MONTREAL/METEO/WEATHER

ALMANAC FOR TODAY SEP 12

Average Min Temperature: 11.7°C Average Max Temperature: 22.0°C Greatest Rainfall: 80.5 mm in 1963
Low Temp Record: 3.3°C in 1946 Hi Temp Record: 28.9°C in 1951 Greatest Snowfall: 0.0 cm in 1871
Most Snow on the Ground: 0 cm in 1955
Maximum low temp: 18.9°C in 1947Minimum high temp: 12.8°C in 1928Maximum wind gust: 77.0 km/h in 1963
Highest Humidex: 37°C in 2005

CURRENT HOT AND COLD SPOTS

  World (past 3 hours) Canada Quebec
Hot Spot Temperature 41°C at Bullhead City, AZ,United States 22.9°C at Harrow AAFC (ON) 20.4°C at Montréal-Trudeau Int'l Airport
Cold Spot Temperature -16°C at Base Marambio,Argentina -8.8°C at Isachsen (NU) 2.8°C at Kangiqsujuaq Airport
Wind Gust 117 km/h at Williams Field,Antarctica
Wind Chill -92.3 °C at Amundsen-Scott Stn,Antarctica
Heat Index 47.9 °C at Bahrain Intl Arpt,Bahrain

FORECAST FOR MONTREAL

Forecast - Environment Canada
 Provided by Montrealsky
  Sun, 13 Sep
A few showers
A few showers
Max: 23°C
Mon, 14 Sep
Sunny
Sunny
Max: 19°C
Tue, 15 Sep
Sunny
Sunny
Max: 20°C
Wed, 16 Sep
A mix of sun and cloud
A mix of sun and cloud
Max: 26°C
Thu, 17 Sep
Chance of showers (60%)
Chance of showers
Max: 20°C
Fri, 18 Sep
Chance of showers (30%)
Chance of showers
Max: 20°C
Tonight
Chance of showers (40%)
Chance of showers
Min: 18°C
Night
Chance of showers (30%)
Chance of showers
Min: 12°C
Night
Clear
Clear
Min: 9°C
Night
Cloudy periods
Cloudy periods
Min: 16°C
Night
Cloudy periods
Cloudy periods
Min: 12°C
Night
Chance of showers (60%)
Chance of showers
Min: 12°C

24 HOUR FORECAST FOR MONTREAL

24 Hour Forecast - Mont-Royal, QC

Date/Time Temp.
(°C)

Weather Conditions

LOP †
Wind
(km/h)
13 September 2026
12 AM 20 Partly cloudy (0%)  Partly cloudy 0 SW 15
1 AM 19 Mainly cloudy (0%)  Mainly cloudy 0 SW 15
2 AM 19 Chance of showers (40%)  Chance of showers 40 SW 15
3 AM 19 Chance of showers (40%)  Chance of showers 40 SW 15
4 AM 18 Chance of showers (40%)  Chance of showers 40 SW 15
5 AM 18 Chance of showers (40%)  Chance of showers 40 SW 15
6 AM 18 A few showers (80%)  A few showers 80 SW 15
7 AM 18 A few showers (80%)  A few showers 80 SW 15
8 AM 18 A few showers (80%)  A few showers 80 SW 15
9 AM 19 A few showers (80%)  A few showers 80 SW 15
10 AM 20 A few showers (80%)  A few showers 80 SW 15
11 AM 21 A few showers (80%)  A few showers 80 SW 15
12 PM 21 A few showers. Risk of thunderstorms (80%)  A few showers. Risk of thunderstorms 80 SW 20 gust 40
1 PM 22 A few showers. Risk of thunderstorms (80%)  A few showers. Risk of thunderstorms 80 SW 20 gust 40
2 PM 22 A few showers. Risk of thunderstorms (80%)  A few showers. Risk of thunderstorms 80 SW 20 gust 40
3 PM 22 A mix of sun and cloud (0%)  A mix of sun and cloud 0 SW 20 gust 40
4 PM 23 A mix of sun and cloud (0%)  A mix of sun and cloud 0 SW 20 gust 40
5 PM 23 A mix of sun and cloud (0%)  A mix of sun and cloud 0 SW 20 gust 40
6 PM 22 A mix of sun and cloud (0%)  A mix of sun and cloud 0 SW 20
7 PM 22 Partly cloudy (0%)  Partly cloudy 0 SW 20
8 PM 21 Partly cloudy (0%)  Partly cloudy 0 SW 20
9 PM 20 Chance of showers (30%)  Chance of showers 30 W 20
10 PM 20 Chance of showers (30%)  Chance of showers 30 W 20
11 PM 19 Chance of showers (30%)  Chance of showers 30 W 20
 
† 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%

Weatherunderground Weather Forecast from WeatherUnderground for Montreal/Pierre Elliott Trudeau.

