• Today

    May 18

    21°Lo 10°

    Mostly sunny and nice

    Beneficial weather for asthma
    • Hi
      RealFeel
      25°
    • UV
      7 - High
    • Air Qual.
      Good
  • Sun

    May 19

    23°Lo 12°

    Mostly cloudy

    Beneficial weather for asthma
    • Hi
      RealFeel
      23°
    • UV
      6 - High
    • Air Qual.
      Good
    more
  • Mon

    May 20

    25°Lo 13°

    A thunderstorm in the area

    Neutral weather for asthma
    • Hi
      RealFeel
      26°
    • UV
      6 - High
    • Air Qual.
      Good
    more
  • Tue

    May 21

    20°Lo 10°

    A couple of showers possible

    Beneficial weather for asthma
    • Hi
      RealFeel
      20°
    • UV
      4 - Moderate
    • Cloud
      Cover
      76%
    more
  • Wed

    May 22

    22°Lo 13°

    Rain and drizzle possible

    Beneficial weather for asthma
    • Hi
      RealFeel
      23°
    • UV
      5 - Moderate
    • Cloud
      Cover
      76%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Mostly Sunny
Mostly Sunny
Temp (°C) 14° 16° 18° 19° 20° 20° 21° 21°
RealFeel® 17° 20° 23° 24° 25° 25° 25° 24°
Humidity 67% 58% 49% 44% 41% 41% 38% 36%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
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0%
Ice
 
0%
 
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  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (km/h) 5 SE 5 SE 5 SSE 5 E 5 E 5 ESE 5 ESE 5 ESE
UV Index 3 4 6 7 7 7 6 4
Cloud Cover 0% 0% 0% 0% 0% 0% 13% 26%
Dew Point
Middle Grid line 25 C Middle Grid line 20 C Middle Grid line 15 C Middle Grid line 10 C

Temperature History - May 18

more Historical Weather Data >
  Today Normal Record 5/18/2012
High 21° 19° 32° (1962) 22°
Low 10° -1° (1944)

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:21 AM with 15:01 of sunlight, then sets at 8:22 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:04 PM with 12:56 of moolight, then sets at 2:00 AM

Top Story

Montreal Weather Report

The Summer Outlook for Canada

May 18, 2013; 9:44 AM ET

The Accuweather.com summer forecast for Canada. more >