FPCN11 CWTO 252256 AAA UPDATED FORECASTS FOR SOUTHERN ONTARIO AND THE NATIONAL CAPITAL REGION ISSUED BY ENVIRONMENT CANADA AT 6:55 P.M. EDT SATURDAY 25 APRIL 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..CLOUDY. CLEARING LATE THIS EVENING. WIND NORTHEAST 20 KM/H BECOMING LIGHT LATE THIS EVENING. LOW PLUS 2 WITH RISK OF FROST. SUNDAY..MAINLY SUNNY. HIGH 14. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW 6. ST. THOMAS - AYLMER - EASTERN ELGIN COUNTY. TONIGHT..CLOUDY. LOW PLUS 3. SUNDAY..CLEARING IN THE MORNING. WIND EAST 20 KM/H BECOMING LIGHT IN THE AFTERNOON. HIGH 15. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW 7. LONDON - PARKHILL - EASTERN MIDDLESEX COUNTY. TONIGHT..CLOUDY. LOW PLUS 1. SUNDAY..CLEARING IN THE MORNING. WIND EAST 20 KM/H BECOMING LIGHT IN THE AFTERNOON. HIGH 16. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW 6. SIMCOE - DELHI - NORFOLK. TONIGHT..CLOUDY. WIND NORTHEAST 20 KM/H BECOMING LIGHT LATE THIS EVENING. LOW PLUS 3. SUNDAY..MAINLY CLOUDY. CLEARING LATE IN THE MORNING. WIND EAST 20 KM/H BECOMING LIGHT IN THE AFTERNOON. HIGH 15. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW 6. DUNNVILLE - CALEDONIA - HALDIMAND. TONIGHT..CLOUDY. FOG PATCHES DEVELOPING OVERNIGHT. WIND NORTHEAST 20 KM/H GUSTING TO 40 BECOMING LIGHT LATE THIS EVENING. LOW PLUS 3. SUNDAY..CLEARING. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 14. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW 6. WOODSTOCK - TILLSONBURG - OXFORD COUNTY. TONIGHT..OVERCAST. LOW PLUS 1. SUNDAY..CLEARING IN THE MORNING. WIND EAST 20 KM/H BECOMING LIGHT IN THE AFTERNOON. HIGH 15. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 5. BRANTFORD - COUNTY OF BRANT. TONIGHT..CLOUDY. WIND NORTHEAST 20 KM/H BECOMING LIGHT THIS EVENING. LOW PLUS 1. SUNDAY..MAINLY CLOUDY. CLEARING LATE IN THE MORNING. WIND EAST 20 KM/H BECOMING LIGHT IN THE AFTERNOON. HIGH 14. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 5. NIAGARA FALLS - WELLAND - SOUTHERN NIAGARA REGION. TONIGHT..CLOUDY. FOG PATCHES DEVELOPING OVERNIGHT. WIND NORTH 20 KM/H BECOMING LIGHT THIS EVENING. LOW PLUS 3. SUNDAY..CLOUDY. CLEARING NEAR NOON. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 15. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 5. ST. CATHARINES - GRIMSBY - NORTHERN NIAGARA REGION. TONIGHT..CLOUDY. FOG PATCHES DEVELOPING OVERNIGHT. WIND NORTHEAST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW PLUS 3. SUNDAY..CLOUDY. BECOMING A MIX OF SUN AND CLOUD NEAR NOON. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 13. UV INDEX 6 OR HIGH. SUNDAY NIGHT..A FEW CLOUDS. LOW 6. CITY OF HAMILTON. TONIGHT..CLOUDY. FOG PATCHES DEVELOPING OVERNIGHT. WIND NORTHEAST 20 KM/H GUSTING TO 40 BECOMING LIGHT LATE THIS EVENING. LOW PLUS 3. SUNDAY..CLEARING. FOG PATCHES DISSIPATING IN THE MORNING. WIND NORTHEAST 20 KM/H BECOMING LIGHT LATE IN THE MORNING. HIGH 13. UV INDEX 6 OR HIGH. SUNDAY NIGHT..A FEW CLOUDS. LOW 6. BURLINGTON - OAKVILLE. TONIGHT..MAINLY CLOUDY. WIND NORTHEAST 20 KM/H GUSTING TO 40 BECOMING LIGHT LATE THIS EVENING. LOW PLUS 3. SUNDAY..A MIX OF SUN AND CLOUD. HIGH 13. UV INDEX 6 OR HIGH. SUNDAY NIGHT..A FEW CLOUDS. LOW PLUS 5. HALTON HILLS - MILTON. TONIGHT..CLOUDY. BECOMING PARTLY CLOUDY LATE THIS EVENING. WIND NORTHEAST 20 KM/H BECOMING LIGHT THIS EVENING. LOW PLUS 1. SUNDAY..SUNNY. HIGH 14. