Updated8/14/2025 01:52:00
 
Forecast - Environment Canada

 Extended Forecast - Environment Canada
  Thu, 14 Aug
Mainly sunny
Mainly sunny
Max: 29°C
Fri, 15 Aug
Sunny
Sunny
Max: 30°C
Sat, 16 Aug
Sunny
Sunny
Max: 32°C
Sun, 17 Aug
Chance of showers (40%)
Chance of showers
Max: 30°C
Mon, 18 Aug
A mix of sun and cloud
A mix of sun and cloud
Max: 23°C
Tue, 19 Aug
A mix of sun and cloud
A mix of sun and cloud
Max: 23°C
Tonight
Chance of showers (30%)
Chance of showers
Min: 17°C
Night
A few clouds
A few clouds
Min: 18°C
Night
Clear
Clear
Min: 20°C
Night
Chance of showers (60%)
Chance of showers
Min: 21°C
Night
Clear
Clear
Min: 11°C
Night
Cloudy periods
Cloudy periods
Min: 10°C

Forecast

Toronto Island, ON (Issued: 3:30 PM EDT Wednesday 13 August 2025)

Tonight
Partly cloudy with 30 percent chance of showers early this evening and risk of a thunderstorm. Clearing this evening. Low 17.
Thu, 14 Aug
Mainly sunny. High 29. Humidex 35. UV index 7 or high.
Night
A few clouds. Low 18.
Fri, 15 Aug
Sunny. High 30.
Night
Clear. Low 20.
Sat, 16 Aug
Sunny. High 32.
Night
Cloudy with 60 percent chance of showers. Low 21.
Sun, 17 Aug
A mix of sun and cloud with 40 percent chance of showers. High 30.
Night
Clear. Low 11.
Mon, 18 Aug
A mix of sun and cloud. High 23.
Night
Cloudy periods. Low 10.
Tue, 19 Aug
A mix of sun and cloud. High 23.

24 Hour Forecast - Toronto Island, ON

Date/Time Temp.
(°C)

Weather Conditions

LOP †
Wind
(km/h)
14 August 2025
2 AM 20 Clear (0%)  Clear 0 NW 10
3 AM 19 Clear (0%)  Clear 0 NW 10
4 AM 18 Clear (0%)  Clear 0 NW 10
5 AM 17 A few clouds (0%)  A few clouds 0 NW 10
6 AM 18 Mainly sunny (0%)  Mainly sunny 0 NW 10
7 AM 19 Mainly sunny (0%)  Mainly sunny 0 NW 10
8 AM 20 Mainly sunny (0%)  Mainly sunny 0 NE 10
9 AM 21 Mainly sunny (0%)  Mainly sunny 0 NE 10
10 AM 23 Mainly sunny (0%)  Mainly sunny 0 NE 10
11 AM 24 Mainly sunny (0%)  Mainly sunny 0 NE 10
12 PM 25 Mainly sunny (10%)  Mainly sunny 10 NE 10
1 PM 26 Mainly sunny (10%)  Mainly sunny 10 NE 10
2 PM 27 Mainly sunny (10%)  Mainly sunny 10 NE 10
3 PM 28 Mainly sunny (10%)  Mainly sunny 10 NE 10
4 PM 28 Mainly sunny (10%)  Mainly sunny 10 NE 10
5 PM 29 Mainly sunny (10%)  Mainly sunny 10 VR 5
6 PM 28 Mainly sunny (10%)  Mainly sunny 10 VR 5
7 PM 27 Mainly sunny (10%)  Mainly sunny 10 VR 5
8 PM 26 A few clouds (0%)  A few clouds 0 VR 5
9 PM 25 A few clouds (0%)  A few clouds 0 VR 5
10 PM 25 A few clouds (0%)  A few clouds 0 VR 5
11 PM 24 A few clouds (0%)  A few clouds 0 VR 5
15 August 2025
12 AM 23 A few clouds (0%)  A few clouds 0 VR 5
1 AM 22 Clear (0%)  Clear 0 VR 5
 
† 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