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Observed at: Toronto Buttonville Municipal Airport
Date: Friday September 20, 2019 at 00:00 EDT
Temp.: 14.0 °C
Wind: N 5 km/h
Humidity: 92 %
Dew point: 12.7 °C
Pressure: 102.3 kPa
Tendency:
Sunrise: 07:01
Sunset: 19:20
Normals:
Max 19°C Min 9°C
Yesterday
  Max: °C
  Min: °C
  Rainfall: mm
 Extended Forecast - Environment Canada
  Friday
Mainly sunny
Mainly sunny
Max: 26°C
 Saturday
A mix of sun and cloud
A mix of sun and cloud
Max: 26°C
 Sunday
Chance of showers (60%)
Chance of showers
Max: 22°C
 Monday
A mix of sun and cloud
A mix of sun and cloud
Max: 20°C
 Tuesday
Sunny
Sunny
Max: 19°C
 Wednesday
A mix of sun and cloud
A mix of sun and cloud
Max: 19°C
Thursday night
Clear
Clear
Min: 14°C
 Friday night
A few clouds
A few clouds
Min: 16°C
 Saturday night
Chance of showers (30%)
Chance of showers
Min: 16°C
 Sunday night
Chance of showers (60%)
Chance of showers
Min: 13°C
 Monday night
Cloudy periods
Cloudy periods
Min: 8°C
 Tuesday night
Clear
Clear
Min: 9°C

Forecast

Markham, ON (Issued: Thursday September 19, 2019 at 20:27 EDT)

Tonight
Clear. Low 14.
Friday
Mainly sunny. High 26. Humidex 30. UV index 6 or high.
Friday night
A few clouds. Low 16.
Saturday
A mix of sun and cloud. High 26.
Saturday night
Cloudy periods with 30 percent chance of showers. Low 16.
Sunday
Cloudy with 60 percent chance of showers. High 22.
Sunday night
Cloudy with 60 percent chance of showers. Low 13.
Monday
A mix of sun and cloud. High 20.
Monday night
Cloudy periods. Low 8.
Tuesday
Sunny. High 19.
Tuesday night
Clear. Low 9.
Wednesday
A mix of sun and cloud. High 19.
Averages and extremes
Highest temperature(1986-2014)28.0 °C2002
Lowest temperature(1986-2014)1.6 °C1993
Average highn/a 
Average lown/a 
Averagen/a 
Greatest rainfall(1986-2014)39.2 mm2003
Greatest snowfall(1986-2014)0.0 cm1986
Greatest precipitation(1986-2014)39.2 mm2003
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)
Humidex
20 September 2019
01:00 16 Clear (0%)  Clear Nil VR 5 ‡
02:00 16 Clear (0%)  Clear Nil VR 5 ‡
03:00 15 Clear (0%)  Clear Nil VR 5 ‡
04:00 15 Clear (0%)  Clear Nil VR 5 ‡
05:00 14 Clear (0%)  Clear Nil VR 5 ‡
06:00 14 A few clouds (0%)  A few clouds Nil VR 5 ‡
07:00 15 Mainly sunny (0%)  Mainly sunny Nil VR 5 ‡
08:00 15 Mainly sunny (0%)  Mainly sunny Nil VR 5 ‡
09:00 17 Mainly sunny (0%)  Mainly sunny Nil S 10 ‡
10:00 20 Mainly sunny (0%)  Mainly sunny Nil S 10 ‡
11:00 22 Mainly sunny (0%)  Mainly sunny Nil S 10 26
12:00 23 Mainly sunny (10%)  Mainly sunny Low S 15 27
13:00 24 Mainly sunny (10%)  Mainly sunny Low S 15 28
14:00 25 Mainly sunny (10%)  Mainly sunny Low S 15 29
15:00 26 Mainly sunny (10%)  Mainly sunny Low S 15 30
16:00 26 Mainly sunny (10%)  Mainly sunny Low S 15 29
17:00 26 Mainly sunny (10%)  Mainly sunny Low S 15 30
18:00 25 Mainly sunny (0%)  Mainly sunny Nil SE 10 29
19:00 24 A few clouds (0%)  A few clouds Nil SE 10 28
20:00 23 A few clouds (0%)  A few clouds Nil SE 10 27
21:00 22 A few clouds (0%)  A few clouds Nil VR 5 26
22:00 20 A few clouds (0%)  A few clouds Nil VR 5 ‡
23:00 19 A few clouds (0%)  A few clouds Nil VR 5 ‡
21 September 2019
00:00 18 A few clouds (0%)  A few clouds Nil VR 5 ‡
 
† 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%
‡ Value not significant

Environment Canada