31° (1983) 26°
Low 14° (1979) 13°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:38 AM with 12:18 of sunlight, then sets at 6:56 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:07 AM with 13:57 of moolight, then sets at 5:04 PM

Top Story

Longueuil Weather Report

Cold Snap, Widespread Frost Looms for Northeast

September 18, 2014; 9:00 PM ET

The chilliest air of the season so far will settle over much of the Northeast into Friday and will bring frost to a large area. more >