Forecast - Environment Canada

Forecast

Toronto Island, ON (Issued: 3:30 PM EDT Friday 18 April 2025)

Tonight

Mainly cloudy with 70 percent chance of showers changing to 30 percent chance of showers this evening. Showers beginning near midnight. Risk of a thunderstorm this evening and overnight. Wind southwest 30 km/h gusting to 50. Low 13.

Sat, 19 Apr

Showers ending in the morning then cloudy with 40 percent chance of showers. Risk of a thunderstorm early in the morning. Wind southwest 30 km/h gusting to 50 becoming northwest 30 gusting to 50 in the afternoon. High 20. UV index 5 or moderate.

Night

Mainly cloudy. Wind northwest 30 km/h gusting to 50. Low plus 2.

Sun, 20 Apr

Sunny. High 12.

Night

Cloudy periods. Low plus 5.

Mon, 21 Apr

Cloudy with 40 percent chance of showers. High 10.

Night

Cloudy with 60 percent chance of showers. Low 6.

Tue, 22 Apr

Cloudy. High 10.

Night

Cloudy periods. Low 6.

Wed, 23 Apr

A mix of sun and cloud. High 16.

Night

Cloudy periods. Low 7.

Thu, 24 Apr

A mix of sun and cloud. High 16.

24 Hour Forecast - Toronto Island, ON

Date/Time	Temp. (°C)	Weather Conditions	LOP †	Wind (km/h)
19 April 2025
1 AM	15	Showers. Risk of thunderstorms	80	SW 30 gust 50
2 AM	15	Showers. Risk of thunderstorms	80	SW 30 gust 50
3 AM	15	Showers. Risk of thunderstorms	80	SW 30 gust 50
4 AM	16	Showers. Risk of thunderstorms	80	SW 30 gust 50
5 AM	16	Showers. Risk of thunderstorms	80	SW 30 gust 50
6 AM	17	Showers. Risk of thunderstorms	80	SW 30 gust 50
7 AM	17	Showers. Risk of thunderstorms	80	SW 30 gust 50
8 AM	18	Chance of showers	40	SW 30 gust 50
9 AM	18	Chance of showers	40	W 30 gust 50
10 AM	19	Chance of showers	40	W 30 gust 50
11 AM	19	Chance of showers	40	W 30 gust 50
12 PM	19	Chance of showers	40	W 30 gust 50
1 PM	20	Chance of showers	40	W 30 gust 50
2 PM	20	Cloudy	20	W 30 gust 50
3 PM	19	Cloudy	20	NW 30 gust 50
4 PM	18	Cloudy	20	NW 30 gust 50
5 PM	17	Mainly cloudy	20	NW 30 gust 50
6 PM	15	A mix of sun and cloud	20	NW 30 gust 50
7 PM	13	Mainly sunny	20	NW 30 gust 50
8 PM	11	A few clouds	20	NW 30 gust 50
9 PM	10	Partly cloudy	20	NW 30 gust 50
10 PM	9	Partly cloudy	20	NW 30 gust 50
11 PM	8	Mainly cloudy	20	NW 30 gust 50
20 April 2025
12 AM	7	Cloudy	20	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%

Extended Forecast - Environment Canada
	Sat, 19 Apr Chance of showers Max: 20°C	Sun, 20 Apr Sunny Max: 12°C	Mon, 21 Apr Chance of showers Max: 10°C	Tue, 22 Apr Cloudy Max: 10°C	Wed, 23 Apr A mix of sun and cloud Max: 16°C	Thu, 24 Apr A mix of sun and cloud Max: 16°C
Tonight Chance of showers Min: 13°C	Night Mainly cloudy Min: 2°C	Night Cloudy periods Min: 5°C	Night Chance of showers Min: 6°C	Night Cloudy periods Min: 6°C	Night Cloudy periods Min: 7°C