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 5. MISSISSAUGA - BRAMPTON. TONIGHT..CLOUDY. CLEARING LATE THIS EVENING. WIND NORTHEAST 20 KM/H BECOMING LIGHT THIS EVENING. LOW PLUS 1. SUNDAY..MAINLY SUNNY. HIGH 14. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 5. CALEDON. TONIGHT..MAINLY CLOUDY. CLEARING NEAR MIDNIGHT. LOW ZERO. SUNDAY..SUNNY. HIGH 14. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 4. VAUGHAN - RICHMOND HILL - MARKHAM. TONIGHT..CLEARING. WIND NORTHEAST 20 KM/H BECOMING LIGHT THIS EVENING. LOW PLUS 1. SUNDAY..SUNNY. HIGH 15. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 4. NEWMARKET - GEORGINA - NORTHERN YORK REGION. TONIGHT..CLEARING LATE THIS EVENING. LOW MINUS 1. SUNDAY..SUNNY. HIGH 15. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 4. PICKERING - OSHAWA - SOUTHERN DURHAM REGION. TONIGHT..CLOUDY. BECOMING PARTLY CLOUDY THIS EVENING. LOW PLUS 1. SUNDAY..MAINLY SUNNY. HIGH 14. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 4. UXBRIDGE - BEAVERTON - NORTHERN DURHAM REGION. TONIGHT..CLEARING THIS EVENING. WIND NORTHEAST 20 KM/H BECOMING LIGHT THIS EVENING. LOW MINUS 2. WIND CHILL MINUS 4 OVERNIGHT. SUNDAY..SUNNY. HIGH 15. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 4. STRATFORD - MITCHELL - SOUTHERN PERTH COUNTY. TONIGHT..CLOUDY. BECOMING PARTLY CLOUDY AFTER MIDNIGHT. LOW ZERO. SUNDAY..SUNNY. WIND EAST 20 KM/H BECOMING LIGHT IN THE AFTERNOON. HIGH 15. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 5. LISTOWEL - MILVERTON - NORTHERN PERTH COUNTY. TONIGHT..CLOUDY. CLEARING AFTER MIDNIGHT. LOW ZERO. SUNDAY..SUNNY. WIND EAST 20 KM/H BECOMING LIGHT LATE IN THE MORNING. HIGH 15. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. WIND BECOMING SOUTHEAST 20 KM/H BEFORE MORNING. LOW PLUS 5. KITCHENER - CAMBRIDGE - REGION OF WATERLOO. TONIGHT..CLOUDY. BECOMING PARTLY CLOUDY NEAR MIDNIGHT. LOW ZERO. SUNDAY..SUNNY. WIND EAST 20 KM/H BECOMING LIGHT LATE IN THE MORNING. HIGH 15. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 5. GUELPH - ERIN - SOUTHERN WELLINGTON COUNTY. TONIGHT..CLOUDY. BECOMING PARTLY CLOUDY NEAR MIDNIGHT. WIND NORTHEAST 20 KM/H BECOMING LIGHT THIS EVENING. LOW ZERO. SUNDAY..SUNNY. WIND EAST 20 KM/H BECOMING LIGHT IN THE AFTERNOON. HIGH 15. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 5. MOUNT FOREST - ARTHUR - NORTHERN WELLINGTON COUNTY. TONIGHT..MAINLY CLOUDY. CLEARING AFTER MIDNIGHT. LOW ZERO. SUNDAY..SUNNY. WIND EAST 20 KM/H BECOMING LIGHT LATE IN THE MORNING. HIGH 15. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 5. ORANGEVILLE - GRAND VALLEY - SOUTHERN DUFFERIN COUNTY. TONIGHT..CLEARING. LOW MINUS 1. SUNDAY..SUNNY. HIGH 14. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 4. SHELBURNE - MANSFIELD - NORTHERN DUFFERIN COUNTY. TONIGHT..CLOUDY. 30 PERCENT CHANCE OF SHOWERS OR DRIZZLE EARLY THIS EVENING. CLEARING OVERNIGHT. LOW MINUS 1. SUNDAY..SUNNY. HIGH 14. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 4. INNISFIL - NEW TECUMSETH - ANGUS. TONIGHT..CLEARING LATE THIS EVENING. WIND UP TO 15 KM/H. LOW MINUS 2. WIND CHILL MINUS 4 OVERNIGHT. SUNDAY..SUNNY. HIGH 15. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 4. BARRIE - COLLINGWOOD - HILLSDALE. TONIGHT..CLEARING THIS EVENING. WIND UP TO 15 KM/H. LOW MINUS 2. WIND CHILL MINUS 5 OVERNIGHT. SUNDAY..SUNNY. HIGH 14. UV INDEX 7 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 3. ORILLIA - LAGOON CITY - WASHAGO. TONIGHT..CLEARING THIS EVENING. WIND UP TO 15 KM/H. LOW MINUS 2. WIND CHILL MINUS 6 OVERNIGHT. SUNDAY..SUNNY. HIGH 14. UV INDEX 7 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 3. COBOURG - COLBORNE - WESTERN NORTHUMBERLAND COUNTY. TONIGHT..CLOUDY. BECOMING PARTLY CLOUDY THIS EVENING. LOW PLUS 1. SUNDAY..SUNNY. HIGH 14. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 4. BELLEVILLE - QUINTE WEST - EASTERN NORTHUMBERLAND COUNTY. TONIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS OR DRIZZLE EARLY THIS EVENING THEN PARTLY CLOUDY. LOW ZERO. SUNDAY..SUNNY. HIGH 15. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 4. PICTON - SANDBANKS PARK. TONIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS OR DRIZZLE EARLY THIS EVENING THEN PARTLY CLOUDY. LOW PLUS 1. SUNDAY..SUNNY. HIGH 14. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 4. NAPANEE - CONSECON. TONIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS OR DRIZZLE EARLY THIS EVENING THEN PARTLY CLOUDY. LOW ZERO. SUNDAY..SUNNY. HIGH 15. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 4. KINGSTON - ODESSA - FRONTENAC ISLANDS. TONIGHT..CLOUDY. BECOMING PARTLY CLOUDY THIS EVENING. LOW PLUS 1. SUNDAY..SUNNY. HIGH 14. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 4. LINDSAY - SOUTHERN KAWARTHA LAKES. TONIGHT..CLEARING THIS EVENING. WIND UP TO 15 KM/H. LOW MINUS 2. WIND CHILL MINUS 4 OVERNIGHT. SUNDAY..SUNNY. HIGH 15. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 3. FENELON FALLS - BALSAM LAKE PARK - NORTHERN KAWARTHA LAKES. TONIGHT..CLEARING LATE THIS EVENING. WIND UP TO 15 KM/H. LOW MINUS 2. WIND CHILL MINUS 6 OVERNIGHT. SUNDAY..SUNNY. HIGH 16. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 3. PETERBOROUGH CITY - LAKEFIELD - SOUTHERN PETERBOROUGH COUNTY. TONIGHT..CLEARING LATE THIS EVENING. WIND UP TO 15 KM/H. LOW MINUS 2. WIND CHILL MINUS 4 OVERNIGHT. SUNDAY..SUNNY. HIGH 16. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 3. APSLEY - WOODVIEW - NORTHERN PETERBOROUGH COUNTY. TONIGHT..CLEARING THIS EVENING. WIND UP TO 15 KM/H. LOW MINUS 2. WIND CHILL MINUS 6 OVERNIGHT. SUNDAY..SUNNY. HIGH 16. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 3. STIRLING - TWEED - MADOC. TONIGHT..CLEARING THIS EVENING. LOW MINUS 1. SUNDAY..SUNNY. WIND EAST 20 KM/H BECOMING LIGHT LATE IN THE MORNING. HIGH 16. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 4. TAMWORTH - SYDENHAM - SOUTH FRONTENAC. TONIGHT..MAINLY CLOUDY. CLEARING LATE THIS EVENING. LOW PLUS 1. SUNDAY..SUNNY. HIGH 16. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 4. KALADAR - BANNOCKBURN - BON ECHO PARK. TONIGHT..CLEARING LATE THIS EVENING. WIND UP TO 15 KM/H. LOW MINUS 2. WIND CHILL MINUS 6 OVERNIGHT. SUNDAY..SUNNY. WIND NORTHEAST 20 KM/H BECOMING LIGHT LATE IN THE MORNING. HIGH 16. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. LOW PLUS 3. REMAINDER UNCHANGED. END