FPCN54 CWVR 171645 EXTENDED FORECASTS FROM MONDAY NIGHT 18 MAY TO SATURDAY 23 MAY FOR THE COLUMBIA AND KOOTENAY DISTRICTS OF BRITISH COLUMBIA ISSUED BY ENVIRONMENT CANADA AT 11:00 A.M. MDT SUNDAY 17 MAY 2026. THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 4:00 P.M. MDT. WEST COLUMBIA. MONDAY NIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW 7. TUESDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 19. TUESDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW 8. WEDNESDAY..CLEARING. HIGH 23. WEDNESDAY NIGHT..CLEAR. LOW 6. THURSDAY..CLOUDY. HIGH 20. THURSDAY NIGHT..CLOUDY PERIODS WITH 40 PERCENT CHANCE OF SHOWERS. LOW 8. FRIDAY..A MIX OF SUN AND CLOUD. HIGH 21. FRIDAY NIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW 8. SATURDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 18. NORMALS FOR THE PERIOD..LOW 7. HIGH 20. EAST COLUMBIA. MONDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF SHOWERS. LOW PLUS 4. TUESDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 15. TUESDAY NIGHT..CLOUDY PERIODS WITH 60 PERCENT CHANCE OF SHOWERS. LOW PLUS 5. WEDNESDAY..SUNNY. HIGH 18. WEDNESDAY NIGHT..CLEAR. LOW PLUS 2. THURSDAY..A MIX OF SUN AND CLOUD. HIGH 17. THURSDAY NIGHT..CLOUDY PERIODS WITH 40 PERCENT CHANCE OF SHOWERS. LOW PLUS 5. FRIDAY..A MIX OF SUN AND CLOUD. HIGH 17. FRIDAY NIGHT..CLOUDY PERIODS. LOW PLUS 5. SATURDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 16. NORMALS FOR THE PERIOD..LOW PLUS 5. HIGH 19. NORTH COLUMBIA KINBASKET. MONDAY NIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW PLUS 3. TUESDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 16. TUESDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. LOW PLUS 1. WEDNESDAY..SUNNY. HIGH 11. WEDNESDAY NIGHT..CLEAR. LOW MINUS 5. THURSDAY..CLOUDY. HIGH 12. THURSDAY NIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW PLUS 5. FRIDAY..CLOUDY. HIGH 18. FRIDAY NIGHT..CLOUDY. LOW 6. SATURDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 16. NORMALS FOR THE PERIOD..LOW PLUS 4. HIGH 18. YOHO PARK - KOOTENAY PARK. MONDAY NIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW MINUS 1. TUESDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 11. TUESDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. LOW MINUS 1. WEDNESDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF FLURRIES OR RAIN SHOWERS. HIGH PLUS 4. WEDNESDAY NIGHT..CLEAR. LOW MINUS 5. THURSDAY..CLOUDY. HIGH PLUS 4. THURSDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW PLUS 4. FRIDAY..A MIX OF SUN AND CLOUD. HIGH 16. FRIDAY NIGHT..CLOUDY PERIODS. LOW PLUS 4. SATURDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 15. NORMALS FOR THE PERIOD..LOW MINUS 1. HIGH 13. NORTH THOMPSON. MONDAY NIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW PLUS 5. TUESDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 20. TUESDAY NIGHT..CLOUDY PERIODS. LOW PLUS 4. WEDNESDAY..SUNNY. HIGH 17. WEDNESDAY NIGHT..INCREASING CLOUDINESS. LOW PLUS 5. THURSDAY..CLEARING. HIGH 17. THURSDAY NIGHT..CLOUDY PERIODS. LOW 6. FRIDAY..A MIX OF SUN AND CLOUD. HIGH 20. FRIDAY NIGHT..CLOUDY PERIODS. LOW 7. SATURDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 17. NORMALS FOR THE PERIOD..LOW PLUS 5. HIGH 