Subj : Southern Ontario Weather To : All From : Northern Realms Date : Wed Jul 20 2022 11:05:02 FPCN11 CWTO 201500 Forecasts for Southern Ontario and the National Capital Region issued by Environment Canada at 11:00 a.m. EDT Wednesday 20 July 2022 for today and Thursday. The next scheduled forecast will be issued at 3:30 p.m. EDT. City of Toronto. Today..A mix of sun and cloud. Wind southwest 30 km/h gusting to 50. High 31. Humidex 40. UV index 10 or very high. Tonight..Mainly cloudy. 70 percent chance of showers this evening and after midnight with risk of a thunderstorm. Wind southwest 20 km/h. Low 21. Thursday..Mainly cloudy. 30 percent chance of showers in the morning. Clearing late in the afternoon. Wind becoming west 20 km/h near noon. High 27. Humidex 35. UV index 7 or high. City of Hamilton. Today..A mix of sun and cloud. Wind southwest 40 km/h gusting to 60. High 32. Humidex 40. UV index 10 or very high. Tonight..Partly cloudy. 70 percent chance of showers this evening and after midnight with risk of a thunderstorm. Wind southwest 40 km/h gusting to 60 diminishing to 20 gusting to 40 early this evening. Low 20. Thursday..Mainly cloudy. Clearing late in the afternoon. Wind southwest 20 km/h. High 26. Humidex 34. UV index 8 or very high. Niagara Falls - Welland - Southern Niagara Region. Today..A mix of sun and cloud. Wind southwest 30 km/h gusting to 60. High 33. Humidex 42. UV index 10 or very high. Tonight..Mainly cloudy. 70 percent chance of showers this evening and after midnight with risk of a thunderstorm. Wind southwest 30 km/h gusting to 60. Low 21. Thursday..Mainly cloudy. Wind southwest 20 km/h. High 27. Humidex 35. UV index 8 or very high. Kitchener - Cambridge - Region of Waterloo. Today..Mainly cloudy. A few showers beginning late this afternoon. Risk of a severe thunderstorm late this afternoon. Wind south 30 km/h gusting to 50. High 31. Humidex 38. UV index 8 or very high. Tonight..A few showers ending late this evening then mainly cloudy with 30 percent chance of showers. Risk of a severe thunderstorm this evening. Wind southwest 30 km/h gusting to 50. Low 18. Thursday..Cloudy. 30 percent chance of showers early in the morning. Clearing late in the afternoon. Wind west 30 km/h. High 26. Humidex 31. UV index 8 or very high. London - Parkhill - Eastern Middlesex County. Today..Mainly cloudy with 30 percent chance of showers. A few showers beginning late this afternoon. Risk of a severe thunderstorm late this afternoon. Wind south 30 km/h gusting to 50. High 32. Humidex 40. UV index 8 or very high. Tonight..A few showers ending late this evening then mainly cloudy. Risk of a severe thunderstorm this evening. Wind south 30 km/h gusting to 50 becoming west 30 late this evening. Low 19. Thursday..Mainly cloudy. Clearing early in the afternoon. Wind west 30 km/h. High 29. Humidex 34. UV index 8 or very high. Windsor - Leamington - Essex County. Today..A mix of sun and cloud with 30 percent chance of showers early this afternoon. A few showers beginning this afternoon. Risk of a severe thunderstorm. Wind south 40 km/h gusting to 60. High 31. Humidex 39. UV index 10 or very high. Tonight..A few showers ending this evening then partly cloudy. Risk of a severe thunderstorm early this evening. Wind south 30 km/h becoming west 20 then light this evening. Low 21. Thursday..A mix of sun and cloud. Wind becoming northwest 20 km/h in the morning. High 31. Humidex 38. UV index 10 or very high. Ottawa North - Kanata - Orleans. Today..A mix of sun and cloud. 30 percent chance of showers late this afternoon with risk of a thunderstorm. Wind south 30 km/h. High 31. Humidex 40. UV index 9 or very high. Tonight..Mainly cloudy. 30 percent chance of showers changing to 70 percent chance of showers after midnight. Risk of a thunderstorm this evening and overnight. Wind south 30 km/h. Low 22. Thursday..Mainly cloudy with 70 percent chance of showers. Risk of a thunderstorm early in the morning. Wind south 30 km/h. High 27. Humidex 34. UV index 7 or high. Ottawa South - Richmond - Metcalfe. Today..A mix of sun and cloud. 30 percent chance of showers late this afternoon with risk of a thunderstorm. Wind south 30 km/h. High 31. Humidex 40. UV index 9 or very high. Tonight..Mainly cloudy. 30 percent chance of showers changing to 70 percent chance of showers after midnight. Risk of a thunderstorm this evening and overnight. Wind south 30 km/h. Low 22. Thursday..Mainly cloudy with 70 percent chance of showers. Risk of a thunderstorm early in the morning. Wind south 30 km/h. High 27. Humidex 34. UV index 7 or high. 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, 1 day, 18 hours, 42 minutes * Origin: Northern Realms (21:3/110.3) .