FPCN11 CWTO 212244 AAB UPDATED FORECASTS FOR SOUTHERN ONTARIO AND THE NATIONAL CAPITAL REGION ISSUED BY ENVIRONMENT CANADA AT 6:43 P.M. EDT SATURDAY 21 MARCH 2026 FOR TONIGHT SUNDAY AND SUNDAY NIGHT. THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. EDT SUNDAY. CITY OF TORONTO. TONIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. LOW PLUS 2. SUNDAY..SHOWERS. HIGH 7. UV INDEX 2 OR LOW. SUNDAY NIGHT..OVERCAST. WIND BECOMING NORTHEAST 20 KM/H GUSTING TO 40 IN THE EVENING THEN LIGHT AFTER MIDNIGHT. LOW MINUS 2. WIND CHILL MINUS 6 OVERNIGHT. HALTON HILLS - MILTON. TONIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. RISK OF FREEZING RAIN LATE THIS EVENING AND OVERNIGHT. LOW PLUS 1. SUNDAY..SHOWERS. HIGH 7. UV INDEX 2 OR LOW. SUNDAY NIGHT..OVERCAST. WIND UP TO 15 KM/H. LOW MINUS 2. WIND CHILL MINUS 6 OVERNIGHT. MISSISSAUGA - BRAMPTON. TONIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. RISK OF FREEZING RAIN OVER NORTHERN SECTIONS LATE THIS EVENING AND OVERNIGHT. LOW PLUS 1. SUNDAY..SHOWERS. HIGH 7. UV INDEX 2 OR LOW. SUNDAY NIGHT..OVERCAST. WIND UP TO 15 KM/H. LOW MINUS 2. WIND CHILL MINUS 6 OVERNIGHT. CALEDON. TONIGHT..CLOUDY WITH 60 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. RISK OF FREEZING RAIN LATE THIS EVENING AND OVERNIGHT. LOW ZERO. SUNDAY..SHOWERS ENDING IN THE AFTERNOON THEN CLOUDY. HIGH PLUS 5. UV INDEX 2 OR LOW. SUNDAY NIGHT..OVERCAST. WIND UP TO 15 KM/H. LOW MINUS 4. WIND CHILL MINUS 9 OVERNIGHT. GUELPH - ERIN - SOUTHERN WELLINGTON COUNTY. TONIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. RISK OF FREEZING RAIN LATE THIS EVENING AND OVERNIGHT. LOW PLUS 1. SUNDAY..SHOWERS. HIGH 7. UV INDEX 2 OR LOW. SUNDAY NIGHT..OVERCAST. WIND UP TO 15 KM/H. LOW MINUS 3. WIND CHILL MINUS 7 OVERNIGHT. REMAINDER UNCHANGED. END