20. BOUNDARY. MONDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF SHOWERS. LOW PLUS 3. TUESDAY..SUNNY. HIGH 22. TUESDAY NIGHT..CLOUDY PERIODS. LOW 6. WEDNESDAY..SUNNY. HIGH 20. WEDNESDAY NIGHT..CLEAR. LOW PLUS 4. THURSDAY..A MIX OF SUN AND CLOUD. HIGH 20. THURSDAY NIGHT..CLOUDY PERIODS. LOW 9. FRIDAY..A MIX OF SUN AND CLOUD. HIGH 25. FRIDAY NIGHT..CLOUDY PERIODS. LOW 9. SATURDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 22. NORMALS FOR THE PERIOD..LOW 6. HIGH 21. ARROW LAKES - SLOCAN LAKE. MONDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF SHOWERS. LOW PLUS 5. TUESDAY..A MIX OF SUN AND CLOUD WITH 40 PERCENT CHANCE OF SHOWERS. HIGH 17. TUESDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. LOW 6. WEDNESDAY..SUNNY. HIGH 19. WEDNESDAY NIGHT..CLEAR. LOW PLUS 5. THURSDAY..CLOUDY. HIGH 17. THURSDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW 8. FRIDAY..A MIX OF SUN AND CLOUD. HIGH 22. FRIDAY NIGHT..CLOUDY. LOW 8. SATURDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 19. NORMALS FOR THE PERIOD..LOW 6. HIGH 19. WEST KOOTENAY. MONDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF SHOWERS. LOW PLUS 5. TUESDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 20. TUESDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF SHOWERS. LOW 6. WEDNESDAY..SUNNY. HIGH 23. WEDNESDAY NIGHT..CLEAR. LOW PLUS 5. THURSDAY..INCREASING CLOUDINESS. HIGH 21. THURSDAY NIGHT..CLOUDY. LOW 9. FRIDAY..A MIX OF SUN AND CLOUD. HIGH 24. FRIDAY NIGHT..CLOUDY PERIODS. LOW 9. SATURDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 21. NORMALS FOR THE PERIOD..LOW 7. HIGH 20. KOOTENAY LAKE. MONDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF SHOWERS. LOW PLUS 5. TUESDAY..A MIX OF SUN AND CLOUD WITH 40 PERCENT CHANCE OF SHOWERS. HIGH 18. TUESDAY NIGHT..CLOUDY. LOW 7. WEDNESDAY..A MIX OF SUN AND CLOUD. HIGH 20. WEDNESDAY NIGHT..CLEAR. LOW 8. THURSDAY..INCREASING CLOUDINESS. HIGH 19. THURSDAY NIGHT..CLOUDY PERIODS. LOW 8. FRIDAY..A MIX OF SUN AND CLOUD. HIGH 22. FRIDAY NIGHT..CLOUDY PERIODS. LOW 8. SATURDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 20. NORMALS FOR THE PERIOD..LOW 7. HIGH 20. EAST KOOTENAY. MONDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF SHOWERS. LOW PLUS 4. TUESDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 17. TUESDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW 6. WEDNESDAY..A MIX OF SUN AND CLOUD. HIGH 15. WEDNESDAY NIGHT..CLEAR. LOW PLUS 4. THURSDAY..SUNNY. HIGH 17. THURSDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF SHOWERS. LOW 6. FRIDAY..A MIX OF SUN AND CLOUD. HIGH 19. FRIDAY NIGHT..CLOUDY PERIODS. LOW 7. SATURDAY..CLOUDY. HIGH 19. NORMALS FOR THE PERIOD..LOW PLUS 4. HIGH 20. ELK VALLEY. MONDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF SHOWERS. LOW ZERO. TUESDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 15. TUESDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW PLUS 5. WEDNESDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 13. WEDNESDAY NIGHT..CLEAR. LOW PLUS 1. THURSDAY..A MIX OF SUN AND CLOUD. HIGH 17. THURSDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW 6. FRIDAY..A MIX OF SUN AND CLOUD. HIGH 18. FRIDAY NIGHT..CLOUDY PERIODS. LOW 6. SATURDAY..CLOUDY. HIGH 19. NORMALS FOR THE PERIOD..LOW PLUS 2. HIGH 15. END