FPCN52 CWTO 161920 EXTENDED FORECASTS FROM MONDAY 18 MAY TO FRIDAY 22 MAY FOR NORTHERN ONTARIO ISSUED BY ENVIRONMENT CANADA AT 4:00 P.M. EDT SATURDAY 16 MAY 2026. THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:30 A.M. EDT SUNDAY. CITY OF THUNDER BAY. MONDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 8. MONDAY NIGHT..PERIODS OF RAIN. LOW PLUS 2. TUESDAY..PERIODS OF RAIN. HIGH 6. TUESDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. LOW ZERO. WEDNESDAY..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. HIGH 8. WEDNESDAY NIGHT..CLOUDY PERIODS. LOW MINUS 1. THURSDAY..SUNNY. HIGH 16. THURSDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF SHOWERS. LOW PLUS 1. FRIDAY..SUNNY. HIGH 17. NORMALS FOR THE PERIOD..LOW PLUS 3. HIGH 17. KENORA - NESTOR FALLS. MONDAY..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. HIGH 7. MONDAY NIGHT..PERIODS OF RAIN. LOW ZERO. TUESDAY..PERIODS OF RAIN OR SNOW. HIGH PLUS 4. TUESDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. LOW ZERO. WEDNESDAY..CLOUDY WITH 30 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. HIGH 9. WEDNESDAY NIGHT..CLEAR. LOW PLUS 4. THURSDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 18. THURSDAY NIGHT..CLOUDY PERIODS. LOW 7. FRIDAY..A MIX OF SUN AND CLOUD. HIGH 20. NORMALS FOR THE PERIOD..LOW 7. HIGH 18. DRYDEN - IGNACE. MONDAY..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. HIGH 6. MONDAY NIGHT..PERIODS OF RAIN. LOW PLUS 1. TUESDAY..PERIODS OF RAIN OR SNOW. HIGH PLUS 4. TUESDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. LOW ZERO. WEDNESDAY..CLOUDY WITH 30 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. HIGH 8. WEDNESDAY NIGHT..CLOUDY PERIODS. LOW PLUS 2. THURSDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 17. THURSDAY NIGHT..CLEAR. LOW PLUS 5. FRIDAY..SUNNY. HIGH 20. NORMALS FOR THE PERIOD..LOW PLUS 5. HIGH 18. FORT FRANCES - RAINY LAKE. MONDAY..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. HIGH 8. MONDAY NIGHT..PERIODS OF RAIN. LOW PLUS 2. TUESDAY..PERIODS OF RAIN. HIGH PLUS 4. TUESDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. LOW ZERO. WEDNESDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 8. WEDNESDAY NIGHT..CLOUDY PERIODS. LOW PLUS 1. THURSDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 17. THURSDAY NIGHT..CLEAR. LOW PLUS 4. FRIDAY..SUNNY. HIGH 19. NORMALS FOR THE PERIOD..LOW 6. HIGH 20. ATIKOKAN - UPSALA - QUETICO. MONDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 6. MONDAY NIGHT..PERIODS OF RAIN. LOW PLUS 1. TUESDAY..PERIODS OF RAIN. HIGH PLUS 4. TUESDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. LOW MINUS 2. WEDNESDAY..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. HIGH 8. WEDNESDAY NIGHT..CLOUDY PERIODS. LOW MINUS 4. THURSDAY..SUNNY. HIGH 16. THURSDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF SHOWERS. LOW ZERO. FRIDAY..SUNNY. HIGH 19. NORMALS FOR THE PERIOD..LOW PLUS 5. HIGH 18. SUPERIOR WEST. MONDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 8. MONDAY NIGHT..PERIODS OF RAIN. LOW PLUS 1. TUESDAY..PERIODS OF RAIN. HIGH PLUS 5. TUESDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. LOW ZERO. WEDNESDAY..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. HIGH 8. WEDNESDAY NIGHT..CLOUDY PERIODS. LOW MINUS 2. THURSDAY..SUNNY. HIGH 16. THURSDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF SHOWERS. LOW ZERO. FRIDAY..SUNNY. HIGH 16. NORMALS FOR THE PERIOD..LOW PLUS 4. HIGH 17. RED LAKE - EAR FALLS. MONDAY..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. HIGH 8. MONDAY NIGHT..PERIODS OF RAIN. LOW ZERO. TUESDAY..PERIODS OF RAIN OR SNOW. HIGH PLUS 5. TUESDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. LOW MINUS 1. WEDNESDAY..CLOUDY WITH 30 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. HIGH 9. WEDNESDAY NIGHT..CLOUDY PERIODS. LOW PLUS 3. THURSDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 18. THURSDAY NIGHT..CLOUDY PERIODS. LOW 6. FRIDAY..A MIX OF SUN AND CLOUD. HIGH 20. NORMALS FOR THE PERIOD..LOW PLUS 4. HIGH 17. SIOUX LOOKOUT - SAVANT LAKE. MONDAY..