• Tonight

    May 20

    Lo 16°

    Mainly cloudy with a t-storm

    Dust & Dander Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more

  • Tue

    May 21

    25°Lo 15°

    Rain and a thunderstorm

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more

  • Wed

    May 22

    25°Lo 13°

    A couple of thunderstorms

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High

  • Thu

    May 23

    19°Lo 6°

    A couple of thunderstorms

    Extreme indoor dust & dander levels
    • Precip
      60%
    • Wind
      Speed
      13 k/h
    • Cloud
      Cover
      76%
    more

  • Fri

    May 24

    17°Lo 6°

    Breezy with some sun

    Extreme indoor dust & dander levels
    • Precip
      0%
    • Wind
      Speed
      19 k/h
    • Cloud
      Cover
      45%
    more
Next Previous
Hi 25° RealFeel® 27° Precipitation 60%

Day

N

E

S

W

  • SW 13 km/h
  • Gusts: 31 km/h

Mostly cloudy with a couple of showers and a thunderstorm

  • Max UV Index: 6 (High)
  • Thunderstorms: 40%
  • Precipitation: 6 mm
  • Rain: 6 mm
  • Snow: 0 CM
  • Ice: 0 mm
  • Hours of Precipitation: 3 hrs
  • Hours of Rain: 3 hrs
Lo 13° RealFeel® 12° Precipitation 56%

Night

N

E

S

W

  • WNW 10 km/h
  • Gusts: 32 km/h

Overcast with a little rain

  • Max UV Index: N/A
  • Thunderstorms: 20%
  • Precipitation: 1 mm
  • Rain: 1 mm
  • Snow: 0 CM
  • Ice: 0 mm
  • Hours of Precipitation: 2 hrs
  • Hours of Rain: 2 hrs

Temperature History - May 22

more Historical Weather Data >
  Today Normal Record 5/22/2012
High 25° N/A N/A 23°
Low 13° N/A N/A 15°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:45 AM with 14:58 of sunlight, then sets at 8:43 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:59 PM with 10:32 of moolight, then sets at 4:31 AM

Top Story

Markham Weather Report

The Summer Outlook for Canada

May 20, 2013; 2:44 PM ET

The Accuweather.com summer forecast for Canada. more >