685  
FPCN11 CWUL 180845  
FORECASTS FOR WESTERN QUEBEC ISSUED BY ENVIRONMENT CANADA AT  
5:00 A.M. EDT TUESDAY 18 AUGUST 2026 FOR TODAY AND WEDNESDAY.  
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 11:30 A.M. EDT.  
 
METRO MONTREAL - LAVAL.  
TODAY..A MIX OF SUN AND CLOUD. HIGH 26. HUMIDEX 31. UV INDEX 7 OR  
HIGH.  
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS BEFORE MORNING. LOW 17.  
WEDNESDAY..MAINLY CLOUDY. A FEW SHOWERS BEGINNING IN THE MORNING AND  
ENDING LATE IN THE AFTERNOON. RISK OF A THUNDERSTORM IN THE  
AFTERNOON. WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 NEAR NOON.  
HIGH 22. HUMIDEX 27. UV INDEX 3 OR MODERATE.  
 
VAUDREUIL - SOULANGES - HUNTINGDON.  
TODAY..A MIX OF SUN AND CLOUD. FOG PATCHES DISSIPATING THIS MORNING.  
HIGH 27. HUMIDEX 32. UV INDEX 7 OR HIGH.  
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS BEFORE MORNING. LOW 15.  
WEDNESDAY..MAINLY CLOUDY. A FEW SHOWERS BEGINNING IN THE MORNING AND  
ENDING LATE IN THE AFTERNOON. RISK OF A THUNDERSTORM IN THE  
AFTERNOON. WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 NEAR NOON.  
HIGH 22. HUMIDEX 28. UV INDEX 3 OR MODERATE.  
 
RICHELIEU VALLEY - SAINT-HYACINTHE.  
TODAY..A MIX OF SUN AND CLOUD. FOG PATCHES DISSIPATING THIS MORNING.  
HIGH 26. HUMIDEX 30. UV INDEX 7 OR HIGH.  
TONIGHT..CLEAR. BECOMING PARTLY CLOUDY OVERNIGHT. FOG PATCHES  
DEVELOPING OVERNIGHT. LOW 14.  
WEDNESDAY..CLOUDY. A FEW SHOWERS BEGINNING IN THE MORNING. RISK OF A  
THUNDERSTORM IN THE AFTERNOON. FOG PATCHES DISSIPATING IN THE  
MORNING. WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 NEAR NOON.  
HIGH 22. HUMIDEX 27. UV INDEX 3 OR MODERATE.  
 
LANAUDIERE.  
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS THIS  
AFTERNOON. FOG PATCHES DISSIPATING THIS MORNING. HIGH 26. HUMIDEX  
31. UV INDEX 7 OR HIGH.  
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS BEFORE MORNING. FOG  
PATCHES DEVELOPING OVERNIGHT. LOW 15.  
WEDNESDAY..MAINLY CLOUDY. A FEW SHOWERS BEGINNING IN THE MORNING AND  
ENDING LATE IN THE AFTERNOON. RISK OF A THUNDERSTORM IN THE  
AFTERNOON. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING  
SOUTHWEST 20 KM/H GUSTING TO 40 NEAR NOON. HIGH 22. HUMIDEX 27. UV  
INDEX 3 OR MODERATE.  
 
LACHUTE - SAINT-JEROME.  
TODAY..A MIX OF SUN AND CLOUD. FOG PATCHES DISSIPATING THIS MORNING.  
HIGH 25. HUMIDEX 31. UV INDEX 7 OR HIGH.  
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS BEFORE MORNING. FOG  
PATCHES DEVELOPING OVERNIGHT. LOW 14.  
WEDNESDAY..MAINLY CLOUDY. A FEW SHOWERS BEGINNING IN THE MORNING AND  
ENDING LATE IN THE AFTERNOON. RISK OF A THUNDERSTORM IN THE  
AFTERNOON. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING  
SOUTHWEST 20 KM/H GUSTING TO 40 NEAR NOON. HIGH 22. HUMIDEX 28. UV  
INDEX 3 OR MODERATE.  
 