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. HIGH 6. MONDAY NIGHT..PERIODS OF RAIN. LOW ZERO. TUESDAY..PERIODS OF RAIN OR SNOW. HIGH PLUS 3. TUESDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. LOW MINUS 1. WEDNESDAY..CLOUDY WITH 30 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. HIGH 6. WEDNESDAY NIGHT..CLOUDY PERIODS. LOW ZERO. THURSDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 17. THURSDAY NIGHT..CLOUDY PERIODS. LOW PLUS 3. FRIDAY..A MIX OF SUN AND CLOUD. HIGH 20. NORMALS FOR THE PERIOD..LOW PLUS 5. HIGH 18. LAKE NIPIGON - WABAKIMI. MONDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 6. MONDAY NIGHT..PERIODS OF RAIN. LOW MINUS 1. TUESDAY..RAIN OR SNOW. HIGH PLUS 3. TUESDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. LOW MINUS 2. WEDNESDAY..CLOUDY WITH 40 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. HIGH PLUS 5. WEDNESDAY NIGHT..CLOUDY PERIODS. LOW MINUS 1. THURSDAY..SUNNY. HIGH 16. THURSDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF SHOWERS. LOW PLUS 2. FRIDAY..SUNNY. HIGH 17. NORMALS FOR THE PERIOD..LOW PLUS 3. HIGH 17. GERALDTON - MANITOUWADGE - HORNEPAYNE. MONDAY..SHOWERS. HIGH 7. MONDAY NIGHT..PERIODS OF RAIN. LOW MINUS 2. TUESDAY..RAIN OR SNOW. HIGH PLUS 2. TUESDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. LOW MINUS 2. WEDNESDAY..CLOUDY WITH 40 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. HIGH PLUS 3. WEDNESDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF FLURRIES. LOW MINUS 3. THURSDAY..SUNNY. HIGH 15. THURSDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF SHOWERS. LOW ZERO. FRIDAY..SUNNY. HIGH 16. NORMALS FOR THE PERIOD..LOW PLUS 2. HIGH 17. NIPIGON - MARATHON - SUPERIOR NORTH. MONDAY..SHOWERS. HIGH 8. MONDAY NIGHT..PERIODS OF RAIN. LOW PLUS 1. TUESDAY..PERIODS OF RAIN. HIGH 6. TUESDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. LOW MINUS 1. WEDNESDAY..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. HIGH 6. WEDNESDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. LOW MINUS 2. THURSDAY..SUNNY. HIGH 15. THURSDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF SHOWERS. LOW ZERO. FRIDAY..SUNNY. HIGH 15. NORMALS FOR THE PERIOD..LOW PLUS 3. HIGH 17. WAWA - WHITE RIVER - PUKASKWA. MONDAY..SHOWERS. HIGH 12. MONDAY NIGHT..SHOWERS. LOW PLUS 4. TUESDAY..PERIODS OF RAIN. HIGH 6. TUESDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. LOW PLUS 2. WEDNESDAY..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. HIGH 8. WEDNESDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. LOW MINUS 2. THURSDAY..A MIX OF SUN AND CLOUD. HIGH 9. THURSDAY NIGHT..CLOUDY PERIODS. LOW ZERO. FRIDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 14. NORMALS FOR THE PERIOD..LOW PLUS 3. HIGH 17. SAULT STE. MARIE - SUPERIOR EAST. MONDAY..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. HIGH 22. MONDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW 9. TUESDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 12. TUESDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. LOW PLUS 5. WEDNESDAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 7. WEDNESDAY NIGHT..CLOUDY PERIODS. LOW PLUS 1. THURSDAY..A MIX OF SUN AND CLOUD. HIGH 12. THURSDAY NIGHT..CLOUDY PERIODS. LOW PLUS 1. FRIDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 15. NORMALS FOR THE PERIOD..LOW PLUS 4. HIGH 17. KAPUSKASING - HEARST. MONDAY..SHOWERS. HIGH 7. MONDAY NIGHT..PERIODS OF RAIN. LOW ZERO. TUESDAY..PERIODS OF RAIN. HIGH PLUS 5. TUESDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. LOW PLUS 1. WEDNESDAY..CLOUDY WITH 40 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. HIGH 6. WEDNESDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. LOW