• Today

    Sep 20

    26°Lo 17°

    Warmer; a shower in the p.m.

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      23°
    • UV
      4 - Moderate
    • Cloud
      Cover
      68%
  • Sun

    Sep 21

    22°Lo 8°

    A couple of thunderstorms

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      21°
    • UV
      4 - Moderate
    • Cloud
      Cover
      77%
    more
  • Mon

    Sep 22

    15°Lo 7°

    Partly sunny and cooler

    At Risk weather for sinus headaches
    • Hi
      RealFeel
      14°
    • UV
      4 - Moderate
    • Cloud
      Cover
      46%
    more
  • Tue

    Sep 23

    21°Lo 8°

    Warmer with a shower possible

    At Risk weather for sinus headaches
    • Hi
      RealFeel
      21°
    • UV
      4 - Moderate
    • Cloud
      Cover
      46%
    more
  • Wed

    Sep 24

    20°Lo 10°

    Sunshine

    At Risk weather for sinus headaches
    • Hi
      RealFeel
      21°
    • UV
      4 - Moderate
    • Cloud
      Cover
      9%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
8am
9am 10am 11am 12pm 1pm 2pm 3pm
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Forecast
Cloudy
Cloudy
Mostly Cloudy
Mostly Cloudy
Partly Sunny
Mostly Cloudy
Partly Sunny
Partly Sunny
Temp (°C) 16° 16° 19° 21° 23° 23° 24° 25°
RealFeel® 14° 14° 17° 19° 22° 21° 22° 23°
Humidity 87% 93% 78% 68% 61% 61% 53% 53%
   
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Rain
 
5%
 
5%
 
6%
 
7%
 
7%
 
11%
 
19%
 
19%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Wind (km/h) 11 S 11 S 21 SSW 27 SW 27 SSW 29 SSW 34 SW 32 SW
UV Index 0 0 2 3 4 4 4 3
Cloud Cover 100% 100% 85% 75% 48% 75% 45% 45%
Dew Point 14° 15° 15° 15° 15° 15° 14° 15°
Middle Grid line 30 C Middle Grid line 25 C Middle Grid line 20 C Middle Grid line 15 C

Temperature History - Sep 20

more Historical Weather Data >
  Today Normal Record 9/20/2013
High 26° N/A N/A 24°
Low 17° N/A N/A 16°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:02 AM with 12:17 of sunlight, then sets at 7:19 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:35 AM with 13:50 of moolight, then sets at 5:25 PM

Top Story

Markham Weather Report

Long Winter Nights, Dry Air Increase Chance to View Aurora

September 20, 2014; 1:40 AM ET

Igniting across Northern skies, ghostly rivers of light dance overhead each year, emitting vibrant shades of green, blue, pink, red and violet. more >