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Observed at: Toronto Buttonville Municipal Airport
Date: Tuesday September 17, 2019 at 23:00 EDT
Temp.: 14.3 °C
Wind: NE 3 km/h
Humidity: 75 %
Dew point: 9.9 °C
Pressure: 102.3 kPa
Tendency:
Sunrise: 06:58
Sunset: 19:25
Normals:
Max 19°C Min 9°C
Yesterday
  Max: °C
  Min: °C
  Rainfall: mm
 Extended Forecast - Environment Canada
  Wednesday
Mainly sunny
Mainly sunny
Max: 22°C
 Thursday
Sunny
Sunny
Max: 24°C
 Friday
Sunny
Sunny
Max: 24°C
 Saturday
Sunny
Sunny
Max: 25°C
 Sunday
Chance of showers (60%)
Chance of showers
Max: 22°C
 Monday
Chance of showers (60%)
Chance of showers
Max: 21°C
Tuesday night
A few clouds
A few clouds
Min: 9°C
 Wednesday night
A few clouds
A few clouds
Min: 10°C
 Thursday night
Clear
Clear
Min: 10°C
 Friday night
Clear
Clear
Min: 12°C
 Saturday night
Clear
Clear
Min: 15°C
 Sunday night
Chance of showers (60%)
Chance of showers
Min: 14°C

Forecast

Markham, ON (Issued: Tuesday September 17, 2019 at 22:30 EDT)

Tonight
A few clouds. Low 9.
Wednesday
Mainly sunny. High 22. UV index 6 or high.
Wednesday night
A few clouds. Low 10.
Thursday
Sunny. High 24.
Thursday night
Clear. Low 10.
Friday
Sunny. High 24.
Friday night
Clear. Low 12.
Saturday
Sunny. High 25.
Saturday night
Clear. Low 15.
Sunday
Cloudy with 60 percent chance of showers. High 22.
Sunday night
Cloudy with 60 percent chance of showers. Low 14.
Monday
Cloudy with 60 percent chance of showers. High 21.
Averages and extremes
Highest temperature(1986-2014)26.8 °C2002
Lowest temperature(1986-2014)1.2 °C1986
Average highn/a 
Average lown/a 
Averagen/a 
Greatest rainfall(1986-2014)23.0 mm1987
Greatest snowfall(1986-2014)0.0 cm1986
Greatest precipitation(1986-2014)23.0 mm1987
Most snow on the ground(1986-2014)0.0 cm1986
Monthly frequency of precipitation36.0 % 

24 Hour Forecast - Markham, ON

Date/Time
(EDT)		 Temp.
(°C)
Weather Conditions
LOP †		 Wind
(km/h)
18 September 2019
00:00 13 A few clouds (0%)  A few clouds Nil VR 5
01:00 12 A few clouds (0%)  A few clouds Nil VR 5
02:00 12 A few clouds (0%)  A few clouds Nil VR 5
03:00 11 A few clouds (0%)  A few clouds Nil VR 5
04:00 10 A few clouds (0%)  A few clouds Nil VR 5
05:00 9 A few clouds (0%)  A few clouds Nil VR 5
06:00 10 A few clouds (0%)  A few clouds Nil VR 5
07:00 12 Mainly sunny (0%)  Mainly sunny Nil VR 5
08:00 13 Mainly sunny (0%)  Mainly sunny Nil VR 5
09:00 15 Mainly sunny (0%)  Mainly sunny Nil VR 5
10:00 16 Mainly sunny (0%)  Mainly sunny Nil VR 5
11:00 18 Mainly sunny (0%)  Mainly sunny Nil SE 15
12:00 19 A mix of sun and cloud (0%)  A mix of sun and cloud Nil SE 15
13:00 20 A mix of sun and cloud (0%)  A mix of sun and cloud Nil SE 15
14:00 21 A mix of sun and cloud (0%)  A mix of sun and cloud Nil SE 15
15:00 21 A mix of sun and cloud (0%)  A mix of sun and cloud Nil SE 15
16:00 22 A mix of sun and cloud (0%)  A mix of sun and cloud Nil SE 15
17:00 22 A mix of sun and cloud (0%)  A mix of sun and cloud Nil SE 15
18:00 20 Mainly sunny (0%)  Mainly sunny Nil SE 15
19:00 18 A few clouds (0%)  A few clouds Nil SE 15
20:00 16 A few clouds (0%)  A few clouds Nil E 10
21:00 16 A few clouds (0%)  A few clouds Nil E 10
22:00 15 A few clouds (0%)  A few clouds Nil E 10
23:00 15 A few clouds (0%)  A few clouds Nil E 10
 
† Likelihood of Precipitation (LOP) as described in the public forecast as a chance of measurable precipitation for a period of time.
  Nil: 0%
  Low: 40% or below
  Medium: 60% or 70%
  High: Above 70%

Environment Canada