FPCN11 CWTO 202111 AAA UPDATED FORECASTS FOR SOUTHERN ONTARIO AND THE NATIONAL CAPITAL REGION ISSUED BY ENVIRONMENT CANADA AT 5:10 P.M. EDT MONDAY 20 APRIL 2026 FOR TONIGHT TUESDAY AND TUESDAY NIGHT. THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. EDT TUESDAY. CITY OF TORONTO. TONIGHT..A FEW CLOUDS. WIND SOUTH 20 KM/H BECOMING LIGHT THIS EVENING. LOW MINUS 2. WIND CHILL MINUS 4 OVERNIGHT. TUESDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. WIND BECOMING SOUTH 20 KM/H GUSTING TO 40 NEAR NOON. HIGH 10. UV INDEX 5 OR MODERATE. TUESDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING. WIND SOUTH 20 KM/H BECOMING LIGHT IN THE EVENING. LOW PLUS 4. WINDSOR - LEAMINGTON - ESSEX COUNTY. TONIGHT..CLEAR. BECOMING PARTLY CLOUDY BEFORE MORNING. WIND BECOMING SOUTH 20 KM/H OVERNIGHT. LOW PLUS 2. TUESDAY..CLEARING. WIND SOUTH 30 KM/H GUSTING TO 50. HIGH 21. UV INDEX 7 OR HIGH. TUESDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. CLEARING BEFORE MORNING. LOW 10. CHATHAM-KENT - RONDEAU PARK. TONIGHT..CLEAR. WIND BECOMING SOUTH 20 KM/H OVERNIGHT. LOW PLUS 1. TUESDAY..MAINLY CLOUDY. CLEARING EARLY IN THE AFTERNOON. WIND SOUTH 30 KM/H GUSTING TO 50. HIGH 18. UV INDEX 7 OR HIGH. TUESDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. LOW 7. SARNIA - PETROLIA - WESTERN LAMBTON COUNTY. TONIGHT..CLEAR. LOW ZERO. TUESDAY..MAINLY CLOUDY. CLEARING LATE IN THE MORNING. WIND SOUTH 30 KM/H GUSTING TO 50. HIGH 18. UV INDEX 7 OR HIGH. TUESDAY NIGHT..A FEW CLOUDS. LOW 6. WATFORD - PINERY PARK - EASTERN LAMBTON COUNTY. TONIGHT..CLEAR. LOW ZERO. TUESDAY..A MIX OF SUN AND CLOUD. WIND SOUTH 30 KM/H GUSTING TO 50. HIGH 18. UV INDEX 6 OR HIGH. TUESDAY NIGHT..MAINLY CLOUDY. LOW 6. RODNEY - SHEDDEN - WESTERN ELGIN COUNTY. TONIGHT..CLEAR. WIND BECOMING SOUTH 20 KM/H OVERNIGHT. LOW ZERO. TUESDAY..MAINLY CLOUDY. CLEARING NEAR NOON. WIND SOUTH 30 KM/H GUSTING TO 50. HIGH 17. UV INDEX 6 OR HIGH. TUESDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. LOW 6. ST. THOMAS - AYLMER - EASTERN ELGIN COUNTY. TONIGHT..CLEAR. LOW ZERO. TUESDAY..MAINLY CLOUDY. CLEARING IN THE AFTERNOON. WIND SOUTH 30 KM/H GUSTING TO 50. HIGH 17. UV INDEX 6 OR HIGH. TUESDAY NIGHT..CLEAR. BECOMING PARTLY CLOUDY IN THE EVENING. LOW 6. STRATHROY - KOMOKA - WESTERN MIDDLESEX COUNTY. TONIGHT..CLEAR. WIND UP TO 15 KM/H. LOW MINUS 2. WIND CHILL MINUS 5 OVERNIGHT. TUESDAY..MAINLY CLOUDY. CLEARING NEAR NOON. WIND SOUTH 30 KM/H GUSTING TO 50. HIGH 17. UV INDEX 6 OR HIGH. TUESDAY NIGHT..PARTLY CLOUDY. LOW PLUS 5. LONDON - PARKHILL - EASTERN MIDDLESEX COUNTY. TONIGHT..CLEAR. WIND UP TO 15 KM/H. LOW MINUS 2. WIND CHILL MINUS 5 OVERNIGHT. TUESDAY..A MIX OF SUN AND CLOUD. CLEARING IN THE AFTERNOON. WIND SOUTH 30 KM/H GUSTING TO 50. HIGH 15. UV INDEX 6 OR HIGH. TUESDAY NIGHT..CLEAR. BECOMING PARTLY CLOUDY IN THE EVENING. LOW PLUS 5. SIMCOE - DELHI - NORFOLK. TONIGHT..CLEARING