• Today

    May 18

    20°Lo 12°

    Variable cloudiness

    Excellent for outdoor DIY projects
    • Precip
      12%
    • Hours of Precip
      0
    • Hi
      RealFeel
      22°
  • Sun

    May 19

    23°Lo 12°

    Times of clouds and sun

    Excellent for outdoor DIY projects
    • Precip
      19%
    • Hours of Precip
      0
    • Hi
      RealFeel
      24°
    more
  • Mon

    May 20

    27°Lo 15°

    Pleasant and warmer

    Excellent for outdoor DIY projects
    • Precip
      3%
    • Hours of Precip
      0
    • Hi
      RealFeel
      29°
    more
  • Tue

    May 21

    26°Lo 14°

    Rain and a thunderstorm

    Poor for outdoor DIY projects
    • Precip
      65%
    • Hours of Precip
      6
    • Hi
      RealFeel
      29°
    more
  • Wed

    May 22

    24°Lo 15°

    A couple of thunderstorms

    Poor for outdoor DIY projects
    • Precip
      60%
    • Hours of Precip
      3
    • Hi
      RealFeel
      26°
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
3pm
4pm 5pm 6pm 7pm 8pm 9pm 10pm
  3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm
Forecast
Partly Sunny
Partly Sunny
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Mostly Cloudy
Mostly Cloudy
Temp (°C) 20° 20° 19° 18° 18° 16° 15° 15°
RealFeel® 21° 20° 18° 17° 15° 13° 12° 12°
Humidity 35% 37% 43% 47% 49% 55% 60% 60%
   
  3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm
Rain
 
0%
 
0%
 
0%
 
0%
 
1%
 
2%
 
2%
 
2%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm
Wind (km/h) 19 ENE 19 ENE 18 ENE 16 ENE 16 ENE 14 ENE 13 ENE 13 ENE
UV Index 6 4 3 1 0 0 0 0
Cloud Cover 44% 47% 53% 58% 64% 69% 76% 76%
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 20° N/A N/A 19°
Low 12° N/A N/A

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:49 AM with 14:50 of sunlight, then sets at 8:39 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:28 PM with 12:54 of moolight, then sets at 2:22 AM

Top Story

Markham Weather Report

The Summer Outlook for Canada

May 18, 2013; 9:44 AM ET

The Accuweather.com summer forecast for Canada. more >