Subj : Southern Ontario Weather To : All From : Northern Realms Date : Wed Jul 20 2022 05:05:02 FPCN11 CWTO 200900 Forecasts for Southern Ontario and the National Capital Region issued by Environment Canada at 5:00 a.m. EDT Wednesday 20 July 2022 for today and Thursday. 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 early this morning with risk of a thunderstorm. Wind becoming south 30 km/h gusting to 50 this morning. 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 becoming southwest 40 km/h gusting to 60 this morning. 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. 30 percent chance of showers early this morning with risk of a thunderstorm. 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..A mix of sun and cloud. 30 percent chance of showers early this morning. A few showers beginning late this afternoon. Risk of a thunderstorm early this morning. Risk of a severe thunderstorm late this afternoon. Wind south 30 km/h gusting to 50. High 31. Humidex 38. UV index 10 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..Increasing cloudiness. A few showers beginning late this afternoon. Risk of a severe thunderstorm late this afternoon. Wind becoming south 30 km/h gusting to 50 this morning. 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. A few showers beginning this afternoon. Risk of a severe thunderstorm late this afternoon. 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. 40 percent chance of showers early this morning. 30 percent chance of showers late this afternoon. Risk of a thunderstorm. Wind becoming south 30 km/h late this morning. High 31. Humidex 40. UV index 10 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. 40 percent chance of showers early this morning. 30 percent chance of showers late this afternoon. Risk of a thunderstorm. Wind becoming south 30 km/h late this morning. High 31. Humidex 40. UV index 10 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, 12 hours, 42 minutes * Origin: Northern Realms (21:3/110.3) .