THIS EVENING. WIND UP TO 15 KM/H. LOW MINUS 2. WIND CHILL MINUS 6 OVERNIGHT. TUESDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. WIND BECOMING SOUTH 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 13. UV INDEX 6 OR HIGH. TUESDAY NIGHT..PARTLY CLOUDY. LOW PLUS 4. DUNNVILLE - CALEDONIA - HALDIMAND. TONIGHT..CLEARING THIS EVENING. LOW MINUS 1. TUESDAY..MAINLY SUNNY. INCREASING CLOUDINESS IN THE MORNING THEN 30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. WIND BECOMING SOUTH 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 11. UV INDEX 5 OR MODERATE. TUESDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING. WIND SOUTH 20 KM/H BECOMING LIGHT IN THE EVENING. LOW PLUS 5. WOODSTOCK - TILLSONBURG - OXFORD COUNTY. TONIGHT..CLEARING EARLY THIS EVENING. WIND UP TO 15 KM/H. LOW MINUS 4. WIND CHILL MINUS 8 OVERNIGHT. TUESDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. WIND BECOMING SOUTH 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 13. WIND CHILL MINUS 7 IN THE MORNING. UV INDEX 6 OR HIGH. TUESDAY NIGHT..CLEAR. BECOMING PARTLY CLOUDY IN THE EVENING. LOW PLUS 3. BRANTFORD - COUNTY OF BRANT. TONIGHT..CLEARING THIS EVENING. WIND UP TO 15 KM/H. LOW MINUS 4. WIND CHILL MINUS 8 OVERNIGHT. TUESDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. WIND BECOMING SOUTH 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 13. WIND CHILL MINUS 7 IN THE MORNING. UV INDEX 5 OR MODERATE. TUESDAY NIGHT..INCREASING CLOUDINESS EARLY IN THE EVENING. LOW PLUS 3. NIAGARA FALLS - WELLAND - SOUTHERN NIAGARA REGION. TONIGHT..PARTLY CLOUDY. BECOMING CLEAR THIS EVENING. LOW MINUS 1. TUESDAY..MAINLY SUNNY. INCREASING CLOUDINESS LATE IN THE MORNING THEN 30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. WIND BECOMING SOUTH 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 11. UV INDEX 6 OR HIGH. TUESDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING. WIND SOUTH 20 KM/H BECOMING LIGHT IN THE EVENING. LOW PLUS 5. ST. CATHARINES - GRIMSBY - NORTHERN NIAGARA REGION. TONIGHT..PARTLY CLOUDY. BECOMING CLEAR THIS EVENING. LOW MINUS 1. TUESDAY..MAINLY SUNNY. INCREASING CLOUDINESS LATE IN THE MORNING THEN 30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. WIND BECOMING SOUTH 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 11. UV INDEX 6 OR HIGH. TUESDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING. WIND SOUTH 20 KM/H BECOMING LIGHT IN THE EVENING. LOW PLUS 5. CITY OF HAMILTON. TONIGHT..CLEARING. WIND WEST 20 KM/H BECOMING LIGHT EARLY THIS EVENING. LOW MINUS 3. WIND CHILL MINUS 7 OVERNIGHT. TUESDAY..INCREASING CLOUDINESS. 