Observed at: St. Catharines / Niagara District Airport
Date: 5:00 PM EST Friday 6 November 2026
Mostly Cloudy
Mostly Cloudy 		Temp.: 10 °C
Wind: SW 17 km/h
Humidity: 74 %
Dew point: 5 °C
Pressure: 101.3 kPa
Tendency: 0.14 kPa
Visibility: 24 km 		Normals:
Max 10°C Min 3°C
 Extended Forecast - Environment Canada
  Sat, 7 Nov
Chance of showers (60%)
Chance of showers
Max: 10°C
 Sun, 8 Nov
A mix of sun and cloud
A mix of sun and cloud
Max: 10°C
 Mon, 9 Nov
A mix of sun and cloud
A mix of sun and cloud
Max: 10°C
 Tue, 10 Nov
A mix of sun and cloud
A mix of sun and cloud
Max: 12°C
 Wed, 11 Nov
A mix of sun and cloud
A mix of sun and cloud
Max: 8°C
 Thu, 12 Nov
Cloudy
Cloudy
Max: 7°C
Tonight
Chance of showers (40%)
Chance of showers
Min: 4°C
 Night
Chance of showers (40%)
Chance of showers
Min: 5°C
 Night
Chance of showers (40%)
Chance of showers
Min: 6°C
 Night
Cloudy periods
Cloudy periods
Min: 8°C
 Night
Cloudy periods
Cloudy periods
Min: 5°C
 Night
Cloudy periods
Cloudy periods
Min: 4°C

Forecast

St. Catharines, ON (Issued: 3:30 PM EST Friday 6 November 2026)

Tonight
Partly cloudy with 40 percent chance of showers. Wind southwest 20 km/h becoming light late this evening. Low plus 4.
Sat, 7 Nov
Cloudy with 60 percent chance of showers. Wind becoming northwest 20 km/h gusting to 40 early in the afternoon. High 10. UV index 2 or low.
Night
Cloudy. 40 percent chance of showers in the evening. Wind west 20 km/h gusting to 40. Low plus 5.
Sun, 8 Nov
A mix of sun and cloud. Windy. High 10.
Night
Cloudy periods with 40 percent chance of showers. Windy. Low 6.
Mon, 9 Nov
A mix of sun and cloud. High 10.
Night
Cloudy periods. Low 8.
Tue, 10 Nov
A mix of sun and cloud. High 12.
Night
Cloudy periods. Low plus 5.
Wed, 11 Nov
A mix of sun and cloud. High 8.
Night
Cloudy periods. Low plus 4.
Thu, 12 Nov
Cloudy. High 7.

24 Hour Forecast - St. Catharines, ON

Date/Time Temp.
(°C)
Weather Conditions
LOP †		 Wind
(km/h)
6 November 2026
6 PM 9 Chance of showers (40%)  Chance of showers 40 SW 20
7 PM 8 Chance of showers (40%)  Chance of showers 40 SW 20
8 PM 8 Chance of showers (40%)  Chance of showers 40 SW 20
9 PM 8 Chance of showers (40%)  Chance of showers 40 SW 20
10 PM 8 Chance of showers (40%)  Chance of showers 40 SW 10
11 PM 7 Chance of showers (40%)  Chance of showers 40 SW 10
7 November 2026
12 AM 7 Chance of showers (40%)  Chance of showers 40 SW 10
1 AM 6 Chance of showers (40%)  Chance of showers 40 VR 5
2 AM 5 Chance of showers (40%)  Chance of showers 40 VR 5
3 AM 5 Chance of showers (40%)  Chance of showers 40 VR 5
4 AM 4 Chance of showers (40%)  Chance of showers 40 S 10
5 AM 4 Chance of showers (40%)  Chance of showers 40 S 10
6 AM 4 Chance of showers (60%)  Chance of showers 60 S 10
7 AM 4 Chance of showers (60%)  Chance of showers 60 W 10
8 AM 5 Chance of showers (60%)  Chance of showers 60 W 10
9 AM 6 Chance of showers (60%)  Chance of showers 60 W 10
10 AM 7 Chance of showers (60%)  Chance of showers 60 W 10
11 AM 8 Chance of showers (60%)  Chance of showers 60 W 10
12 PM 8 Chance of showers (60%)  Chance of showers 60 W 10
1 PM 9 Chance of showers (60%)  Chance of showers 60 W 20
2 PM 9 Chance of showers (60%)  Chance of showers 60 W 20
3 PM 10 Chance of showers (60%)  Chance of showers 60 W 20
4 PM 10 Chance of showers (60%)  Chance of showers 60 NW 20 gust 40
5 PM 10 Chance of showers (60%)  Chance of showers 60 NW 20 gust 40
 
† 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