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Extended Forecast - Environment Canada | ||||||
Monday
![]() A mix of sun and cloud Max: 22°C |
Tuesday
![]() Chance of showers Max: 20°C |
Wednesday
![]() A mix of sun and cloud Max: 21°C |
Thursday
![]() Chance of showers Max: 20°C |
Friday
![]() Chance of showers Max: 19°C |
Saturday
![]() A mix of sun and cloud Max: 21°C |
Sunday
![]() A mix of sun and cloud Max: 21°C |
Monday night
![]() Chance of showers Min: 15°C |
Tuesday night
![]() Cloudy periods Min: 16°C |
Wednesday night
![]() Clear Min: 14°C |
Thursday night
![]() Chance of showers Min: 13°C |
Friday night
![]() Cloudy periods Min: 13°C |
Saturday night
![]() Cloudy periods Min: 12°C |
Forecast
St. Catharines, ON (Issued: Monday September 25, 2023 at 05:00 EDT)
- Today
- A mix of sun and cloud. Becoming cloudy this afternoon. Wind becoming northeast 20 km/h gusting to 40 this morning. High 22. Humidex 25. UV index 6 or high.
- Tonight
- Cloudy with 30 percent chance of showers. Wind northeast 20 km/h becoming light this evening. Low 15.
- Tuesday
- Cloudy with 30 percent chance of showers in the morning and early in the afternoon then a mix of sun and cloud. Wind becoming east 20 km/h in the morning. High 20. UV index 4 or moderate.
- Tuesday night
- Cloudy periods. Low 16.
- Wednesday
- A mix of sun and cloud. High 21.
- Wednesday night
- Clear. Low 14.
- Thursday
- A mix of sun and cloud with 30 percent chance of showers. High 20.
- Thursday night
- Cloudy periods with 30 percent chance of showers. Low 13.
- Friday
- A mix of sun and cloud with 30 percent chance of showers. High 19.
- Friday night
- Cloudy periods. Low 13.
- Saturday
- A mix of sun and cloud. High 21.
- Saturday night
- Cloudy periods. Low 12.
- Sunday
- A mix of sun and cloud. High 21.
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24 Hour Forecast - St. Catharines, ON
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