30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. WIND BECOMING SOUTH 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 12. UV INDEX 5 OR MODERATE. TUESDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING. WIND SOUTH 20 KM/H BECOMING LIGHT IN THE EVENING. LOW PLUS 4. BURLINGTON - OAKVILLE. TONIGHT..PARTLY CLOUDY. BECOMING CLEAR THIS EVENING. WIND UP TO 15 KM/H. LOW MINUS 3. WIND CHILL MINUS 6 OVERNIGHT. TUESDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. WIND BECOMING SOUTH 20 KM/H GUSTING TO 40 NEAR NOON. HIGH 11. WIND CHILL MINUS 6 IN THE MORNING. UV INDEX 5 OR MODERATE. TUESDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING. WIND SOUTH 20 KM/H BECOMING LIGHT IN THE EVENING. LOW PLUS 3. HALTON HILLS - MILTON. TONIGHT..A FEW CLOUDS. WIND UP TO 15 KM/H. LOW MINUS 3. WIND CHILL MINUS 6 OVERNIGHT. TUESDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. WIND BECOMING SOUTH 20 KM/H GUSTING TO 40 NEAR NOON. HIGH 11. WIND CHILL MINUS 6 IN THE MORNING. UV INDEX 5 OR MODERATE. TUESDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING. WIND SOUTH 20 KM/H BECOMING LIGHT IN THE EVENING. LOW PLUS 3. MISSISSAUGA - BRAMPTON. TONIGHT..A FEW CLOUDS. WIND UP TO 15 KM/H. LOW MINUS 3. WIND CHILL MINUS 6 OVERNIGHT. TUESDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. WIND BECOMING SOUTH 20 KM/H GUSTING TO 40 NEAR NOON. HIGH 11. WIND CHILL MINUS 6 IN THE MORNING. UV INDEX 5 OR MODERATE. TUESDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING. WIND SOUTH 20 KM/H BECOMING LIGHT IN THE EVENING. LOW PLUS 3. CALEDON. TONIGHT..CLEAR. WIND UP TO 15 KM/H. LOW MINUS 4. WIND CHILL MINUS 9 OVERNIGHT. TUESDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF FLURRIES OR RAIN SHOWERS LATE IN THE MORNING AND EARLY AFTERNOON THEN 30 PERCENT CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WIND BECOMING SOUTH 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 9. WIND CHILL MINUS 9 IN THE MORNING. UV INDEX 5 OR MODERATE. TUESDAY NIGHT..PARTLY CLOUDY. WIND SOUTH 20 KM/H BECOMING LIGHT IN THE EVENING. LOW PLUS 1. VAUGHAN - RICHMOND HILL - MARKHAM. TONIGHT..PARTLY CLOUDY. BECOMING CLEAR THIS EVENING. WIND UP TO 15 KM/H. LOW MINUS 4. WIND CHILL MINUS 7 OVERNIGHT. TUESDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. WIND BECOMING SOUTH 20 KM/H GUSTING TO 40 NEAR NOON. HIGH 9. WIND CHILL MINUS 7 IN THE MORNING. UV INDEX 5 OR MODERATE. TUESDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING. WIND SOUTH 20 KM/H BECOMING LIGHT IN THE EVENING. LOW PLUS 3. NEWMARKET - GEORGINA - NORTHERN YORK REGION. TONIGHT..CLEAR. BECOMING PARTLY CLOUDY BEFORE MORNING. WIND NORTHWEST 20 KM/H BECOMING LIGHT EARLY THIS EVENING. LOW MINUS 4. WIND CHILL MINUS 7 THIS EVENING. TUESDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. WIND BECOMING SOUTH 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 8. WIND CHILL MINUS 7 IN THE MORNING. UV INDEX 5 OR MODERATE. TUESDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING. WIND SOUTH 20 KM/H BECOMING LIGHT IN THE EVENING. LOW PLUS 1. PICKERING - OSHAWA - SOUTHERN DURHAM REGION. TONIGHT..A FEW CLOUDS. WIND