Observed at: Toronto Buttonville Municipal Airport
Date: Wednesday May 23, 2018 at 02:00 EDT
Mostly Cloudy
Mostly Cloudy
Temp.: 13.0 °C
Wind: N 27 km/h
Humidity: 93 %
Dew point: 12.0 °C
Pressure: 101.5 kPa
Tendency: rising
Visibility: 24.1 km
Sunrise: 05:44
Sunset: 20:44
Normals:
Max 20°C Min 9°C
Yesterday
  Max: 17.9 °C
  Min: 10.6 °C
  Rainfall: 0.6 mm

 Extended Forecast - Environment Canada
  Wednesday
Sunny
Sunny
Max: 27°C
Thursday
Sunny
Sunny
Max: 27°C
Friday
A mix of sun and cloud
A mix of sun and cloud
Max: 28°C
Saturday
Chance of showers or thundershowers (60%)
Chance of showers or thundershowers
Max: 27°C
Sunday
Chance of showers or thundershowers (60%)
Chance of showers or thundershowers
Max: 25°C
Monday
Chance of showers (30%)
Chance of showers
Max: 24°C
Tuesday night
Chance of drizzle (30%)
Chance of drizzle
Min: 12°C
Wednesday night
Clear
Clear
Min: 12°C
Thursday night
Clear
Clear
Min: 8°C
Friday night
Cloudy periods
Cloudy periods
Min: 13°C
Saturday night
Chance of showers or thundershowers (60%)
Chance of showers or thundershowers
Min: 15°C
Sunday night
Chance of showers or thundershowers (60%)
Chance of showers or thundershowers
Min: 14°C

Forecast

Markham, ON (Issued: Tuesday May 22, 2018 at 17:34 EDT)

Tonight
Mainly cloudy. 30 percent chance of drizzle early this evening. Clearing after midnight. Low 12.
Wednesday
Sunny. Wind becoming northwest 20 km/h late in the morning. High 27. UV index 7 or high.
Wednesday night
Clear. Wind northwest 20 km/h becoming light in the evening. Low 12.
Thursday
Sunny. High 27.
Thursday night
Clear. Low 8.
Friday
A mix of sun and cloud. High 28.
Friday night
Cloudy periods. Low 13.
Saturday
A mix of sun and cloud with 60 percent chance of showers or thunderstorms. High 27.
Saturday night
Cloudy with 60 percent chance of showers or thunderstorms. Low 15.
Sunday
A mix of sun and cloud with 60 percent chance of showers or thunderstorms. High 25.
Sunday night
Cloudy periods with 60 percent chance of showers or thunderstorms. Low 14.
Monday
A mix of sun and cloud with 30 percent chance of showers. High 24.
Averages and extremes
Highest temperature(1986-2014)30.2 °C1991
Lowest temperature(1986-2014)3.0 °C1997
Average highn/a 
Average lown/a 
Averagen/a 
Greatest rainfall(1986-2014)17.0 mm2000
Greatest snowfall(1986-2014)0.0 cm1986
Greatest precipitation(1986-2014)17.0 mm2000
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
23 May 2018
03:00 13 Clear (0%)  Clear Nil N 10
04:00 13 Clear (0%)  Clear Nil N 10
05:00 12 Clear (0%)  Clear Nil VR 5
06:00 13 Sunny (0%)  Sunny Nil VR 5
07:00 14 Sunny (0%)  Sunny Nil VR 5
08:00 15 Sunny (0%)  Sunny Nil VR 5
09:00 17 Sunny (0%)  Sunny Nil VR 5
10:00 18 Sunny (0%)  Sunny Nil VR 5
11:00 20 Sunny (0%)  Sunny Nil NW 20
12:00 22 Sunny (0%)  Sunny Nil NW 20
13:00 24 Sunny (0%)  Sunny Nil NW 20 26
14:00 26 Sunny (0%)  Sunny Nil NW 20 27
15:00 26 Sunny (0%)  Sunny Nil NW 20 27
16:00 27 Sunny (0%)  Sunny Nil NW 20
17:00 27 Sunny (0%)  Sunny Nil NW 20
18:00 24 Sunny (0%)  Sunny Nil NW 20
19:00 21 Sunny (0%)  Sunny Nil NW 20
20:00 18 Sunny (0%)  Sunny Nil VR 5
21:00 18 Clear (0%)  Clear Nil VR 5
22:00 17 Clear (0%)  Clear Nil VR 5
23:00 17 Clear (0%)  Clear Nil VR 5
24 May 2018
00:00 16 Clear (0%)  Clear Nil VR 5
01:00 16 Clear (0%)  Clear Nil VR 5
02:00 15 Clear (0%)  Clear 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