753  
FPCN11 CWTO 181916  
FORECASTS FOR SOUTHERN ONTARIO AND THE NATIONAL CAPITAL REGION ISSUED  
BY ENVIRONMENT CANADA AT 3.30 PM EDT SATURDAY 18 MAY 2013 FOR TONIGHT  
SUNDAY AND SUNDAY NIGHT.  
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5.00 AM SUNDAY.  
 
CITY OF TORONTO.  
TONIGHT..A FEW CLOUDS. WIND EAST 20 KM/H BECOMING LIGHT THIS EVENING.  
LOW 13.  
SUNDAY..A MIX OF SUN AND CLOUD. HIGH 25. UV INDEX 8 OR VERY HIGH.  
SUNDAY NIGHT..PARTLY CLOUDY. LOW 15.  
 
WINDSOR - ESSEX - CHATHAM-KENT.  
TONIGHT..A FEW CLOUDS. WIND EAST 20 KM/H BECOMING LIGHT EARLY THIS  
EVENING. LOW 13.  
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE  
AFTERNOON WITH RISK OF THUNDERSTORMS. WIND BECOMING SOUTH 20 KM/H IN  
THE AFTERNOON. HIGH 26. UV INDEX 8 OR VERY HIGH.  
SUNDAY NIGHT..A FEW CLOUDS. WIND SOUTH 20 KM/H BECOMING LIGHT IN THE  
EVENING. LOW 15.  
 
SARNIA - LAMBTON.  
TONIGHT..PARTLY CLOUDY. WIND EAST 20 KM/H BECOMING LIGHT EARLY THIS  
EVENING. LOW 12.  
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE  
AFTERNOON WITH RISK OF THUNDERSTORMS. WIND BECOMING SOUTH 20 KM/H IN  
THE MORNING. HIGH 25. UV INDEX 8 OR VERY HIGH.  
SUNDAY NIGHT..PARTLY CLOUDY. WIND SOUTH 20 KM/H BECOMING LIGHT IN THE  
EVENING. LOW 15.  
 
ELGIN  
LONDON - MIDDLESEX  
SIMCOE - DELHI - NORFOLK.  
TONIGHT..PARTLY CLOUDY. WIND EAST 20 KM/H BECOMING LIGHT EARLY THIS  
EVENING. LOW 12.  
SUNDAY..INCREASING CLOUDINESS. 30 PERCENT CHANCE OF SHOWERS IN THE  
AFTERNOON WITH RISK OF THUNDERSTORMS. HIGH 25. UV INDEX 3 OR  
MODERATE.  
SUNDAY NIGHT..CLOUDY. CLEARING OVERNIGHT. LOW 16.  
 
DUNNVILLE - CALEDONIA - HALDIMAND  
NIAGARA FALLS - WELLAND - SOUTHERN NIAGARA REGION.  
TONIGHT..PARTLY CLOUDY. WIND NORTHEAST 20 KM/H BECOMING LIGHT THIS  
EVENING. LOW 11.  
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE  
AFTERNOON WITH RISK OF THUNDERSTORMS. WIND BECOMING SOUTH 20 KM/H  
LATE IN THE AFTERNOON. HIGH 19. UV INDEX 8 OR VERY HIGH.  
SUNDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN  
THE EVENING. WIND SOUTH 20 KM/H. LOW 16.  
 
OXFORD - BRANT.  
TONIGHT..PARTLY CLOUDY. WIND EAST 20 KM/H BECOMING LIGHT THIS  
EVENING. LOW 11.  
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE  
AFTERNOON WITH RISK OF THUNDERSTORMS. WIND BECOMING SOUTH 20 KM/H  
LATE IN THE MORNING. HIGH 25. UV INDEX 8 OR VERY HIGH.  
SUNDAY NIGHT..PARTLY CLOUDY. LOW 16.  
 
ST. CATHARINES - GRIMSBY - NORTHERN NIAGARA REGION  
CITY OF HAMILTON.  
TONIGHT..PARTLY CLOUDY. WIND NORTHEAST 20 KM/H BECOMING LIGHT THIS  
EVENING. LOW 11.  
SUNDAY..INCREASING CLOUDINESS EARLY IN THE MORNING. 30 PERCENT CHANCE  
OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. HIGH 25. UV  
INDEX 6 OR HIGH.  
SUNDAY NIGHT..CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE  
EVENING WITH RISK OF A THUNDERSTORM. LOW 15.  
 
HALTON - PEEL.  
TONIGHT..A FEW CLOUDS. WIND EAST 20 KM/H BECOMING LIGHT THIS EVENING.  
LOW 12.  
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE  
AFTERNOON. HIGH 25. UV INDEX 8 OR VERY HIGH.  
SUNDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN  
THE EVENING. LOW 15.  
 
YORK - DURHAM.  
TONIGHT..A FEW CLOUDS. WIND EAST 20 KM/H BECOMING LIGHT EARLY THIS  
EVENING. LOW 12.  
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE  
AFTERNOON. HIGH 25. UV INDEX 8 OR VERY HIGH.  
SUNDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN  
THE EVENING. LOW 15.  
 
HURON - PERTH.  
TONIGHT..PARTLY CLOUDY. WIND EAST 20 KM/H BECOMING LIGHT THIS  
EVENING. LOW 12.  
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE  
AFTERNOON WITH RISK OF A THUNDERSTORM. HIGH 24. UV INDEX 8 OR VERY  
HIGH.  
SUNDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN  
THE EVENING WITH RISK OF A THUNDERSTORM. LOW 16.  
 
