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  • Tonight

    May 22

    Clear and cold Lo 1°
    more
  • Sat

    May 23

    Mostly sunny and warmer 18°Lo 8°
  • Sun

    May 24

    Partial sunshine 22°Lo 13°
    more
  • Mon

    May 25

    Mostly cloudy with a t-storm 22°Lo 16°
    more
  • Tue

    May 26

    Rain and a t-storm; warmer 25°Lo 16°
    more
< Previous 8 hours Next 8 hours >
  Sat
5pm
6pm 7pm 8pm 9pm 10pm 11pm Sun
12am
  5pm 6pm 7pm 8pm 9pm 10pm 11pm 12am
Forecast
Mostly Sunny
Mostly Sunny
Mostly Sunny
Partly Sunny
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Temp (°C) 16° 18° 16° 15° 14° 13° 12° 11°
RealFeel® 15° 17° 14° 13° 12° 11°
Humidity 49% 44% 47% 47% 50% 53% 56% 58%
   
  5pm 6pm 7pm 8pm 9pm 10pm 11pm 12am
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
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0%
   
  5pm 6pm 7pm 8pm 9pm 10pm 11pm 12am
Wind (km/h) 20 WSW 20 WSW 18 WSW 17 WSW 17 WSW 15 SW 15 SW 15 SW
UV Index 3 2 1 0 0 0 0 0
Cloud Cover 11% 11% 11% 45% 45% 45% 45% 45%
Dew Point
Middle Grid line 20 C Middle Grid line 15 C Middle Grid line 10 C

Temperature History - May 23

more Historical Weather Data >
  Today Normal Record 5/23/2014
High 18° 19° 31° (1936) 18°
Low (1845)

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:45 AM with 15:00 of sunlight, then sets at 8:45 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:01 AM with 14:07 of moolight, then sets at 1:08 AM

Thornhill Weather Report

Canada Summer Outlook 2015

May 22, 2015; 3:17 PM ET

The upcoming summer will be very warm across a majority of southern Canada with reduced rainfall. more >