Subj : Southern Ontario Weather To : All From : Northern Realms Date : Sat May 21 2022 05:05:03 FPCN11 CWTO 210900 Forecasts for Southern Ontario and the National Capital Region issued by Environment Canada at 5:00 a.m. EDT Saturday 21 May 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. 40 percent chance of showers this afternoon with risk of a thunderstorm. Wind southwest 20 km/h. High 25. Humidex 30. UV index 9 or very high. Tonight..Cloudy with 60 percent chance of showers. Risk of a thunderstorm early this evening. Wind northwest 20 km/h gusting to 40 becoming light this evening. Low 15. Sunday..Cloudy. 60 percent chance of showers in the morning. Wind northwest 20 km/h becoming light near noon. High 19. UV index 5 or moderate. City of Hamilton. Today..A mix of sun and cloud. 40 percent chance of showers this afternoon with risk of a thunderstorm. Wind becoming southwest 30 km/h gusting to 50 this morning then light this afternoon. High 25. Humidex 32. UV index 9 or very high. Tonight..Cloudy with 60 percent chance of showers. Risk of a thunderstorm early this evening. Wind west 40 km/h gusting to 60 becoming light this evening. Low 16. Sunday..Cloudy. 60 percent chance of showers in the morning. Wind becoming west 20 km/h in the afternoon. High 18. UV index 5 or moderate. Niagara Falls - Welland - Southern Niagara Region. Today..A mix of sun and cloud. 60 percent chance of showers late this afternoon with risk of a thunderstorm. Wind southwest 30 km/h gusting to 50 becoming light this afternoon. High 25. Humidex 31. UV index 9 or very high. Tonight..Cloudy with 60 percent chance of showers. Risk of a thunderstorm this evening. Fog patches developing near midnight. Wind becoming west 30 km/h gusting to 50 then light this evening. Low 15. Sunday..Cloudy. 60 percent chance of showers in the morning. Fog patches dissipating in the morning. High 18. UV index 6 or high. Kitchener - Cambridge - Region of Waterloo. Today..Mainly cloudy. 40 percent chance of showers with risk of a thunderstorm. Wind southwest 20 km/h becoming light early this morning. Wind becoming southwest 30 gusting to 50 this morning. High 23. Humidex 28. UV index 7 or high. Tonight..Cloudy with 60 percent chance of showers. Wind northwest 30 km/h gusting to 50 becoming light early this evening. Low 10. Sunday..Cloudy. 60 percent chance of showers in the morning. Becoming a mix of sun and cloud in the afternoon. Wind northwest 20 km/h. High 18. UV index 7 or high. London - Parkhill - Eastern Middlesex County. Today..Mainly cloudy. 30 percent chance of showers early this morning. A few showers beginning this morning. Risk of a thunderstorm. Wind becoming southwest 30 km/h gusting to 50 this morning then northwest 20 gusting to 40 late this afternoon. High 24. Humidex 29. UV index 4 or moderate. Tonight..Showers. Risk of a thunderstorm early this evening. Wind northwest 30 km/h becoming light early this evening. Low 9. Sunday..Cloudy. 60 percent chance of showers in the morning. Clearing in the afternoon. Wind becoming northwest 20 km/h early in the afternoon. High 16. UV index 7 or high. Windsor - Leamington - Essex County. Today..Cloudy. 30 percent chance of showers this morning. A few showers beginning this morning. Risk of a thunderstorm. Wind northwest 20 km/h gusting to 50 becoming southwest 20 late this morning then northwest 30 this afternoon. High 23. Humidex 28. UV index 4 or moderate. Tonight..Showers. Risk of a thunderstorm early this evening. Wind northwest 20 km/h becoming light this evening. Low 13. Sunday..Mainly cloudy. 60 percent chance of showers in the morning. Wind becoming northwest 20 km/h gusting to 40 early in the afternoon then light late in the afternoon. High 19. UV index 7 or high. Ottawa North - Kanata - Orleans. Today..Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind southwest 20 km/h gusting to 40 becoming light this afternoon. High 27. Humidex 34. UV index 6 or high. Tonight..Mainly cloudy. 60 percent chance of showers this evening with risk of a thunderstorm. Low 14. Sunday..Cloudy. 60 percent chance of showers in the afternoon. Wind becoming northwest 20 km/h near noon. High 18. UV index 5 or moderate. Ottawa South - Richmond - Metcalfe. Today..Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind becoming southwest 20 km/h gusting to 40 this morning then light this afternoon. High 27. Humidex 34. UV index 6 or high. Tonight..Mainly cloudy. 60 percent chance of showers this evening with risk of a thunderstorm. Low 14. Sunday..Cloudy. 60 percent chance of showers in the afternoon. Wind becoming northwest 20 km/h near noon. High 18. UV index 5 or moderate. This reproduction is a copy of the version available at: https://weather.gc.ca/forecast/public_bulletins_e.html?Bulletin=fpcn11.cwto --- Mystic BBS v1.12 A48 (Raspberry Pi/32) * Origin: Northern Realms (21:3/110) .