NORTHWEST 20 KM/H BECOMING LIGHT EARLY THIS EVENING. LOW MINUS 4. WIND CHILL MINUS 7 OVERNIGHT. TUESDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. WIND BECOMING SOUTH 20 KM/H GUSTING TO 40 NEAR NOON. HIGH 9. WIND CHILL MINUS 7 IN THE MORNING. UV INDEX 6 OR HIGH. TUESDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING. WIND SOUTH 20 KM/H BECOMING LIGHT IN THE EVENING. LOW PLUS 3. UXBRIDGE - BEAVERTON - NORTHERN DURHAM REGION. TONIGHT..CLEAR. BECOMING PARTLY CLOUDY BEFORE MORNING. WIND WEST 20 KM/H BECOMING LIGHT EARLY THIS EVENING. LOW MINUS 4. WIND CHILL MINUS 7 THIS EVENING. TUESDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. WIND BECOMING SOUTH 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 8. WIND CHILL MINUS 7 IN THE MORNING. UV INDEX 5 OR MODERATE. TUESDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING. WIND SOUTH 20 KM/H BECOMING LIGHT IN THE EVENING. LOW PLUS 1. GODERICH - BLUEWATER - SOUTHERN HURON COUNTY. TONIGHT..CLEAR. BECOMING PARTLY CLOUDY AFTER MIDNIGHT. WIND UP TO 15 KM/H. LOW MINUS 3. WIND CHILL MINUS 7 OVERNIGHT. TUESDAY..A MIX OF SUN AND CLOUD. WIND BECOMING SOUTH 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 13. UV INDEX 6 OR HIGH. TUESDAY NIGHT..PARTLY CLOUDY. BECOMING CLEAR AFTER MIDNIGHT. WIND SOUTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW PLUS 2. WINGHAM - BLYTH - NORTHERN HURON COUNTY. TONIGHT..CLEAR. BECOMING PARTLY CLOUDY AFTER MIDNIGHT. WIND UP TO 15 KM/H. LOW MINUS 3. WIND CHILL MINUS 7 OVERNIGHT. TUESDAY..A MIX OF SUN AND CLOUD. WIND BECOMING SOUTH 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 13. UV INDEX 5 OR MODERATE. TUESDAY NIGHT..PARTLY CLOUDY. WIND SOUTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW PLUS 2. STRATFORD - MITCHELL - SOUTHERN PERTH COUNTY. TONIGHT..CLEAR. WIND UP TO 15 KM/H. LOW MINUS 3. WIND CHILL MINUS 7 OVERNIGHT. TUESDAY..MAINLY CLOUDY. CLEARING IN THE AFTERNOON. WIND BECOMING SOUTH 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 13. UV INDEX 5 OR MODERATE. TUESDAY NIGHT..A FEW CLOUDS. WIND SOUTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW PLUS 2. LISTOWEL - MILVERTON - NORTHERN PERTH COUNTY. TONIGHT..CLEAR. WIND UP TO 15 KM/H. LOW MINUS 3. WIND CHILL MINUS 7 OVERNIGHT. TUESDAY..A MIX OF SUN AND CLOUD. WIND BECOMING SOUTH 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 13. UV INDEX 5 OR MODERATE. TUESDAY NIGHT..A FEW CLOUDS. WIND SOUTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW PLUS 2. KITCHENER - CAMBRIDGE - REGION OF WATERLOO. TONIGHT..CLEARING THIS EVENING. WIND UP TO 15 KM/H. LOW MINUS 4. WIND CHILL MINUS 9 OVERNIGHT. TUESDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF FLURRIES OR RAIN SHOWERS LATE IN THE MORNING AND EARLY AFTERNOON THEN 30 PERCENT CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WIND BECOMING SOUTH 