SPECIAL WEATHER STATEMENT IN EFFECT

Observed at: Toronto Buttonville Municipal Airport
Date: Sunday May 27, 2018 at 22:00 EDT
Mainly Clear
Mainly Clear
Temp.: 18.5 °C
Wind: ESE 8 km/h
Humidity: 88 %
Dew point: 16.5 °C
Pressure: 101.3 kPa
Tendency:
Visibility: 24.1 km
Sunrise: 05:41
Sunset: 20:48
Normals:
Max 21°C Min 9°C
Yesterday
  Max: 28.2 °C
  Min: 16.0 °C
  Rainfall: 3.0 mm

 Extended Forecast - Environment Canada
  Monday
Mainly sunny
Mainly sunny
Max: 31°C
Tuesday
Sunny
Sunny
Max: 25°C
Wednesday
A mix of sun and cloud
A mix of sun and cloud
Max: 28°C
Thursday
Chance of showers (40%)
Chance of showers
Max: 22°C
Friday
Chance of showers (40%)
Chance of showers
Max: 24°C
Saturday
A mix of sun and cloud
A mix of sun and cloud
Max: 24°C
Sunday night
Chance of showers (30%)
Chance of showers
Min: 15°C
Monday night
Clear
Clear
Min: 19°C
Tuesday night
Clear
Clear
Min: 14°C
Wednesday night
Chance of showers (30%)
Chance of showers
Min: 15°C
Thursday night
Chance of showers (40%)
Chance of showers
Min: 17°C
Friday night
Cloudy periods
Cloudy periods
Min: 15°C

Forecast

Markham, ON (Issued: Sunday May 27, 2018 at 15:42 EDT)

Tonight
Partly cloudy. 30 percent chance of showers early this evening with risk of a thunderstorm. Fog patches developing overnight. Low 15.
Monday
Sunny. Becoming a mix of sun and cloud in the afternoon. Fog patches dissipating early in the morning. High 31. Humidex 36. UV index 9 or very high.
Monday night
Clearing late in the evening. Low 19.
Tuesday
Sunny. High 25.
Tuesday night
Clear. Low 14.
Wednesday
A mix of sun and cloud. High 28.
Wednesday night
Cloudy periods with 30 percent chance of showers. Low 15.
Thursday
A mix of sun and cloud with 40 percent chance of showers. High 22.
Thursday night
Cloudy periods with 40 percent chance of showers. Low 17.
Friday
A mix of sun and cloud with 40 percent chance of showers. High 24.
Friday night
Cloudy periods. Low 15.
Saturday
A mix of sun and cloud. High 24.
Averages and extremes
Highest temperature(1986-2014)31.5 °C2010
Lowest temperature(1986-2014)1.5 °C1994
Average highn/a 
Average lown/a 
Averagen/a 
Greatest rainfall(1986-2014)38.4 mm2009
Greatest snowfall(1986-2014)0.0 cm1986
Greatest precipitation(1986-2014)38.4 mm2009
Most snow on the ground(1986-2014)0.0 cm1986
Monthly frequency of precipitation39.0 % 

24 Hour Forecast - Markham, ON

Date/Time
(EDT)
Temp.
(°C)

Weather Conditions

LOP †
Wind
(km/h)

Humidex
28 May 2018
00:00 20 A few clouds (0%)  A few clouds Nil VR 5 25
01:00 19 A few clouds (0%)  A few clouds Nil VR 5
02:00 18 A few clouds (0%)  A few clouds Nil VR 5
03:00 17 A few clouds (0%)  A few clouds Nil VR 5
04:00 16 A few clouds (0%)  A few clouds Nil VR 5
05:00 15 Clear (0%)  Clear Nil VR 5
06:00 17 Sunny (0%)  Sunny Nil VR 5
07:00 19 Sunny (0%)  Sunny Nil VR 5
08:00 21 Sunny (0%)  Sunny Nil NW 10 26
09:00 22 Sunny (0%)  Sunny Nil NW 10 27
10:00 23 Sunny (0%)  Sunny Nil NW 10 27
11:00 24 Sunny (0%)  Sunny Nil NW 10 28
12:00 26 Sunny (0%)  Sunny Nil NW 10 30
13:00 27 Sunny (0%)  Sunny Nil NW 10 32
14:00 29 A mix of sun and cloud (20%)  A mix of sun and cloud Low NW 10 34
15:00 30 A mix of sun and cloud (20%)  A mix of sun and cloud Low NW 10 35
16:00 30 A mix of sun and cloud (20%)  A mix of sun and cloud Low NW 10 35
17:00 31 A mix of sun and cloud (20%)  A mix of sun and cloud Low NW 10 36
18:00 30 A mix of sun and cloud (10%)  A mix of sun and cloud Low NW 10 35
19:00 29 A mix of sun and cloud (10%)  A mix of sun and cloud Low NW 10 34
20:00 28 A mix of sun and cloud (0%)  A mix of sun and cloud Nil N 10 33
21:00 26 Clear (0%)  Clear Nil N 10 31
22:00 25 Clear (0%)  Clear Nil N 10 29
23:00 23 Clear (0%)  Clear Nil N 10 27
 
† 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