MINUS 2. THURSDAY..SUNNY. HIGH 12. THURSDAY NIGHT..CLEAR. LOW PLUS 1. FRIDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 15. NORMALS FOR THE PERIOD..LOW PLUS 3. HIGH 17. TIMMINS - COCHRANE. MONDAY..SHOWERS. HIGH 11. MONDAY NIGHT..PERIODS OF RAIN. LOW PLUS 3. TUESDAY..PERIODS OF RAIN. HIGH 8. TUESDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. LOW PLUS 3. WEDNESDAY..CLOUDY WITH 40 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. HIGH 8. WEDNESDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. LOW MINUS 1. THURSDAY..SUNNY. HIGH 13. THURSDAY NIGHT..CLEAR. LOW PLUS 1. FRIDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 15. NORMALS FOR THE PERIOD..LOW PLUS 4. HIGH 18. GREATER SUDBURY AND VICINITY. MONDAY..CLOUDY. HIGH 22. MONDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. LOW 9. TUESDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 15. TUESDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. LOW 7. WEDNESDAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 11. WEDNESDAY NIGHT..CLEARING. LOW PLUS 2. THURSDAY..SUNNY. HIGH 14. THURSDAY NIGHT..CLEAR. LOW PLUS 4. FRIDAY..SUNNY. HIGH 15. NORMALS FOR THE PERIOD..LOW 6. HIGH 18. CHAPLEAU - GOGAMA. MONDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 20. MONDAY NIGHT..CLOUDY WITH 70 PERCENT CHANCE OF SHOWERS. LOW PLUS 4. TUESDAY..CLOUDY WITH 70 PERCENT CHANCE OF SHOWERS. HIGH 7. TUESDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. LOW PLUS 2. WEDNESDAY..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. HIGH 7. WEDNESDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. LOW MINUS 1. THURSDAY..A MIX OF SUN AND CLOUD. HIGH 12. THURSDAY NIGHT..CLOUDY PERIODS. LOW PLUS 1. FRIDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 15. NORMALS FOR THE PERIOD..LOW PLUS 3. HIGH 17. KIRKLAND LAKE - TEMISKAMING SHORES - TEMAGAMI. MONDAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 21. MONDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW 7. TUESDAY..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. HIGH 11. TUESDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. LOW 6. WEDNESDAY..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. HIGH 10. WEDNESDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES. LOW PLUS 1. THURSDAY..SUNNY. HIGH 14. THURSDAY NIGHT..CLEAR. LOW PLUS 2. FRIDAY..SUNNY. HIGH 15. NORMALS FOR THE PERIOD..LOW PLUS 4. HIGH 18. ELLIOT LAKE - RANGER LAKE. MONDAY..CLOUDY. HIGH 22. MONDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. LOW 10. TUESDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 15. TUESDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. LOW 8. WEDNESDAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 11. WEDNESDAY NIGHT..CLEARING. LOW PLUS 3. THURSDAY..SUNNY. HIGH 14. THURSDAY NIGHT..CLEAR. LOW PLUS 4. FRIDAY..SUNNY. HIGH 15. NORMALS FOR THE PERIOD..LOW PLUS 5. HIGH 17. MANITOULIN - BLIND RIVER - KILLARNEY. MONDAY..CLOUDY. HIGH 22. MONDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. LOW 12. TUESDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 15. TUESDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. LOW 8. WEDNESDAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 13. WEDNESDAY NIGHT..CLEAR. LOW PLUS 4. THURSDAY..SUNNY. HIGH 14. THURSDAY NIGHT..CLEAR. LOW PLUS 4. FRIDAY..SUNNY. HIGH 15. NORMALS FOR THE PERIOD..LOW 6. HIGH 17. NORTH BAY - WEST NIPISSING. MONDAY..CLEARING. HIGH 25. MONDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. LOW 12. TUESDAY..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. HIGH 18. TUESDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. LOW 10. WEDNESDAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 15. WEDNESDAY NIGHT..CLOUDY PERIODS. LOW PLUS 2. THURSDAY..A MIX OF SUN AND CLOUD. HIGH 14. THURSDAY NIGHT..CLEAR. LOW PLUS 3. FRIDAY..SUNNY. HIGH 16. NORMALS FOR THE PERIOD..LOW 6. HIGH 19. END