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Observed at: Montréal-Trudeau Int'l Airport
Date: 11:00 AM EDT Tuesday 25 August 2026
Mostly Cloudy
Mostly Cloudy 		Temp.: 20 °C
Wind: W 11 km/h
Humidity: 72 %
Dew point: 15 °C
Pressure: 101.4 kPa
Tendency: 0.06 kPa
Visibility: 24 km 		Sunrise: 6:07
Sunset: 19:46
Normals:
Max 23°C Min 13°C
 Extended Forecast - Environment Canada
Today
Chance of showers (40%)
Chance of showers
Max: 23°C
 Wed, 26 Aug
A mix of sun and cloud
A mix of sun and cloud
Max: 26°C
 Thu, 27 Aug
Chance of showers (60%)
Chance of showers
Max: 25°C
 Fri, 28 Aug
Chance of showers (60%)
Chance of showers
Max: 21°C
 Sat, 29 Aug
Sunny
Sunny
Max: 22°C
 Sun, 30 Aug
Chance of showers (30%)
Chance of showers
Max: 23°C
 Mon, 31 Aug
Chance of showers (60%)
Chance of showers
Max: 23°C
Tonight
Chance of showers (40%)
Chance of showers
Min: 16°C
 Night
Cloudy periods
Cloudy periods
Min: 18°C
 Night
Chance of showers (60%)
Chance of showers
Min: 18°C
 Night
Clear
Clear
Min: 11°C
 Night
Clear
Clear
Min: 13°C
 Night
Chance of showers (60%)
Chance of showers
Min: 16°C
  

Forecast

Mont-Royal, QC (Issued: 11:30 AM EDT Tuesday 25 August 2026)

Today
A mix of sun and cloud with 40 percent chance of showers. Wind west 20 km/h. High 23. Humidex 28. UV index 6 or high.
Tonight
Partly cloudy with 40 percent chance of showers early this evening. Clearing this evening. Wind west 20 km/h becoming light this evening. Low 16.
Wed, 26 Aug
A mix of sun and cloud. High 26. Humidex 30. UV index 7 or high.
Night
Cloudy periods. Low 18.
Thu, 27 Aug
Cloudy with 60 percent chance of showers. High 25.
Night
Cloudy with 60 percent chance of showers. Low 18.
Fri, 28 Aug
A mix of sun and cloud with 60 percent chance of showers. High 21.
Night
Clear. Low 11.
Sat, 29 Aug
Sunny. High 22.
Night
Clear. Low 13.
Sun, 30 Aug
A mix of sun and cloud with 30 percent chance of showers. High 23.
Night
Cloudy with 60 percent chance of showers. Low 16.
Mon, 31 Aug
Cloudy with 60 percent chance of showers. High 23.

24 Hour Forecast - Mont-Royal, QC

Date/Time Temp.
(°C)
Weather Conditions
LOP †		 Wind
(km/h)
25 August 2026
12 PM 20 Chance of showers (40%)  Chance of showers 40 W 20
1 PM 20 Chance of showers (40%)  Chance of showers 40 W 20
2 PM 21 Chance of showers (40%)  Chance of showers 40 W 20
3 PM 22 Chance of showers (40%)  Chance of showers 40 W 20
4 PM 22 Chance of showers (40%)  Chance of showers 40 W 20
5 PM 23 Chance of showers (40%)  Chance of showers 40 W 20
6 PM 22 Chance of showers (40%)  Chance of showers 40 W 20
7 PM 22 Chance of showers (40%)  Chance of showers 40 W 20
8 PM 21 Chance of showers (40%)  Chance of showers 40 W 20
9 PM 20 Clear (0%)  Clear 0 W 10
10 PM 20 Clear (0%)  Clear 0 W 10
11 PM 19 Clear (0%)  Clear 0 W 10
26 August 2026
12 AM 18 Clear (0%)  Clear 0 W 10
1 AM 18 Clear (0%)  Clear 0 W 10
2 AM 17 Clear (0%)  Clear 0 W 10
3 AM 17 A few clouds (0%)  A few clouds 0 SW 10
4 AM 16 A few clouds (0%)  A few clouds 0 SW 10
5 AM 16 A few clouds (0%)  A few clouds 0 SW 10
6 AM 17 A mix of sun and cloud (0%)  A mix of sun and cloud 0 SW 10
7 AM 17 A mix of sun and cloud (0%)  A mix of sun and cloud 0 SW 10
8 AM 18 A mix of sun and cloud (0%)  A mix of sun and cloud 0 SW 10
9 AM 19 A mix of sun and cloud (0%)  A mix of sun and cloud 0 SW 10
10 AM 21 A mix of sun and cloud (0%)  A mix of sun and cloud 0 SW 10
11 AM 22 A mix of sun and cloud (0%)  A mix of sun and cloud 0 SW 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