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Observed at: Toronto Buttonville Municipal Airport
Date: Saturday May 25, 2019 at 02:00 EDT
Temp.: 13.0 °C
Wind: ESE 3 km/h
Humidity: 83 %
Dew point: 10.3 °C
Pressure: 101.9 kPa
Tendency:
Sunrise: 05:43
Sunset: 20:46
Normals:
Max 20°C Min 9°C
Yesterday
  Max: °C
  Min: °C
  Rainfall: mm
 Extended Forecast - Environment Canada
  Saturday
Chance of showers (60%)
Chance of showers
Max: 21°C
 Sunday
Sunny
Sunny
Max: 22°C
 Monday
Sunny
Sunny
Max: 20°C
 Tuesday
Chance of showers (60%)
Chance of showers
Max: 21°C
 Wednesday
Chance of showers (60%)
Chance of showers
Max: 20°C
 Thursday
A mix of sun and cloud
A mix of sun and cloud
Max: 19°C
Friday night
Mainly cloudy
Mainly cloudy
Min: 11°C
 Saturday night
Chance of showers (60%)
Chance of showers
Min: 15°C
 Sunday night
Clear
Clear
Min: 12°C
 Monday night
Showers
Showers
Min: 13°C
 Tuesday night
Chance of showers (60%)
Chance of showers
Min: 14°C
 Wednesday night
Chance of showers (60%)
Chance of showers
Min: 12°C

Forecast

Markham, ON (Issued: Friday May 24, 2019 at 22:05 EDT)

Tonight
Mainly cloudy. Low 11.
Saturday
Cloudy. 60 percent chance of showers in the morning and early in the afternoon with risk of a thunderstorm. Wind becoming south 30 km/h in the afternoon. High 21. Humidex 26. UV index 5 or moderate.
Saturday night
Cloudy. 60 percent chance of showers early in the evening with risk of a thunderstorm. Clearing after midnight. Wind south 30 km/h becoming light in the evening. Low 15.
Sunday
Sunny. High 22.
Sunday night
Clear. Low 12.
Monday
Sunny. High 20.
Monday night
Showers. Low 13.
Tuesday
Cloudy with 60 percent chance of showers. High 21.
Tuesday night
Cloudy with 60 percent chance of showers. Low 14.
Wednesday
Cloudy with 60 percent chance of showers. High 20.
Wednesday night
Cloudy with 60 percent chance of showers. Low 12.
Thursday
A mix of sun and cloud. High 19.
Averages and extremes
Highest temperature(1986-2014)31.0 °C2012
Lowest temperature(1986-2014)0.9 °C2002
Average highn/a 
Average lown/a 
Averagen/a 
Greatest rainfall(1986-2014)12.2 mm1999
Greatest snowfall(1986-2014)0.0 cm1986
Greatest precipitation(1986-2014)12.2 mm1999
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
25 May 2019
03:00 11 Mainly cloudy (0%)  Mainly cloudy Nil VR 5 ‡
04:00 11 Mainly cloudy (0%)  Mainly cloudy Nil VR 5 ‡
05:00 11 Mainly cloudy (0%)  Mainly cloudy Nil VR 5 ‡
06:00 11 Mainly cloudy (0%)  Mainly cloudy Nil VR 5 ‡
07:00 12 Cloudy (0%)  Cloudy Nil VR 5 ‡
08:00 12 Chance of showers. Risk of thunderstorms (60%)  Chance of showers. Risk of thunderstorms Medium E 15 ‡
09:00 12 Chance of showers. Risk of thunderstorms (60%)  Chance of showers. Risk of thunderstorms Medium E 15 ‡
10:00 13 Chance of showers. Risk of thunderstorms (60%)  Chance of showers. Risk of thunderstorms Medium E 15 ‡
11:00 13 Chance of showers. Risk of thunderstorms (60%)  Chance of showers. Risk of thunderstorms Medium E 15 ‡
12:00 14 Chance of showers. Risk of thunderstorms (60%)  Chance of showers. Risk of thunderstorms Medium E 15 ‡
13:00 15 Chance of showers. Risk of thunderstorms (60%)  Chance of showers. Risk of thunderstorms Medium E 15 ‡
14:00 16 Cloudy (20%)  Cloudy Low S 30 ‡
15:00 17 Cloudy (20%)  Cloudy Low S 30 ‡
16:00 19 Cloudy (20%)  Cloudy Low S 30 ‡
17:00 20 Cloudy (20%)  Cloudy Low S 30 25
18:00 20 Chance of showers. Risk of thunderstorms (60%)  Chance of showers. Risk of thunderstorms Medium S 30 25
19:00 21 Chance of showers. Risk of thunderstorms (60%)  Chance of showers. Risk of thunderstorms Medium S 30 26
20:00 21 Chance of showers. Risk of thunderstorms (60%)  Chance of showers. Risk of thunderstorms Medium W 10 26
21:00 20 Cloudy (20%)  Cloudy Low W 10 25
22:00 19 Cloudy (20%)  Cloudy Low W 10 ‡
23:00 18 Mainly cloudy (0%)  Mainly cloudy Nil W 10 ‡
26 May 2019
00:00 17 Partly cloudy (0%)  Partly cloudy Nil W 10 ‡
01:00 17 Partly cloudy (0%)  Partly cloudy Nil W 10 ‡
02:00 16 A few clouds (0%)  A few clouds Nil W 15 ‡
 
† 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