MONTREAL/METEO/WEATHER

ALMANAC FOR TODAY MAY 18

Average Min Temperature: 8.4°C Average Max Temperature: 19.7°C Greatest Rainfall: 43.4 mm in 1969
Low Temp Record: -0.6°C in 1944 Hi Temp Record: 32.2°C in 1962 Greatest Snowfall: 0.0 cm in 1872
Most Snow on the Ground: 0 cm in 1955
Maximum low temp: 21.1°C in 1889Minimum high temp: 8.3°C in 1916Maximum wind gust: 67.0 km/h in 2017
Highest Humidex: 38°C in 1962

CURRENT HOT AND COLD SPOTS

  World (past 3 hours) Canada Quebec
Hot Spot Temperature 38°C at Tindal / Katherine,Australia 25.0°C at Toronto Downtown (ON) 20.8°C at Frelighsburg
Cold Spot Temperature -30.6°C at Williams Field,Antarctica -16.9°C at Sanirajak (Hall Beach Airport) (NU) -6.8°C at Pingualuit (Parc national)
Wind Gust 119 km/h at Mount Pleasant Airport,United Kingdom
Wind Chill -77.0 °C at Amundsen-Scott Stn,Antarctica
Heat Index 55.2 °C at Tindal / Katherine,Australia

FORECAST FOR MONTREAL

Forecast - Environment Canada
 Provided by Montrealsky
Tonight
Chance of showers (40%)
Chance of showers
Min: 20°C
Night
Chance of showers (40%)
Chance of showers
Min: 18°C
Night
Clear
Clear
Min: 5°C
Night
Clear
Clear
Min: 7°C
Night
Clear
Clear
Min: 10°C
Night
Chance of showers (60%)
Chance of showers
Min: 11°C
 
Tue, 19 May
Chance of showers (60%)
Chance of showers
Max: 30°C
Wed, 20 May
A mix of sun and cloud
A mix of sun and cloud
Max: 23°C
Thu, 21 May
Sunny
Sunny
Max: 16°C
Fri, 22 May
Sunny
Sunny
Max: 21°C
Sat, 23 May
Chance of showers (60%)
Chance of showers
Max: 16°C
Sun, 24 May
Chance of showers (30%)
Chance of showers
Max: 19°C

24 HOUR FORECAST FOR MONTREAL

24 Hour Forecast - Mont-Royal, QC

Date/Time Temp.
(°C)

Weather Conditions

LOP †
Wind
(km/h)
19 May 2026
12 AM 21 Chance of showers (40%)  Chance of showers 40 VR 10
1 AM 20 Chance of showers (40%)  Chance of showers 40 VR 10
2 AM 20 Chance of showers (40%)  Chance of showers 40 SW 10
3 AM 20 Chance of showers (40%)  Chance of showers 40 SW 10
4 AM 20 Chance of showers (40%)  Chance of showers 40 SW 10
5 AM 20 Chance of showers (40%)  Chance of showers 40 SW 10
6 AM 20 Chance of showers (60%)  Chance of showers 60 SW 10
7 AM 21 Chance of showers (60%)  Chance of showers 60 SW 10
8 AM 21 Chance of showers (60%)  Chance of showers 60 SW 20 gust 40
9 AM 22 Chance of showers (60%)  Chance of showers 60 SW 20 gust 40
10 AM 23 Mainly cloudy (0%)  Mainly cloudy 0 SW 20 gust 40
11 AM 24 Mainly cloudy (0%)  Mainly cloudy 0 SW 20 gust 40
12 PM 25 A mix of sun and cloud (0%)  A mix of sun and cloud 0 SW 40 gust 60
1 PM 27 A mix of sun and cloud (0%)  A mix of sun and cloud 0 SW 40 gust 60
2 PM 28 A mix of sun and cloud (0%)  A mix of sun and cloud 0 SW 40 gust 60
3 PM 29 A mix of sun and cloud (0%)  A mix of sun and cloud 0 SW 40 gust 60
4 PM 29 A mix of sun and cloud (0%)  A mix of sun and cloud 0 SW 40 gust 60
5 PM 30 A mix of sun and cloud (0%)  A mix of sun and cloud 0 SW 40 gust 60
6 PM 29 Chance of showers (40%)  Chance of showers 40 SW 40 gust 60
7 PM 28 Chance of showers (40%)  Chance of showers 40 SW 40 gust 60
8 PM 27 Chance of showers (40%)  Chance of showers 40 SW 40 gust 60
9 PM 25 Chance of showers (40%)  Chance of showers 40 SW 40 gust 60
10 PM 24 Chance of showers (40%)  Chance of showers 40 SW 40 gust 60
11 PM 22 Chance of showers (40%)  Chance of showers 40 SW 40 gust 60
 