LAURENTIANS.  
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS THIS  
AFTERNOON. FOG PATCHES DISSIPATING THIS MORNING. HIGH 24. HUMIDEX  
29. UV INDEX 7 OR HIGH.  
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT. FOG  
PATCHES DEVELOPING OVERNIGHT. LOW 14.  
WEDNESDAY..MAINLY CLOUDY. A FEW SHOWERS BEGINNING IN THE MORNING AND  
ENDING IN THE AFTERNOON THEN 40 PERCENT CHANCE OF SHOWERS LATER IN  
THE AFTERNOON. RISK OF A THUNDERSTORM IN THE AFTERNOON. FOG PATCHES  
DISSIPATING IN THE MORNING. HIGH 20. HUMIDEX 25. UV INDEX 5 OR  
MODERATE.  
 
MONT-TREMBLANT PARK - SAINT-MICHEL-DES-SAINTS.  
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS THIS  
AFTERNOON. FOG PATCHES DISSIPATING THIS MORNING. HIGH 23. HUMIDEX  
27. UV INDEX 7 OR HIGH.  
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT. FOG  
PATCHES DEVELOPING OVERNIGHT. LOW 13.  
WEDNESDAY..MAINLY CLOUDY. A FEW SHOWERS BEGINNING IN THE MORNING AND  
ENDING IN THE AFTERNOON THEN 40 PERCENT CHANCE OF SHOWERS LATER IN  
THE AFTERNOON. RISK OF A THUNDERSTORM IN THE AFTERNOON. FOG PATCHES  
DISSIPATING IN THE MORNING. HIGH 20. UV INDEX 3 OR MODERATE.  
 
MONT-LAURIER.  
TODAY..A MIX OF SUN AND CLOUD. FOG PATCHES DISSIPATING THIS MORNING.  
HIGH 24. HUMIDEX 29. UV INDEX 7 OR HIGH.  
TONIGHT..PARTLY CLOUDY. BECOMING CLOUDY AFTER MIDNIGHT WITH  
40 PERCENT CHANCE OF SHOWERS OVERNIGHT. LOW 15.  
WEDNESDAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A  
THUNDERSTORM IN THE AFTERNOON. HIGH 22. HUMIDEX 26. UV INDEX 5 OR  
MODERATE.  
 
LA VERENDRYE WILDLIFE RESERVE.  
TODAY..A MIX OF SUN AND CLOUD. FOG PATCHES DISSIPATING THIS MORNING.  
HIGH 25. HUMIDEX 28. UV INDEX 6 OR HIGH.  
TONIGHT..BECOMING CLOUDY THIS EVENING WITH 60 PERCENT CHANCE OF  
SHOWERS LATE THIS EVENING AND OVERNIGHT. LOW 16.  
WEDNESDAY..A MIX OF SUN AND CLOUD WITH 40 PERCENT CHANCE OF SHOWERS.  
HIGH 19. UV INDEX 6 OR HIGH.  
 
UPPER GATINEAU - LIEVRE - PAPINEAU.  
TODAY..A MIX OF SUN AND CLOUD. FOG PATCHES DISSIPATING THIS MORNING.  
HIGH 26. HUMIDEX 29. UV INDEX 7 OR HIGH.  
TONIGHT..PARTLY CLOUDY. BECOMING CLOUDY AFTER MIDNIGHT WITH  
40 PERCENT CHANCE OF SHOWERS OVERNIGHT. LOW 16.  
WEDNESDAY..A FEW SHOWERS ENDING IN THE AFTERNOON THEN A MIX OF SUN  
AND CLOUD WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM  
IN THE AFTERNOON. HIGH 23. HUMIDEX 27. UV INDEX 5 OR MODERATE.  
 
PONTIAC.  
TODAY..A MIX OF SUN AND CLOUD. FOG PATCHES DISSIPATING THIS MORNING.  
HIGH 26. HUMIDEX 31. UV INDEX 6 OR HIGH.  
TONIGHT..BECOMING CLOUDY LATE THIS EVENING WITH 60 PERCENT CHANCE OF  
SHOWERS OVERNIGHT. LOW 17.  
WEDNESDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS IN THE MORNING  
THEN A MIX OF SUN AND CLOUD. HIGH 24. HUMIDEX 28. UV INDEX 6 OR  
HIGH.  
 
