Updated10/18/2025 01:07:00
 
Forecast - Environment Canada

 Extended Forecast - Environment Canada
  Sat, 18 Oct
Clearing
Clearing
Max: 20°C
Sun, 19 Oct
Showers
Showers
Max: 22°C
Mon, 20 Oct
Chance of showers (40%)
Chance of showers
Max: 16°C
Tue, 21 Oct
Chance of showers (40%)
Chance of showers
Max: 16°C
Wed, 22 Oct
Chance of showers (40%)
Chance of showers
Max: 13°C
Thu, 23 Oct
A mix of sun and cloud
A mix of sun and cloud
Max: 13°C
Tonight
Chance of showers (40%)
Chance of showers
Min: 10°C
Night
Chance of showers (40%)
Chance of showers
Min: 16°C
Night
Showers
Showers
Min: 9°C
Night
Cloudy periods
Cloudy periods
Min: 9°C
Night
Chance of showers (60%)
Chance of showers
Min: 6°C
Night
Cloudy periods
Cloudy periods
Min: 5°C

Forecast

Toronto Island, ON (Issued: 3:30 PM EDT Friday 17 October 2025)

Tonight
Cloudy. 40 percent chance of showers this evening. Low 10.
Sat, 18 Oct
Clearing. Wind becoming south 20 km/h late in the morning. High 20. UV index 4 or moderate.
Night
Partly cloudy. 40 percent chance of showers overnight. Wind becoming south 20 km/h after midnight. Low 16.
Sun, 19 Oct
Showers. Windy. High 22.
Night
Showers. Low 9.
Mon, 20 Oct
A mix of sun and cloud with 40 percent chance of showers. High 16.
Night
Cloudy periods. Low 9.
Tue, 21 Oct
Cloudy with 40 percent chance of showers. High 16.
Night
Cloudy periods with 60 percent chance of showers. Low 6.
Wed, 22 Oct
A mix of sun and cloud with 40 percent chance of showers. High 13.
Night
Cloudy periods. Low plus 5.
Thu, 23 Oct
A mix of sun and cloud. High 13.

24 Hour Forecast - Toronto Island, ON

Date/Time Temp.
(°C)

Weather Conditions

LOP †
Wind
(km/h)
18 October 2025
2 AM 12 Mainly cloudy (10%)  Mainly cloudy 10 VR 5
3 AM 11 Cloudy (10%)  Cloudy 10 VR 5
4 AM 11 Cloudy (10%)  Cloudy 10 VR 5
5 AM 10 Cloudy (10%)  Cloudy 10 SW 10
6 AM 12 Cloudy (10%)  Cloudy 10 SW 10
7 AM 14 Cloudy (10%)  Cloudy 10 SW 10
8 AM 16 Cloudy (10%)  Cloudy 10 SW 10
9 AM 16 Mainly cloudy (10%)  Mainly cloudy 10 SW 10
10 AM 17 A mix of sun and cloud (10%)  A mix of sun and cloud 10 SW 10
11 AM 17 Mainly sunny (10%)  Mainly sunny 10 S 20
12 PM 18 Mainly sunny (10%)  Mainly sunny 10 S 20
1 PM 19 Mainly sunny (10%)  Mainly sunny 10 S 20
2 PM 20 A mix of sun and cloud (10%)  A mix of sun and cloud 10 S 20
3 PM 20 Mainly sunny (10%)  Mainly sunny 10 S 20
4 PM 19 Mainly sunny (10%)  Mainly sunny 10 S 20
5 PM 19 Mainly sunny (10%)  Mainly sunny 10 S 15
6 PM 18 A few clouds (20%)  A few clouds 20 S 15
7 PM 18 A few clouds (20%)  A few clouds 20 S 15
8 PM 17 A few clouds (20%)  A few clouds 20 S 15
9 PM 17 A few clouds (20%)  A few clouds 20 S 15
10 PM 16 A few clouds (20%)  A few clouds 20 S 15
11 PM 16 A few clouds (20%)  A few clouds 20 S 15
19 October 2025
12 AM 16 Chance of showers (40%)  Chance of showers 40 S 15
1 AM 17 Chance of showers (40%)  Chance of showers 40 S 15
 
† 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