FPCN11 CWTO 181306 AAA UPDATED FORECASTS FOR SOUTHERN ONTARIO AND THE NATIONAL CAPITAL REGION ISSUED BY ENVIRONMENT CANADA AT 9:05 A.M. EDT SATURDAY 18 JULY 2026 FOR TODAY AND SUNDAY. THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 11:00 A.M. EDT. PICKERING - OSHAWA - SOUTHERN DURHAM REGION. TODAY..SHOWERS WITH THUNDERSTORMS. LOCAL AMOUNT 15 TO 25 MM. LOCAL SMOKE. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING NORTHWEST 30 GUSTING TO 50 THIS AFTERNOON. HIGH 25. HUMIDEX 33. UV INDEX 4 OR MODERATE. TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING. LOCAL SMOKE. WIND NORTHWEST 30 KM/H GUSTING TO 50. LOW 15. SUNDAY..CLEARING. WIND NORTH 20 KM/H BECOMING LIGHT IN THE AFTERNOON. HIGH 24. HUMIDEX 26. UV INDEX 8 OR VERY HIGH. UXBRIDGE - BEAVERTON - NORTHERN DURHAM REGION. TODAY..A FEW SHOWERS BECOMING MIXED WITH THUNDERSTORMS EARLY THIS AFTERNOON AND ENDING LATE THIS AFTERNOON THEN CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM LATE THIS MORNING. LOCAL AMOUNT 20 TO 30 MM. LOCAL SMOKE. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING NORTHWEST 30 GUSTING TO 50 NEAR NOON. HIGH 25. HUMIDEX 35. UV INDEX 4 OR MODERATE. TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING. LOCAL SMOKE. WIND NORTHWEST 30 KM/H GUSTING TO 50. LOW 15. SUNDAY..CLEARING. LOCAL SMOKE EARLY IN THE MORNING. WIND NORTH 20 KM/H BECOMING LIGHT IN THE AFTERNOON. HIGH 22. UV INDEX 8 OR VERY HIGH. REMAINDER UNCHANGED. END