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 11. WIND CHILL MINUS 8 IN THE MORNING. UV INDEX 5 OR MODERATE. TUESDAY NIGHT..PARTLY CLOUDY. WIND SOUTH 20 KM/H BECOMING LIGHT IN THE EVENING. LOW PLUS 2. GUELPH - ERIN - SOUTHERN WELLINGTON COUNTY. TONIGHT..A FEW CLOUDS. WIND UP TO 15 KM/H. LOW MINUS 4. WIND CHILL MINUS 9 OVERNIGHT. TUESDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF FLURRIES OR RAIN SHOWERS LATE IN THE MORNING AND EARLY AFTERNOON THEN 30 PERCENT CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WIND BECOMING SOUTH 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 11. WIND CHILL MINUS 8 IN THE MORNING. UV INDEX 5 OR MODERATE. TUESDAY NIGHT..PARTLY CLOUDY. WIND SOUTH 20 KM/H BECOMING LIGHT IN THE EVENING. LOW PLUS 2. MOUNT FOREST - ARTHUR - NORTHERN WELLINGTON COUNTY. TONIGHT..A FEW CLOUDS. WIND UP TO 15 KM/H. LOW MINUS 4. WIND CHILL MINUS 9 OVERNIGHT. TUESDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF FLURRIES OR RAIN SHOWERS LATE IN THE MORNING AND EARLY AFTERNOON THEN 30 PERCENT CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WIND BECOMING SOUTH 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 11. WIND CHILL MINUS 8 IN THE MORNING. UV INDEX 5 OR MODERATE. TUESDAY NIGHT..PARTLY CLOUDY. WIND SOUTH 20 KM/H BECOMING LIGHT IN THE EVENING. LOW PLUS 2. ORANGEVILLE - GRAND VALLEY - SOUTHERN DUFFERIN COUNTY. TONIGHT..CLEAR. BECOMING PARTLY CLOUDY OVERNIGHT. WIND UP TO 15 KM/H. LOW MINUS 4. WIND CHILL MINUS 9 OVERNIGHT. TUESDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF FLURRIES OR RAIN SHOWERS LATE IN THE MORNING AND EARLY AFTERNOON THEN 30 PERCENT CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WIND BECOMING SOUTH 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 9. WIND CHILL MINUS 9 IN THE MORNING. UV INDEX 5 OR MODERATE. TUESDAY NIGHT..PARTLY CLOUDY. WIND SOUTH 20 KM/H BECOMING LIGHT IN THE EVENING. LOW PLUS 1. SHELBURNE - MANSFIELD - NORTHERN DUFFERIN COUNTY. TONIGHT..CLEAR. INCREASING CLOUDINESS OVERNIGHT. WIND UP TO 15 KM/H. LOW MINUS 4. WIND CHILL MINUS 9 OVERNIGHT. TUESDAY..A MIX OF SUN AND CLOUD. WIND BECOMING SOUTH 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 9. WIND CHILL MINUS 9 IN THE MORNING. UV INDEX 5 OR MODERATE. TUESDAY NIGHT..PARTLY CLOUDY. WIND SOUTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW PLUS 1. INNISFIL - NEW TECUMSETH - ANGUS. TONIGHT..CLEAR. BECOMING PARTLY CLOUDY OVERNIGHT. WIND UP TO 15 KM/H. LOW MINUS 4. WIND CHILL MINUS 7 OVERNIGHT. TUESDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. WIND BECOMING SOUTH 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 9. WIND CHILL MINUS 7 IN THE MORNING. UV INDEX 5 OR MODERATE. TUESDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING. WIND SOUTH 20 KM/H BECOMING LIGHT IN THE EVENING. LOW PLUS 1. SAUGEEN SHORES - KINCARDINE - SOUTHERN BRUCE COUNTY. TONIGHT..CLEAR. BECOMING