Subj : Southern Ontario Weather To : All From : Northern Realms Date : Sat Jul 23 2022 05:05:02 FPCN11 CWTO 230900 Forecasts for Southern Ontario and the National Capital Region issued by Environment Canada at 5:00 a.m. EDT Saturday 23 July 2022 for today and Sunday. The next scheduled forecast will be issued at 11:00 a.m. EDT. City of Toronto. Today..A mix of sun and cloud. 30 percent chance of showers this afternoon with risk of a thunderstorm. Wind becoming southwest 30 km/h gusting to 50 this morning. High 33. Humidex 39. UV index 9 or very high. Tonight..Partly cloudy. 30 percent chance of showers early this evening and overnight. Risk of a thunderstorm. Wind south 20 km/h gusting to 40 becoming light late this evening. Low 21. Sunday..Mainly cloudy with 70 percent chance of showers and risk of a thunderstorm. Wind southwest 30 km/h gusting to 50. High 28. Humidex 37. UV index 7 or high. City of Hamilton. Today..Sunny early this morning then a mix of sun and cloud with 30 percent chance of showers this afternoon. Risk of a thunderstorm this afternoon. Wind becoming southwest 20 km/h gusting to 40 this morning. High 31. Humidex 39. UV index 9 or very high. Tonight..Partly cloudy. 30 percent chance of showers early this evening. 40 percent chance of showers overnight. Risk of a thunderstorm. Wind south 20 km/h. Low 20. Sunday..Cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind southwest 20 km/h gusting to 70 increasing to 40 gusting to 60 late in the morning then becoming west 20 gusting to 40. High 28. Humidex 36. UV index 6 or high. Niagara Falls - Welland - Southern Niagara Region. Today..Sunny this morning then a mix of sun and cloud with 30 percent chance of showers this afternoon. Risk of a thunderstorm this afternoon. Wind becoming southwest 30 km/h gusting to 50 this morning. High 33. Humidex 41. UV index 9 or very high. Tonight..Partly cloudy. 30 percent chance of showers early this evening. 40 percent chance of showers overnight. Risk of a thunderstorm. Wind southwest 20 km/h gusting to 40 becoming light this evening. Wind becoming southwest 20 before morning. Low 22. Sunday..Cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind south 20 km/h gusting to 60 becoming southwest 40 gusting to 60 early in the afternoon then diminishing to 20 gusting to 40. High 28. Humidex 36. UV index 6 or high. Kitchener - Cambridge - Region of Waterloo. Today..A mix of sun and cloud with 60 percent chance of showers. Risk of a thunderstorm. Wind becoming southwest 20 km/h gusting to 40 this morning. High 31. Humidex 38. UV index 9 or very high. Tonight..Mainly cloudy. 60 percent chance of showers early this evening. A few showers with thunderstorms beginning overnight. Risk of a thunderstorm early this evening. Fog patches developing after midnight. Wind south 20 km/h. Low 19. Sunday..Showers with thunderstorms. Fog patches dissipating in the morning. Wind southwest 30 km/h gusting to 50. High 28. Humidex 34. UV index 4 or moderate. London - Parkhill - Eastern Middlesex County. Today..A mix of sun and cloud with 60 percent chance of showers. Risk of a thunderstorm. Wind becoming southwest 20 km/h gusting to 40 this morning then light late this afternoon. High 31. Humidex 38. UV index 9 or very high. Tonight..Partly cloudy. 60 percent chance of showers early this evening. 40 percent chance of showers overnight. Risk of a thunderstorm. Fog patches developing after midnight. Wind becoming southwest 30 km/h gusting to 50 overnight. Low 20. Sunday..Cloudy with 70 percent chance of showers or thunderstorms. Fog patches dissipating in the morning. Wind southwest 30 km/h gusting to 50 becoming light in the afternoon. High 27. Humidex 36. UV index 6 or high. Windsor - Leamington - Essex County. Today..Showers with thunderstorms. Wind becoming southwest 30 km/h late this morning. High 31. Humidex 39. UV index 4 or moderate. Tonight..Clear. Increasing cloudiness near midnight then 70 percent chance of showers or thunderstorms overnight. Wind southwest 30 km/h gusting to 50. Low 21. Sunday..Mainly cloudy with 70 percent chance of showers or thunderstorms. Wind southwest 20 km/h gusting to 50 becoming west 40 gusting to 60 late in the morning. High 30. Humidex 37. UV index 7 or high. Ottawa North - Kanata - Orleans. Today..Sunny this morning then a mix of sun and cloud with 40 percent chance of showers this afternoon. Risk of a thunderstorm this afternoon. Wind becoming southwest 30 km/h gusting to 50 this morning. High 31. Humidex 37. UV index 8 or very high. Tonight..Partly cloudy with 40 percent chance of showers early this evening then clear. Risk of a thunderstorm early this evening. Wind southwest 20 km/h becoming light early this evening. Low 19. Sunday..Increasing cloudiness. A few showers beginning in the morning. Risk of a thunderstorm. Wind becoming southwest 30 km/h gusting to 60 in the morning. High 25. Humidex 34. UV index 4 or moderate. Ottawa South - Richmond - Metcalfe. Today..Sunny this morning then a mix of sun and cloud with 40 percent chance of showers this afternoon. Risk of a thunderstorm this afternoon. Wind becoming southwest 30 km/h gusting to 50 this morning. High 31. Humidex 37. UV index 8 or very high. Tonight..Partly cloudy with 40 percent chance of showers early this evening then clear. Risk of a thunderstorm early this evening. Wind southwest 20 km/h becoming light early this evening. Low 19. Sunday..Increasing cloudiness. A few showers beginning in the morning. Risk of a thunderstorm. Wind becoming southwest 30 km/h gusting to 60 in the morning. High 25. Humidex 34. UV index 4 or moderate. This reproduction is a copy of the version available at: https://weather.gc.ca/forecast/public_bulletins_e.html?Bulletin=fpcn11.cwto --- up 2 days, 11 hours, 55 minutes * Origin: Northern Realms (21:3/110.3) .