⚠Yellow Advisory - Frost ▶
3:46 p.m. EDT Friday 16 October 2026

Impact Level: Moderate

Forecast Confidence: High


Temperatures will drop to near the freezing mark overnight Saturday night.

Frost advisories are issued when widespread frost or freezing temperatures are expected during the growing season.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to QCstorm@ec.gc.ca or post reports on social media using #QCStorm.

In effect for:
  • Montréal Island area

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METRIC | IMPERIAL
Updated: 10/16/2026 @ 18:30 EDT   (0 sec ago)
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Colder 0.7°C than last hour.

8.4°C

Wind Chill:  8.4°C
Cool
High Today
10.1°C
15:06
Low Today
6.6°C
07:01
Yest High
13.2°C
16:08
Yest Low
4.9°C
07:45
Sta* High
19.8°C
2021
Sta* Low
2.7°C
2017
* This Station's Records Since 9/2017
Rec* High
6.0°C
2013
Rec* Low
-21.0°C
2005
* Records from Weather Underground
Dusk, Stopped raining, Overcast Dusk, Stopped raining, Overcast

Wind from ENE Wind:  ENE
3.5

Gusting to:
3.2 km/h
Current Rain Rain:
24.8 mm
Tonight
Chance of showers (30%)
Chance of showers
Sat, 17 Oct
Sunny
Sunny
Night
A few clouds
A few clouds
Min: 2°C
Max: 7°C
Min: 1°C
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Decreased 2°C since last hour. 5.7°C
Last Hour: Decreased 2°C since last hour. -2.0°C
High 15:02: 9.2°C
Low 02:43: 3.5°C
Record High: 26.8°C on
1-Jul-2026
Record Low: -34.0°C on
4-Feb-2023
Wetbulb: 7.2°C
Today: 24.80 mm
Rate (/hr): 0.48 mm
Storm Rain: 24.8 mm
Yesterday: 0.00 mm
Last 7 Days: 32.00 mm
Oct Rain: 85.60 mm
Oct to Date
  Avg:10
49.53 mm
Oct to Date
  Diff from Avg:10
Over 36.07 mm for the month 36.07 mm
Oct Avg: 105.50 mm
Diff from Avg: Under 19.9 mm for the month 19.90 mm
Season:1 983.6 mm
YTD
  Avg:11
700.93 mm
YTD
  Diff from Avg:11
Over 282.67 mm for the year 282.67 mm
126 rain days in 2026
9 days in October
0 days since last rain
Current: ENE  3.5 km/h
1Hr Average: 4.1 km/h
Wind Run: 53.37 miles
Wind Gust
Current: 3.2 km/h
Today: 22.5 km/h 04:57
Month: 32.2 km/h 1-Oct
Year: 70.9 km/h 17-Mar
Record Gust: 88.8 km/h
1-Nov-2019
Sunlight:
10 h 58 m 20 s
of Sunlight Yesterday
10 h 55 m 15 s
of Sunlight Today
Which is
3 min 5 sec shorter than
yesterday
10 h 52 m 10 s
of Sunlight Tomorrow
(Noon ?>) graph (Midnight
Legend

Waxing Crescent
Waxing Crescent, 6 days, 6 hours, 40 minutes in cycle
33%
Illuminated
Humidity Barometer
Current: Decreased 8% since last hour. 83%
Last Hour: Decreased 8% since last hour. 8%
High 15:02: 95%
Low 00:00: 73%
Record High: 98%
12-Jan-2018
Record Low: 13%
24-Apr-2020
Current: Rising 2  mb/hr 1004.6 mb
Last Hour: Rising
High 00:00: 1018.3
Low 13:24: 998.1
Record High: 1050.3 mb
14-Dec-2024
Record Low: 972.5 mb
23-Dec-2022
Heating Degree Days Coming Soon Wind Chill
Today: 7.8
Oct: 105.3
2026 to Date: 2751.7
Cooling Degree Days
2026 to Date: 393.0
Current: 8.4°C
Low 06:34: 3.3°C
Yesterday: 4.9°C
Record: -43.7°C
4-Feb-2023
UV Summary/Forecast Solar Summary
High Today:   0.6 @ 14:18
Oct-17

3.1
Oct-18

2.4
Oct-19

2.7
High Today:  
174 W/m2 @ 14:39
Sun Hours Today:
00:00
   This Month: 44:55 Hrs
Rise: 07:12  Set: 18:07
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Evening
YTD Avg Temp: 10.1°C
Sunrise: 07:12
Sunset: 18:07
Moonrise: 13:34
Moonset: 20:31
Full Moon: 31-Dec-1969
New Moon: 07:03 UTC
31-Dec-1969
Updated at Midnight
Current ET: 0.50 mm
7-Days Rain: 32.00 mm
7-Days ET: 7.30 mm
7-Day:  24.7 mm water in excess of what evaporated in last 7 days. 24.7 mm
October:  66.3 mm water in excess of what evaporated this month. 66.3 mm
HIGHS: LOWS:
37.2°C
27-May-2020
-29.0°C
4-Feb-2023
Daytime Records
  35.2°C°C
01-Jun-2023
  -25.6°C°C
03-Feb-2023
Nitetime Records
  29.2°C°C
06-Jul-2018
  -27.0°C°C
04-Feb-2023
ICN:1 | S3C2:0 | Ajax 3.xx
ISS:Ok | CON:3.7 | RCP:99%
1 Rain season: Jan 1st to Dec 31st.   2 Snow season July 1st to June 30th.   3 Snow manually measured usually around 7AM and 7PM.   5 Estimated amount of water needed to replace the water used by plants and evaporation from the past week. (Negative numbers mean amount of water needed, positive numbers mean excess water is present).   10 Historical average only to day 16 of just the month of October for this station since 2018.   11 Historical average rain this season to day 16 of October for this station since 2018.
 EC Weather Forecast  -   Outlook Tonight & Sat, 17 Oct
Tonight
Chance of showers (30%)
Chance of showers
Min: 2°C
EC forecast: Mainly cloudy. 30 percent chance of showers early this evening. Clearing before morning. Wind becoming northwest 20 km/h gusting to 40 early this evening. Low plus 2 with risk of frost.
Local station forecast: Mostly cloudy and cooler, precipitation ending within 6 hrs, windy with possible wind shift to the w, nw, or n.
Sat, 17 Oct
Sunny
Sunny
Max: 7°C
EC forecast: Sunny. Wind northwest 20 km/h gusting to 40. High 7. UV index 3 or moderate.
 EC Short Term Weather Forecast
Night
A few clouds
A few clouds
Sun, 18 Oct
A mix of sun and cloud
A mix of sun and cloud
Night
Clear
Clear
Mon, 19 Oct
Sunny
Sunny
Night
Clear
Clear
Tue, 20 Oct
Sunny
Sunny
Night
Clear
Clear
Min: 1°C
Max: 14°C
Min: 9°C
Max: 16°C
Min: 6°C
Max: 15°C
Min: 6°C
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