PARTLY CLOUDY AFTER MIDNIGHT. WIND UP TO 15 KM/H. LOW MINUS 1 WITH TEMPERATURE RISING TO PLUS 3 BY MORNING. WIND CHILL MINUS 5 THIS EVENING. TUESDAY..A MIX OF SUN AND CLOUD. WIND BECOMING SOUTH 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 12. UV INDEX 6 OR HIGH. TUESDAY NIGHT..PARTLY CLOUDY. WIND SOUTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW PLUS 2. BRUCE PENINSULA - SAUBLE BEACH - TOBERMORY. TONIGHT..CLEAR. INCREASING CLOUDINESS NEAR MIDNIGHT. WIND UP TO 15 KM/H. LOW MINUS 1. WIND CHILL MINUS 3 THIS EVENING. TUESDAY..CLEARING IN THE MORNING. WIND BECOMING SOUTH 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 10. UV INDEX 6 OR HIGH. TUESDAY NIGHT..PARTLY CLOUDY. WIND SOUTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW PLUS 1. HANOVER - DUNDALK - SOUTHERN GREY COUNTY. TONIGHT..CLEAR. INCREASING CLOUDINESS AFTER MIDNIGHT. WIND UP TO 15 KM/H. LOW MINUS 4. WIND CHILL MINUS 9 OVERNIGHT. TUESDAY..MAINLY CLOUDY. WIND BECOMING SOUTH 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 10. WIND CHILL MINUS 7 IN THE MORNING. UV INDEX 4 OR MODERATE. TUESDAY NIGHT..PARTLY CLOUDY. WIND SOUTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW PLUS 1. OWEN SOUND - BLUE MOUNTAINS - NORTHERN GREY COUNTY. TONIGHT..CLEAR. INCREASING CLOUDINESS AFTER MIDNIGHT. WIND UP TO 15 KM/H. LOW MINUS 4. WIND CHILL MINUS 9 OVERNIGHT. TUESDAY..A MIX OF SUN AND CLOUD. WIND BECOMING SOUTH 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 10. WIND CHILL MINUS 7 IN THE MORNING. UV INDEX 6 OR HIGH. TUESDAY NIGHT..INCREASING CLOUDINESS EARLY IN THE EVENING. WIND SOUTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW PLUS 1. BARRIE - COLLINGWOOD - HILLSDALE. TONIGHT..CLEAR. INCREASING CLOUDINESS OVERNIGHT. WIND NORTHWEST 20 KM/H BECOMING LIGHT EARLY THIS EVENING. LOW MINUS 5. WIND CHILL MINUS 7 THIS EVENING. TUESDAY..MAINLY CLOUDY. WIND BECOMING SOUTH 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 10. WIND CHILL MINUS 7 IN THE MORNING. UV INDEX 5 OR MODERATE. TUESDAY NIGHT..MAINLY CLOUDY. LOW PLUS 1. MIDLAND - COLDWATER - ORR LAKE. TONIGHT..CLEAR. INCREASING CLOUDINESS AFTER MIDNIGHT. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT EARLY THIS EVENING. LOW MINUS 5. WIND CHILL MINUS 7 THIS EVENING. TUESDAY..MAINLY CLOUDY. WIND BECOMING SOUTH 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 10. WIND CHILL MINUS 7 IN THE MORNING. UV INDEX 4 OR MODERATE. TUESDAY NIGHT..MAINLY CLOUDY. LOW PLUS 1. ORILLIA - LAGOON CITY - WASHAGO. TONIGHT..CLEAR. BECOMING PARTLY CLOUDY OVERNIGHT. WIND NORTHWEST 20 KM/H BECOMING LIGHT EARLY THIS EVENING. LOW MINUS 5. WIND CHILL MINUS 7 THIS EVENING. TUESDAY..CLOUDY. WIND BECOMING SOUTH 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 10. WIND CHILL MINUS 7 IN THE MORNING. UV INDEX 4 OR MODERATE. TUESDAY NIGHT..MAINLY CLOUDY. LOW PLUS 1. REMAINDER UNCHANGED. END