† 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 23:30 on 18 May 2026

Sky Conditions Temperature and Humidity
Partly cloudy Temperature17.5 °C Falling Dew Point 13.8 °C
Windchill 17.5 °C Humidity 79%
Humidex 20.7 °C Cloud base 1507 ft
Rainfall
  Rainfall Today 2.2 mm Rainfall Rate 0.0 mm/hr
  Rainfall This Month 27.4 mm Rainfall This Year 207.2 mm
  Rainfall Last Hour 0.0 mm Last rainfall 2026-05-18 12:15
Wind
  Wind Speed (gust) 3.2 km/h Wind Speed (avg) 1.6 km/h
  Wind Bearing 304° NW Beaufort F1 Light air
Pressure
  Barometer  1011.99 hPa Falling slowly -0.15 hPa/hr
:now::gauges::today::yesterday::records::trends::forum:::Contact:

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

Dawn: 04:45 Sunrise: 05:20 Moonrise: 06:17 Moon
Dusk: 20:56 Sunset:  20:21 Moonset: 23:14
Daylight: 16:11 Day length: 15:01 Moon Phase: Waxing Crescent


Page updated 2026-05-18 11:30:01 PM
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NOAA Monthly Report

                   Monthly Climatological Summary for May 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   8.0  13.5   16:15   2.9   06:08  10.3   0.0   0.0   6.3  32.2   15:55     W
 2   7.1  10.3   17:55   3.9   09:40  11.2   0.0   3.2   3.0  25.7   13:49     W
 3   8.5  13.1   18:39   3.7   05:44   9.8   0.0   0.0   4.7  35.4   15:53     W
 4  12.3  18.9   16:39   8.0   04:20   6.1   0.0   1.8   5.6  27.4   11:53   WSW
 5  17.4  23.0   15:02  11.8   23:50   1.8   0.9   0.8  12.3  53.1   14:03    SW
 6   8.5  11.8   00:00   6.4   09:38   9.8   0.0   6.6   4.2  29.0   00:00   WSW
 7   9.1  12.0   16:35   6.2   07:45   9.2   0.0   0.0  11.4  45.1   12:25     W
 8   9.4  12.7   16:33   6.3   04:05   8.9   0.0   0.2   5.5  33.8   15:13   WSW
 9  11.9  18.3   15:34   5.4   05:56   6.4   0.0   0.0   9.7  48.3   20:11    SE
10  12.5  15.7   15:27   8.9   22:32   5.8   0.0   1.6  10.9  41.8   16:39   WSW
11   9.8  13.0   16:51   6.5   06:07   8.5   0.0   0.2   3.0  20.9   16:01   WNW
12  10.0  14.5   16:25   5.7   05:44   8.3   0.0   0.0   4.9  29.0   16:32   WNW
13   8.9  11.4   10:24   7.7   06:35   9.4   0.0   2.4   5.1  25.7   15:05     E
14  10.2  12.7   15:14   8.2   00:48   8.1   0.0   7.6   3.6  24.1   20:06   NNW
15  14.8  20.1   15:14  10.5   04:18   3.7   0.2   0.8   6.0  25.7   06:30   NNE
16  17.8  23.9   13:50  11.6   04:33   2.2   1.6   0.0  10.2  49.9   22:41   WSW
17  19.1  23.8   15:52  14.6   05:35   1.0   1.8   0.0   8.9  35.4   16:10   WNW
----------------------------------------------------------------------------------
    11.5  23.9    16     2.9     1   120.5   4.5  25.2   6.8  53.1     5     WSW

Max >=  32.0:  0
Max <=   0.0:  0
Min <=   0.0:  0
Min <= -18.0:  0
Max Rain: 7.6 on day 14
Days of Rain: 10 (>= 0.1 mm)  2 (>= 5.0 mm)  0 (>= 20.0 mm)
Heat Base: 18.3  Cool Base: 18.3  Method: Integration

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