Forecast

St. Catharines, ON ()

Sunday

Sunny. Fog patches dissipating early this morning. High 32. Humidex 40. UV index 6 or high.

Sunday night

Clear. Fog patches developing overnight. Low 17.

Mainly sunny. Fog patches dissipating early in the morning. High 31. Humidex 40.

Monday night

Clear. Low 18.

A mix of sun and cloud. High 31.

Tuesday night

Cloudy periods. Low 18.

A mix of sun and cloud with 40 percent chance of showers. High 27.

Wednesday night

Cloudy periods. Low 13.

A mix of sun and cloud. High 20.

Thursday night

Cloudy periods. Low 11.

A mix of sun and cloud with 30 percent chance of showers. High 16.

Friday night

Cloudy periods with 30 percent chance of showers. Low 10.

A mix of sun and cloud with 30 percent chance of showers. High 15.