135  
FPCN54 CWVR 212212 AAA  
UPDATED EXTENDED FORECASTS FROM SUNDAY 23 AUGUST TO THURSDAY 27  
AUGUST FOR THE COLUMBIA AND KOOTENAY DISTRICTS OF BRITISH COLUMBIA  
ISSUED BY ENVIRONMENT CANADA AT 4:12 P.M. MDT FRIDAY 21 AUGUST 2026.  
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. MDT SATURDAY.  
 
BOUNDARY.  
SUNDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS OR  
THUNDERSTORMS. HIGH 22.  
SUNDAY NIGHT..CLEAR. LOW 12.  
MONDAY..SUNNY. HIGH 28.  
MONDAY NIGHT..CLEAR. LOW 12.  
TUESDAY..SUNNY. HIGH 33.  
TUESDAY NIGHT..CLOUDY PERIODS. LOW 12.  
WEDNESDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS.  
HIGH 28.  
WEDNESDAY NIGHT..CLOUDY PERIODS. LOW 11.  
THURSDAY..A MIX OF SUN AND CLOUD. HIGH 28.  
NORMALS FOR THE PERIOD..LOW 11. HIGH 27.  
 
ARROW LAKES - SLOCAN LAKE.  
SUNDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS OR THUNDERSTORMS.  
HIGH 20.  
SUNDAY NIGHT..CLOUDY PERIODS WITH 40 PERCENT CHANCE OF SHOWERS.  
LOW 13.  
MONDAY..SUNNY. HIGH 24.  
MONDAY NIGHT..CLEAR. LOW 11.  
TUESDAY..SUNNY. HIGH 28.  
TUESDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF SHOWERS.  
LOW 12.  
WEDNESDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 24.  
WEDNESDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW 11.  
THURSDAY..A MIX OF SUN AND CLOUD. HIGH 24.  
NORMALS FOR THE PERIOD..LOW 11. HIGH 24.  
 
WEST KOOTENAY.  
SUNDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS OR  
THUNDERSTORMS. HIGH 22.  
SUNDAY NIGHT..CLEAR. LOW 12.  
MONDAY..SUNNY. HIGH 28.  
MONDAY NIGHT..CLEAR. LOW 12.  
TUESDAY..SUNNY. HIGH 33.  
TUESDAY NIGHT..CLOUDY PERIODS. LOW 12.  
WEDNESDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS.  
HIGH 28.  
WEDNESDAY NIGHT..CLOUDY PERIODS. LOW 11.  
THURSDAY..A MIX OF SUN AND CLOUD. HIGH 28.  
NORMALS FOR THE PERIOD..LOW 11. HIGH 27.  
 
KOOTENAY LAKE.  
SUNDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS.  
HIGH 23.  
SUNDAY NIGHT..CLOUDY PERIODS WITH 60 PERCENT CHANCE OF SHOWERS.  
LOW 13.  
MONDAY..SUNNY. HIGH 27.  
MONDAY NIGHT..CLEAR. LOW 15.  
TUESDAY..SUNNY. HIGH 31.  
TUESDAY NIGHT..CLOUDY PERIODS. LOW 12.  
WEDNESDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS.  
HIGH 28.  
WEDNESDAY NIGHT..CLOUDY PERIODS. LOW 11.  
THURSDAY..A MIX OF SUN AND CLOUD. HIGH 27.  
NORMALS FOR THE PERIOD..LOW 11. HIGH 26.  
 
EAST KOOTENAY.  
SUNDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS.  
HIGH 23.  
SUNDAY NIGHT..CLOUDY PERIODS WITH 60 PERCENT CHANCE OF SHOWERS.  
LOW 11.  
MONDAY..SUNNY. HIGH 25.  
MONDAY NIGHT..CLEAR. LOW 12.  
TUESDAY..SUNNY. HIGH 30.  
TUESDAY NIGHT..CLEAR. LOW 12.  
WEDNESDAY..A MIX OF SUN AND CLOUD. HIGH 26.  
WEDNESDAY NIGHT..CLOUDY PERIODS. LOW 11.  
THURSDAY..A MIX OF SUN AND CLOUD. HIGH 26.  
NORMALS FOR THE PERIOD..LOW 7. HIGH 26.  
 
ELK VALLEY.  
SUNDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS.  
WINDY. HIGH 22.  
SUNDAY NIGHT..CLEAR. LOW 9.  
MONDAY..SUNNY. HIGH 23.  
MONDAY NIGHT..CLEAR. LOW 8.  
TUESDAY..SUNNY. HIGH 28.  
TUESDAY NIGHT..CLEAR. LOW 11.  
WEDNESDAY..A MIX OF SUN AND CLOUD. HIGH 27.  
WEDNESDAY NIGHT..CLOUDY PERIODS. LOW 10.  
THURSDAY..A MIX OF SUN AND CLOUD. HIGH 26.  
NORMALS FOR THE PERIOD..LOW PLUS 5. HIGH 22.  
 
REMAINDER UNCHANGED.  
 
END  
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