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St. Catharines Weather

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Current Weather

Updated: May 25, 2019 / 9:58 am

21°C Mostly Cloudy
  • Pressure:
  • Humidity: 75 %
  • Dewpoint: 16.5°C
  • Wind: SE 17 km/h
  • Air Quality: 2
  • Sunrise: 5:45
  • Sunset: 20:43
  •  
  • Today: A mix of sun and cloud. 60 percent chance of showers or thunderstorms late this afternoon with risk of a severe thunderstorm. Wind becoming southwest 30 km/h gusting to 50 this afternoon. High 24. Humidex 30. UV index 9 or very high.
  • Tonight: Mainly cloudy with 60 percent chance of showers or thunderstorms this evening and risk of a severe thunderstorm. Clearing after midnight. Wind southwest 30 km/h gusting to 50 becoming light this evening. Low 14.
Weather Image

Extended Forecast

Today

May 25
A mix of sun and cloud. 60 percent chance of showers or thunderstorms late this afternoon with risk of a severe thunderstorm. Wind becoming southwest 30 km/h gusting to 50 this afternoon. High 24. Humidex 30. UV index 9 or very high.

H: 24°C
L: 14°C
POP: 60%

Sunday

May 26
Mainly sunny. Wind becoming southwest 20 km/h late in the morning. High 23. Humidex 26. UV index 9 or very high.

H: 23°C
L: 13°C

Monday

May 27
Increasing cloudiness. High 21.

H: 21°C
L: 14°C

Tuesday

May 28
Cloudy with 60 percent chance of showers. High 22.

H: 22°C
L: 16°C
POP: 60%

Wednesday

May 29
Cloudy with 60 percent chance of showers. High 22.

H: 22°C
L: 14°C
POP: 60%

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