WATERLOO - WELLINGTON.  
TONIGHT..PARTLY CLOUDY. WIND EAST 20 KM/H BECOMING LIGHT THIS  
EVENING. LOW 10.  
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE  
AFTERNOON WITH RISK OF A THUNDERSTORM. HIGH 24. UV INDEX 8 OR VERY  
HIGH.  
SUNDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN  
THE EVENING. LOW 16.  
 
DUFFERIN - INNISFIL.  
TONIGHT..A FEW CLOUDS. WIND EAST 20 KM/H BECOMING LIGHT THIS EVENING.  
LOW 10.  
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE  
AFTERNOON WITH RISK OF A THUNDERSTORM. WIND BECOMING SOUTH 20 KM/H  
LATE IN THE MORNING. HIGH 26. UV INDEX 8 OR VERY HIGH.  
SUNDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN  
THE EVENING. WIND SOUTH 20 KM/H BECOMING LIGHT IN THE EVENING.  
LOW 15.  
 
GREY - BRUCE.  
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS  
EVENING. WIND NORTHEAST 20 KM/H BECOMING LIGHT EARLY THIS EVENING.  
LOW 10.  
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE  
AFTERNOON WITH RISK OF THUNDERSTORMS. HIGH 23. UV INDEX 8 OR VERY  
HIGH.  
SUNDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN  
THE EVENING WITH RISK OF THUNDERSTORMS. LOW 15.  
 
BARRIE - ORILLIA - MIDLAND.  
TONIGHT..A FEW CLOUDS. LOW 10.  
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE  
AFTERNOON WITH RISK OF A THUNDERSTORM. HIGH 27. UV INDEX 8 OR VERY  
HIGH.  
SUNDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN  
THE EVENING WITH RISK OF A THUNDERSTORM. LOW 14.  
 
BELLEVILLE - QUINTE - NORTHUMBERLAND  
KINGSTON - PRINCE EDWARD.  
TONIGHT..PARTLY CLOUDY. LOW 11.  
SUNDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 21. UV  
INDEX 6 OR HIGH.  
SUNDAY NIGHT..CLEARING LATE IN THE EVENING. WIND BECOMING SOUTH  
20 KM/H NEAR MIDNIGHT. LOW 15.  
 
PETERBOROUGH - KAWARTHA LAKES.  
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS BEFORE MORNING. LOW 10.  
SUNDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE MORNING  
AND AFTERNOON. HIGH 24. UV INDEX 6 OR HIGH.  
SUNDAY NIGHT..MAINLY CLOUDY. LOW 15.  
 
STIRLING - TWEED - SOUTH FRONTENAC.  
TONIGHT..A FEW CLOUDS. LOW 9.  
SUNDAY..MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. HIGH 23. UV  
INDEX 6 OR HIGH.  
SUNDAY NIGHT..PARTLY CLOUDY. LOW 14.  
 
BANCROFT - BON ECHO PARK.  
TONIGHT..A FEW CLOUDS. LOW 6.  
SUNDAY..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE MORNING  
AND AFTERNOON. HIGH 22. UV INDEX 6 OR HIGH.  
SUNDAY NIGHT..PARTLY CLOUDY. LOW 14.  
 
BROCKVILLE - LEEDS AND GRENVILLE  
CORNWALL - MORRISBURG.  
TONIGHT..A FEW CLOUDS. LOW 8.  
SUNDAY..INCREASING CLOUDINESS. 30 PERCENT CHANCE OF SHOWERS LATE IN  
THE AFTERNOON. HIGH 22. UV INDEX 6 OR HIGH.  
SUNDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE  
EVENING. LOW 15.  
 
CITY OF OTTAWA  
GATINEAU  
PRESCOTT AND RUSSELL.  
TONIGHT..A FEW CLOUDS. LOW 9.  
SUNDAY..INCREASING CLOUDINESS. 60 PERCENT CHANCE OF SHOWERS IN THE  
AFTERNOON. HIGH 20. UV INDEX 6 OR HIGH.  
SUNDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS.  
LOW 15.  
 
SMITHS FALLS - LANARK - SHARBOT LAKE.  
TONIGHT..A FEW CLOUDS. LOW 8.  
SUNDAY..INCREASING CLOUDINESS EARLY IN THE MORNING. 40 PERCENT CHANCE  
OF SHOWERS IN THE MORNING AND AFTERNOON. HIGH 20. UV INDEX 6 OR  
HIGH.  
SUNDAY NIGHT..PARTLY CLOUDY. LOW 15.  
 
PARRY SOUND - MUSKOKA  
BURK'S FALLS - BAYFIELD INLET.  
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS BEFORE MORNING. LOW 10.  
SUNDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON.  
HIGH 26. UV INDEX 6 OR HIGH.  
SUNDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE  
EVENING. LOW 14.  
 
HALIBURTON.  
TONIGHT..A FEW CLOUDS. LOW 7.  
SUNDAY..INCREASING CLOUDINESS EARLY IN THE MORNING. 30 PERCENT CHANCE  
OF SHOWERS. HIGH 23. UV INDEX 6 OR HIGH.  
SUNDAY NIGHT..A FEW CLOUDS. LOW 13.  
 
RENFREW - PEMBROKE - BARRY'S BAY  
ALGONQUIN.  
TONIGHT..A FEW CLOUDS. LOW PLUS 5.  
SUNDAY..INCREASING CLOUDINESS EARLY IN THE MORNING. 60 PERCENT CHANCE  
OF SHOWERS LATE IN THE MORNING AND IN THE AFTERNOON. HIGH 23. UV  
INDEX 5 OR MODERATE.  
SUNDAY NIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS.  
LOW 12.  
 
END  
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