⚠ | Rainfall Warning | ▶ |
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Extended Forecast - Environment Canada | ||||||
Fri, 23 May
![]() Periods of rain Max: 13°C |
Sat, 24 May
![]() Cloudy Max: 12°C |
Sun, 25 May
![]() A mix of sun and cloud Max: 15°C |
Mon, 26 May
![]() A mix of sun and cloud Max: 17°C |
Tue, 27 May
![]() Cloudy Max: 15°C |
Wed, 28 May
![]() Chance of showers Max: 15°C |
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Tonight
![]() Periods of rain Min: 9°C |
Night
![]() Chance of showers Min: 8°C |
Night
![]() Cloudy periods Min: 8°C |
Night
![]() Cloudy periods Min: 9°C |
Night
![]() Cloudy periods Min: 11°C |
Night
![]() Chance of showers Min: 11°C |
Forecast
St. Catharines, ON (Issued: 3:30 PM EDT Thursday 22 May 2025)
- Tonight
- Periods of rain. Amount 5 to 10 mm. Wind becoming west 20 km/h gusting to 40 after midnight. Low 9.
- Fri, 23 May
- Periods of rain ending in the afternoon then cloudy with 40 percent chance of showers. Amount 5 mm. Wind west 20 km/h gusting to 40. High 13. UV index 2 or low.
- Night
- Cloudy with 40 percent chance of showers. Wind west 20 km/h gusting to 40. Low 8.
- Sat, 24 May
- Cloudy. High 12.
- Night
- Cloudy periods. Low 8.
- Sun, 25 May
- A mix of sun and cloud. High 15.
- Night
- Cloudy periods. Low 9.
- Mon, 26 May
- A mix of sun and cloud. High 17.
- Night
- Cloudy periods. Low 11.
- Tue, 27 May
- Cloudy. High 15.
- Night
- Cloudy with 60 percent chance of showers. Low 11.
- Wed, 28 May
- Cloudy with 60 percent chance of showers. High 15.
24 Hour Forecast - St. Catharines, ON
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