• Early AM

    Dec 20

    Lo -14°

    Clear

    Sinus Headache Weather
    • Hi
      RealFeel
      -5°
    • UV
      1 - Low
    • Cloud
      Cover
      11%
    more
  • Today

    Dec 20

    -7°Lo -14°

    Patchy freezing fog, then sun

    At Risk weather for sinus headaches
    • Hi
      RealFeel
      -6°
    • UV
      1 - Low
    • Cloud
      Cover
      37%
  • Sun

    Dec 21

    -7°Lo -10°

    Freezing fog in the morning

    At Risk weather for sinus headaches
    • Hi
      RealFeel
      -4°
    • UV
      1 - Low
    • Cloud
      Cover
      73%
    more
  • Mon

    Dec 22

    -5°Lo -8°

    Some sun, then clouds

    At Risk weather for sinus headaches
    • Hi
      RealFeel
      -7°
    • UV
      1 - Low
    • Cloud
      Cover
      53%
    more
  • Tue

    Dec 23

    1°Lo -1°

    A wintry mix possible

    At Risk weather for sinus headaches
    • Hi
      RealFeel
      -3°
    • UV
      1 - Low
    • Cloud
      Cover
      85%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
1am
2am 3am 4am 5am 6am 7am 8am
  1am 2am 3am 4am 5am 6am 7am 8am
Forecast
Mostly Clear
Mostly Clear
Mostly Clear
Clear
Clear
Clear
Fog
Fog
Temp (°C) -14° -12° -12° -12° -12° -12° -12° -12°
RealFeel® -15° -12° -12° -12° -12° -11° -11° -12°
Humidity 100% 87% 85% 85% 87% 89% 94% 94%
   
  1am 2am 3am 4am 5am 6am 7am 8am
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  1am 2am 3am 4am 5am 6am 7am 8am
Wind (km/h) 7 W 6 WNW 6 WNW 6 NW 6 NNW 6 N 6 NNE 6 NNE
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 21% 16% 11% 6% 1% 0% 50% 50%
Dew Point -14° -14° -14° -14° -13° -13° -13° -13°
Middle Grid line -5 C Middle Grid line -10 C

Temperature History - Dec 20

more Historical Weather Data >
  Today Normal Record 12/20/2013
High -7° -3° 15° (1957) -1°
Low -14° -11° -32° (1942) -9°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:30 AM with 8:43 of sunlight, then sets at 4:13 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:39 AM with 9:47 of moolight, then sets at 3:26 PM

Longueuil Weather Report

Long-Range Forecast Model Update Into Mid-January

December 19, 2014; 9:08 AM ET

Update on the long-range forecast model data. more >