Subj : Southern Ontario Weather To : All From : Northern Realms Date : Tue Jul 19 2022 15:35:02 FPCN11 CWTO 191930 Forecasts for Southern Ontario and the National Capital Region issued by Environment Canada at 3:30 p.m. EDT Tuesday 19 July 2022 for tonight Wednesday and Wednesday night. The next scheduled forecast will be issued at 5:00 a.m. EDT Wednesday. City of Toronto. Tonight..Partly cloudy with 30 percent chance of showers. Risk of a thunderstorm early this evening. Wind south 20 km/h becoming light early this evening. Low 23. Wednesday..Sunny. Increasing cloudiness in the afternoon. Wind becoming south 30 km/h gusting to 50 in the morning. High 32. Humidex 41. UV index 10 or very high. Wednesday night..Mainly cloudy. 70 percent chance of showers changing to 30 percent chance of showers after midnight. Risk of a thunderstorm in the evening and after midnight. Wind southwest 20 km/h. Low 20. City of Hamilton. Tonight..Partly cloudy. 40 percent chance of showers early this evening with risk of a thunderstorm. Wind southwest 20 km/h becoming light early this evening. Low 22. Wednesday..Sunny. Becoming a mix of sun and cloud in the afternoon. Wind becoming southwest 20 km/h gusting to 50 in the morning then south 40 gusting to 60 early in the afternoon. High 30. Humidex 39. UV index 10 or very high. Wednesday night..Mainly cloudy. 70 percent chance of showers in the evening with risk of a thunderstorm. Wind west 40 km/h gusting to 60 becoming southwest 20 gusting to 40 early in the evening. Low 18 with temperature rising to 21 by morning. Niagara Falls - Welland - Southern Niagara Region. Tonight..Partly cloudy. 40 percent chance of showers this evening with risk of a thunderstorm. Wind south 20 km/h gusting to 40 becoming light this evening. Low 24. Wednesday..Sunny. Becoming a mix of sun and cloud in the afternoon. Wind southwest 30 km/h gusting to 60. High 32. Humidex 41. UV index 10 or very high. Wednesday night..Mainly cloudy. 70 percent chance of showers changing to 30 percent chance of showers near midnight. Risk of a thunderstorm in the evening. Wind southwest 30 km/h gusting to 60. Low 21. Kitchener - Cambridge - Region of Waterloo. Tonight..Partly cloudy. 30 percent chance of showers early this evening with risk of a thunderstorm. Clearing before morning. Wind west 20 km/h gusting to 40 becoming light after midnight. Low 22. Wednesday..Mainly sunny. Increasing cloudiness late in the morning then 30 percent chance of showers in the afternoon. A few showers beginning late in the afternoon. Risk of a thunderstorm and risk of a severe thunderstorm in the afternoon. Wind becoming southwest 30 km/h gusting to 50 in the morning. High 30. Humidex 37. UV index 9 or very high. Wednesday night..A few showers ending near midnight then cloudy with 30 percent chance of showers. Risk of a severe thunderstorm in the evening. Wind southwest 30 km/h gusting to 50 becoming light after midnight. Wind becoming west 20 before morning. Low 18. London - Parkhill - Eastern Middlesex County. Tonight..Partly cloudy. 40 percent chance of showers early this evening with risk of a thunderstorm. Clearing before morning. Wind southwest 30 km/h becoming light early this evening. Low 22. Wednesday..Sunny early in the morning then a mix of sun and cloud with 70 percent chance of showers late in the afternoon. Risk of a severe thunderstorm late in the afternoon. Wind becoming south 30 km/h gusting to 50 in the morning. High 30. Humidex 38. UV index 10 or very high. Wednesday night..Mainly cloudy. 70 percent chance of showers in the evening with risk of a severe thunderstorm. Wind southwest 30 km/h gusting to 50 becoming light near midnight. Low 20. Windsor - Leamington - Essex County. Tonight..Partly cloudy with 30 percent chance of showers early this evening. Otherwise clear. Wind southwest 30 km/h gusting to 50 becoming light late this evening. Low 23. Wednesday..Increasing cloudiness. 70 percent chance of showers late in the afternoon with risk of a severe thunderstorm. Wind southwest 20 km/h gusting to 50 becoming south 40 gusting to 60 early in the afternoon. High 32. Humidex 41. UV index 8 or very high. Wednesday night..Partly cloudy. 70 percent chance of showers early in the evening with risk of a severe thunderstorm. Wind southwest 30 km/h becoming light in the evening. Low 20. Ottawa North - Kanata - Orleans. Tonight..Clear early this evening then partly cloudy with 40 percent chance of showers this evening. Risk of a thunderstorm this evening. Wind west 30 km/h gusting to 50 becoming light early this evening. Low 18. Wednesday..A mix of sun and cloud. 30 percent chance of showers late in the afternoon with risk of a thunderstorm. Wind becoming south 20 km/h early in the afternoon. High 31. Humidex 41. UV index 10 or very high. Wednesday night..Mainly cloudy. 30 percent chance of showers changing to 70 percent chance of showers near midnight. Risk of a thunderstorm in the evening and overnight. Wind south 30 km/h becoming light late in the evening. Low 22. Ottawa South - Richmond - Metcalfe. Tonight..Clear early this evening then partly cloudy with 40 percent chance of showers this evening. Risk of a thunderstorm this evening. Wind west 30 km/h gusting to 50 becoming light early this evening. Low 18. Wednesday..A mix of sun and cloud. 30 percent chance of showers late in the afternoon with risk of a thunderstorm. Wind becoming south 20 km/h early in the afternoon. High 31. Humidex 41. UV index 10 or very high. Wednesday night..Mainly cloudy. 30 percent chance of showers changing to 70 percent chance of showers near midnight. Risk of a thunderstorm in the evening and overnight. Wind south 30 km/h becoming light late in the evening. Low 22. This reproduction is a copy of the version available at: https://weather.gc.ca/forecast/public_bulletins_e.html?Bulletin=fpcn11.cwto --- up 1 week, 23 hours, 12 minutes * Origin: Northern Realms (21:3/110.3) .