Updated9/15/2025 14:29:00
 
Forecast - Environment Canada

 Extended Forecast - Environment Canada
  Tue, 16 Sep
Sunny
Sunny
Max: 25°C
Wed, 17 Sep
Sunny
Sunny
Max: 26°C
Thu, 18 Sep
Sunny
Sunny
Max: 27°C
Fri, 19 Sep
A mix of sun and cloud
A mix of sun and cloud
Max: 22°C
Sat, 20 Sep
A mix of sun and cloud
A mix of sun and cloud
Max: 19°C
Sun, 21 Sep
A mix of sun and cloud
A mix of sun and cloud
Max: 23°C
Tonight
A few clouds
A few clouds
Min: 13°C
Night
Clear
Clear
Min: 13°C
Night
Clear
Clear
Min: 14°C
Night
Cloudy periods
Cloudy periods
Min: 14°C
Night
Cloudy periods
Cloudy periods
Min: 9°C
Night
Cloudy periods
Cloudy periods
Min: 10°C

Forecast

Toronto Island, ON (Issued: 3:30 PM EDT Monday 15 September 2025)

Tonight
A few clouds. Low 13.
Tue, 16 Sep
Sunny. High 25. Humidex 27. UV index 6 or high.
Night
Clear. Low 13.
Wed, 17 Sep
Sunny. High 26.
Night
Clear. Low 14.
Thu, 18 Sep
Sunny. High 27.
Night
Cloudy periods. Low 14.
Fri, 19 Sep
A mix of sun and cloud. High 22.
Night
Cloudy periods. Low 9.
Sat, 20 Sep
A mix of sun and cloud. High 19.
Night
Cloudy periods. Low 10.
Sun, 21 Sep
A mix of sun and cloud. High 23.

24 Hour Forecast - Toronto Island, ON

Date/Time Temp.
(°C)

Weather Conditions

LOP †
Wind
(km/h)
15 September 2025
5 PM 24 Mainly sunny (10%)  Mainly sunny 10 E 10
6 PM 22 Mainly sunny (10%)  Mainly sunny 10 E 10
7 PM 21 A few clouds (10%)  A few clouds 10 E 10
8 PM 19 A few clouds (10%)  A few clouds 10 VR 5
9 PM 19 A few clouds (10%)  A few clouds 10 VR 5
10 PM 18 A few clouds (10%)  A few clouds 10 VR 5
11 PM 18 A few clouds (10%)  A few clouds 10 VR 5
16 September 2025
12 AM 17 Clear (0%)  Clear 0 VR 5
1 AM 17 Clear (0%)  Clear 0 VR 5
2 AM 16 Clear (0%)  Clear 0 NE 10
3 AM 15 Clear (0%)  Clear 0 NE 10
4 AM 14 Clear (0%)  Clear 0 NE 10
5 AM 13 A few clouds (0%)  A few clouds 0 NE 10
6 AM 14 A few clouds (0%)  A few clouds 0 NE 10
7 AM 15 Mainly sunny (0%)  Mainly sunny 0 NE 10
8 AM 16 Mainly sunny (0%)  Mainly sunny 0 E 10
9 AM 18 Mainly sunny (0%)  Mainly sunny 0 E 10
10 AM 20 Sunny (0%)  Sunny 0 E 10
11 AM 22 Sunny (0%)  Sunny 0 E 10
12 PM 22 Sunny (0%)  Sunny 0 E 10
1 PM 23 Sunny (0%)  Sunny 0 E 10
2 PM 23 Sunny (0%)  Sunny 0 E 10
3 PM 24 Sunny (0%)  Sunny 0 E 10
4 PM 24 Sunny (0%)  Sunny 0 E 10
 
† 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