Toronto Weather: A Muggy 21°C Wednesday, Then 10 to 15 mm of Rain Tonight

Wednesday brings one more warm, muggy day to Toronto before steady rain moves in tonight. After that, temperatures ease back toward normal over the next several days, according to Environment and Climate Change Canada's forecast issued at 5 a.m. EST.

Right now

At 8 a.m., Toronto Pearson International Airport recorded 15.5°C under mostly cloudy skies. Humidity was 83 per cent with a dew point of 12.6°C. Winds were light from the east-southeast at 8 km/h, and the pressure was 101.5 kPa and falling.

Today: high of 21°C

Expect a mix of sun and cloud, becoming cloudy this afternoon. There is a 40 per cent chance of showers late this afternoon. Winds turn south at 20 km/h near noon, and the UV index is 3, or moderate.

That is 12 degrees above the normal high of 9°C for the date.

Tonight: 10 to 15 mm of rain

Showers are forecast overnight, with 10 to 15 millimetres of rain and south winds at 20 km/h. The low is a mild 15°C, which is warmer than the normal daytime high. Expect wet roads for Thursday's morning commute.

The next six days

• Thursday: Mainly cloudy, 30 per cent chance of showers, high 16°C. Southwest winds of 20 km/h gusting to 40. Cloudy periods overnight, low 7°C.
• Friday: Sun and cloud, 40 per cent chance of showers, high 15°C. Cloudy overnight with a 40 per cent chance of showers, low 10°C.
• Saturday: Cloudy, 40 per cent chance of showers, high 13°C. Low 3°C.
• Sunday: Cloudy, high 8°C. Low 4°C.
• Monday: Cloudy, high 9°C. Low 5°C.
• Tuesday: Cloudy, 30 per cent chance of showers, high 9°C.

The bottom line

Tonight's rain is the main event. After that, the daily rain chances through Saturday sit between 30 and 40 per cent. Thursday's gusts up to 40 km/h are the strongest in the forecast. By Sunday, highs are back near the seasonal normal of 9°C.

Sunrise today is at 6:57 a.m. and sunset at 5:05 p.m. EST.

Forecasts change. Check Environment Canada's Toronto page for the latest conditions and any alerts.