TEMISCAMINGUE.  
TODAY..A MIX OF SUN AND CLOUD. 60 PERCENT CHANCE OF SHOWERS THIS  
AFTERNOON WITH RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING THIS  
MORNING. WIND BECOMING SOUTHWEST 20 KM/H NEAR NOON. HIGH 24. HUMIDEX  
28. UV INDEX 6 OR HIGH.  
TONIGHT..SHOWERS. RISK OF A THUNDERSTORM EARLY THIS EVENING. LOW 15.  
WEDNESDAY..A MIX OF SUN AND CLOUD WITH 40 PERCENT CHANCE OF SHOWERS.  
HIGH 21. UV INDEX 6 OR HIGH.  
 
ABITIBI.  
TODAY..MAINLY SUNNY. INCREASING CLOUDINESS THIS MORNING THEN A FEW  
SHOWERS BEGINNING THIS AFTERNOON. RISK OF A THUNDERSTORM LATE THIS  
AFTERNOON. FOG PATCHES DISSIPATING THIS MORNING. WIND BECOMING  
SOUTHWEST 20 KM/H NEAR NOON. HIGH 23. HUMIDEX 26. UV INDEX 5 OR  
MODERATE.  
TONIGHT..A FEW SHOWERS ENDING THIS EVENING THEN MAINLY CLOUDY WITH  
40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM EARLY THIS  
EVENING. LOW 13.  
WEDNESDAY..A MIX OF SUN AND CLOUD WITH 40 PERCENT CHANCE OF SHOWERS.  
HIGH 20. UV INDEX 5 OR MODERATE.  
 
PARENT - GOUIN RESERVOIR.  
TODAY..A MIX OF SUN AND CLOUD. FOG PATCHES DISSIPATING THIS MORNING.  
HIGH 23. HUMIDEX 25. UV INDEX 6 OR HIGH.  
TONIGHT..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS OVERNIGHT.  
LOW 14.  
WEDNESDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS.  
RISK OF A THUNDERSTORM IN THE AFTERNOON. HIGH 19. UV INDEX 6 OR  
HIGH.  
 
MATAGAMI.  
TODAY..MAINLY SUNNY. INCREASING CLOUDINESS NEAR NOON THEN A FEW  
SHOWERS BEGINNING LATE THIS AFTERNOON. RISK OF A THUNDERSTORM LATE  
THIS AFTERNOON. WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 NEAR  
NOON. HIGH 21. UV INDEX 6 OR HIGH.  
TONIGHT..A FEW SHOWERS ENDING THIS EVENING THEN PARTLY CLOUDY. RISK  
OF A THUNDERSTORM EARLY THIS EVENING. LOW 12.  
WEDNESDAY..A MIX OF SUN AND CLOUD WITH 40 PERCENT CHANCE OF SHOWERS.  
WIND BECOMING WEST 20 KM/H NEAR NOON. HIGH 19. UV INDEX 5 OR  
MODERATE.  
 
WASKAGANISH.  
TODAY..CLOUDY. A FEW SHOWERS BEGINNING THIS MORNING. RISK OF A  
THUNDERSTORM THIS AFTERNOON. WIND SOUTHWEST 20 KM/H GUSTING TO 40.  
HIGH 18. UV INDEX 2 OR LOW.  
TONIGHT..A FEW SHOWERS ENDING THIS EVENING THEN MAINLY CLOUDY. RISK  
OF A THUNDERSTORM EARLY THIS EVENING. WIND BECOMING SOUTHWEST  
20 KM/H AFTER MIDNIGHT. LOW 11.  
WEDNESDAY..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE  
AFTERNOON. WIND WEST 20 KM/H. HIGH 16. UV INDEX 4 OR MODERATE.  
 
END  
 
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