Observed at: Montréal-Trudeau Int'l Airport
Date: 11:00 PM EDT Monday 24 August 2026
Mostly Cloudy
Mostly Cloudy
Temp.: 19 °C
Wind: SW 11 km/h
Humidity: 78 %
Dew point: 15 °C
Pressure: 101.2 kPa
Tendency: 0.03 kPa
Visibility: 24 km
Sunrise: 6:06
Sunset: 19:47
Normals:
Max 24°C Min 13°C
 Extended Forecast - Environment Canada
  Tue, 25 Aug
Chance of showers (40%)
Chance of showers
Max: 23°C
Wed, 26 Aug
Sunny
Sunny
Max: 26°C
Thu, 27 Aug
Chance of showers (60%)
Chance of showers
Max: 26°C
Fri, 28 Aug
Cloudy
Cloudy
Max: 22°C
Sat, 29 Aug
Sunny
Sunny
Max: 23°C
Sun, 30 Aug
Chance of showers (60%)
Chance of showers
Max: 22°C
Tonight
Chance of showers (60%)
Chance of showers
Min: 16°C
Night
Chance of showers (40%)
Chance of showers
Min: 15°C
Night
Clear
Clear
Min: 17°C
Night
Showers
Showers
Min: 19°C
Night
Clear
Clear
Min: 11°C
Night
Clear
Clear
Min: 13°C

Forecast

Mont-Royal, QC (Issued: 3:45 PM EDT Monday 24 August 2026)

Tonight
Mainly cloudy with 60 percent chance of showers. Risk of a thunderstorm early this evening. Low 16.
Tue, 25 Aug
A mix of sun and cloud with 40 percent chance of showers. Wind becoming west 20 km/h near noon. High 23. Humidex 28. UV index 6 or high.
Night
Partly cloudy. 40 percent chance of showers early in the evening. Wind west 20 km/h becoming light in the evening. Low 15.
Wed, 26 Aug
Sunny. High 26.
Night
Clear. Low 17.
Thu, 27 Aug
A mix of sun and cloud with 60 percent chance of showers. High 26.
Night
Showers. Low 19.
Fri, 28 Aug
Cloudy. High 22.
Night
Clear. Low 11.
Sat, 29 Aug
Sunny. High 23.
Night
Clear. Low 13.
Sun, 30 Aug
A mix of sun and cloud with 60 percent chance of showers. High 22.

24 Hour Forecast - Mont-Royal, QC

Date/Time Temp.
(°C)

Weather Conditions

LOP †
Wind
(km/h)
25 August 2026
12 AM 17 Chance of showers (60%)  Chance of showers 60 SW 10
1 AM 16 Chance of showers (60%)  Chance of showers 60 SW 10
2 AM 16 Chance of showers (60%)  Chance of showers 60 SW 10
3 AM 16 Chance of showers (60%)  Chance of showers 60 SW 10
4 AM 16 Chance of showers (60%)  Chance of showers 60 SW 10
5 AM 16 Chance of showers (60%)  Chance of showers 60 SW 10
6 AM 17 Chance of showers (40%)  Chance of showers 40 W 15
7 AM 17 Chance of showers (40%)  Chance of showers 40 W 15
8 AM 18 Chance of showers (40%)  Chance of showers 40 W 15
9 AM 18 Chance of showers (40%)  Chance of showers 40 W 15
10 AM 19 Chance of showers (40%)  Chance of showers 40 W 15
11 AM 19 Chance of showers (40%)  Chance of showers 40 W 15
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 21 Chance of showers (40%)  Chance of showers 40 W 20
8 PM 20 Chance of showers (40%)  Chance of showers 40 W 20
9 PM 19 A few clouds (0%)  A few clouds 0 W 10
10 PM 19 A few clouds (0%)  A few clouds 0 W 10
11 PM 18 A few clouds (0%)  A few clouds 0 W 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