Weather-Forecast from Weather-forecast for Montreal.

Visit MONTREAL WEST celinium.com

WEATHER CONDITONS local time 23:20 on 12 September 2026

Sky Conditions Temperature and Humidity
Mostly cloudy Temperature21.0 °C Falling Dew Point 14.9 °C
Windchill 21.0 °C Humidity 68%
Humidex 24.8 °C Cloud base 2509 ft
Rainfall
  Rainfall Today 0.0 mm Rainfall Rate 0.0 mm/hr
  Rainfall This Month 34.2 mm Rainfall This Year 566.8 mm
  Rainfall Last Hour 0.0 mm Last rainfall 2026-09-09 23:18
Wind
  Wind Speed (gust) 8.0 km/h Wind Speed (avg) 3.2 km/h
  Wind Bearing 155° SSE Beaufort F1 Light air
Pressure
  Barometer  1011.21 hPa Falling slowly -0.07 hPa/hr
:now::gauges::today::yesterday::records::trends::forum:::Contact:

Latitude N 45° 35' 13"    Longitude W 73° 35' 18"    Elevation 50 ft

Dawn: 05:59 Sunrise: 06:29 Moonrise: 08:11 Moon
Dusk: 19:41 Sunset:  19:11 Moonset: 19:28
Daylight: 13:42 Day length: 12:42 Moon Phase: Waxing Crescent


Page updated 9/12/2026 11:20:00 PM
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NOAA Monthly Report

                   Monthly Climatological Summary for Sep 2026

Name: MONTREAL@ST.LEONARD   City: MONTREAL   State: QUEBEC- CANADA
Elevation: 50 ft  Lat: N 45° 35' 13"   Lon: W 073° 35' 18"

                  Temperature (°C), Rain (mm), Wind Speed (km/h)

                                      Heat  Cool        Avg
    Mean                              Deg   Deg         Wind                 Dom
Day Temp  High   Time   Low    Time   Days  Days  Rain  Speed High   Time    Dir
----------------------------------------------------------------------------------
 1  20.2  25.1   16:27  15.6   05:28   0.5   2.4   0.0   4.9  25.7   13:24    NE
 2  20.0  24.3   14:00  14.2   06:27   0.7   2.4   7.0   7.7  41.8   15:57    SE
 3  22.7  28.0   15:21  18.7   02:20   0.0   4.4   0.2   5.0  40.2   00:34    SW
 4  21.1  24.7   11:50  18.6   05:04   0.0   2.8   0.2   1.6  16.1   10:46     W
 5  18.3  21.5   16:44  14.8   23:52   0.7   0.7   0.6   4.9  35.4   19:59    NE
 6  18.2  23.9   17:09  13.1   06:37   1.7   1.6   0.0   3.2  24.1   15:27   NNW
 7  20.8  26.7   14:08  14.2   06:20   1.0   3.5   0.0   3.9  24.1   12:32   WNW
 8  19.5  23.2   15:56  16.6   05:08   0.4   1.5   6.2   2.5  19.3   11:21   ENE
 9  18.0  21.2   15:45  14.3   07:13   1.3   1.0  20.0   4.0  30.6   22:36   SSE
10  19.9  22.8   14:00  14.5   23:49   0.4   2.0   0.0  12.0  51.5   13:25     W
11  15.2  20.0   17:26  10.8   06:34   3.2   0.2   0.0   5.8  30.6   13:32     W
----------------------------------------------------------------------------------
    19.4  28.0     3    10.8    11     9.9  22.5  34.2   5.0  51.5    10     WSW

Max >=  32.0:  0
Max <=   0.0:  0
Min <=   0.0:  0
Min <= -18.0:  0
Max Rain: 20.0 on day 9
Days of Rain: 6 (>= 0.1 mm)  3 (>= 5.0 mm)  1 (>= 20.0 mm)
Heat Base: 18.3  Cool Base: 18.3  Method: Integration

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