FPCN15 CWWG 152130 FORECASTS FOR SOUTHERN ALBERTA AND THE MOUNTAIN PARKS ISSUED BY ENVIRONMENT CANADA AT 4:00 P.M. MDT MONDAY 15 JUNE 2026 FOR TONIGHT TUESDAY AND TUESDAY NIGHT. THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. MDT TUESDAY. --------------------------------------------------------------------- MAJOR REFERENCE ELEVATIONS: BANFF: 1384 METRES. LAKE LOUISE: 1750 METRES. HIGHWAY 93 - BOW SUMMIT: 2068 METRES. HIGHWAY 93 - SUNWAPTA PASS: 2034 METRES. COLUMBIA ICEFIELDS VISITORS CENTRE: 2006 METRES. JASPER: 1061 METRES. CANMORE: 1350 METRES. HWY 40 - HIGHWOOD PASS: 2206 METRES. PINCHER CREEK: 1030 METRES. WATERTON: 1280 METRES. CROWSNEST PASS: 1300 METRES. --------------------------------------------------------------------- CITY OF CALGARY. TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING. CLEARING BEFORE MORNING. WIND SOUTH 20 KM/H BECOMING LIGHT THIS EVENING. LOW 14. TUESDAY..INCREASING CLOUDINESS. 60 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. WIND BECOMING NORTHWEST 40 KM/H GUSTING TO 60 NEAR NOON. HIGH 20 WITH TEMPERATURE FALLING TO 14 IN THE AFTERNOON. UV INDEX 6 OR HIGH. TUESDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS IN THE EVENING AND RISK OF A THUNDERSTORM. CLEARING OVERNIGHT. WIND NORTHWEST 40 KM/H GUSTING TO 60 DIMINISHING TO 20 IN THE EVENING THEN BECOMING LIGHT NEAR MIDNIGHT. LOW 9. OKOTOKS - HIGH RIVER - CLARESHOLM. TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS EVENING. CLEARING THIS EVENING. WIND SOUTHEAST 20 KM/H BECOMING LIGHT EARLY THIS EVENING. LOW 10. TUESDAY..INCREASING CLOUDINESS. 60 PERCENT CHANCE OF SHOWERS LATE IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. WIND BECOMING NORTH 20 KM/H GUSTING TO 40 EXCEPT GUSTING TO 80 IN WIND-PRONE AREAS IN THE AFTERNOON. HIGH 24 WITH TEMPERATURE FALLING TO 18 IN THE AFTERNOON. UV INDEX 7 OR HIGH. TUESDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS IN THE EVENING AND RISK OF A THUNDERSTORM. CLEARING OVERNIGHT. WIND NORTH 20 KM/H GUSTING TO 40 EXCEPT GUSTING TO 80 IN WIND-PRONE AREAS EARLY IN THE EVENING. WIND BECOMING LIGHT IN THE EVENING. LOW 7. AIRDRIE - COCHRANE - OLDS - SUNDRE. TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING. WIND WEST 20 KM/H BECOMING LIGHT THIS EVENING. LOW 10. TUESDAY..A MIX OF SUN AND CLOUD. 60 PERCENT CHANCE OF SHOWERS LATE IN THE MORNING AND IN THE AFTERNOON. RISK OF A THUNDERSTORM IN THE AFTERNOON. WIND BECOMING NORTH 20 KM/H THEN NORTHWEST 40 GUSTING TO 60 NEAR NOON. HIGH 18. UV INDEX 7 OR HIGH. TUESDAY NIGHT..PARTLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS IN THE EVENING WITH RISK OF A THUNDERSTORM. WIND NORTHWEST 40 KM/H GUSTING TO 60 BECOMING LIGHT IN THE EVENING. LOW 8. DRUMHELLER - THREE HILLS. TONIGHT..CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING. LOW 14. TUESDAY..A MIX OF SUN AND CLOUD. 60 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. WIND BECOMING NORTHWEST 60 KM/H GUSTING TO 80 NEAR NOON. HIGH 20. UV INDEX 6 OR HIGH. TUESDAY NIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM IN THE EVENING. WIND NORTHWEST 60 KM/H GUSTING TO 80 DIMINISHING TO 30 GUSTING TO 50 IN THE EVENING. LOW 11. BROOKS - STRATHMORE - VULCAN. TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING. LOW 13. TUESDAY..INCREASING CLOUDINESS. 60 PERCENT CHANCE OF SHOWERS LATE IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. WIND BECOMING NORTHWEST 60 KM/H GUSTING TO 80 NEAR NOON. HIGH 23 WITH TEMPERATURE FALLING TO 18 IN THE AFTERNOON. UV INDEX 7 OR HIGH. TUESDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS IN THE EVENING AND RISK OF A THUNDERSTORM. CLEARING OVERNIGHT. WIND NORTHWEST 60 KM/H GUSTING TO 80 DIMINISHING TO 30 GUSTING TO 50 IN THE EVENING. LOW 12. KANANASKIS - CANMORE. TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS EVENING. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 14. TUESDAY..A MIX OF SUN AND CLOUD. 60 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. WIND BECOMING WEST 20 KM/H GUSTING TO 40 EXCEPT GUSTING TO 80 IN WIND-PRONE AREAS IN THE AFTERNOON. HIGH 20 WITH TEMPERATURE FALLING TO 16 IN THE AFTERNOON. UV INDEX 7 OR HIGH. TUESDAY NIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS IN THE EVENING AND RISK OF A THUNDERSTORM. CLEARING OVERNIGHT. WIND WEST 20 KM/H GUSTING TO 40 EXCEPT GUSTING TO 80 IN WIND-PRONE AREAS EARLY IN THE EVENING. WIND BECOMING LIGHT IN THE EVENING. LOW 10. BANFF NATIONAL PARK HIGHWAY 93 - LAKE LOUISE TO SASKATCHEWAN RIVER CROSSING. TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS EVENING. LOW 10. TUESDAY..INCREASING CLOUDINESS EARLY IN THE MORNING. 60 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. WIND BECOMING SOUTHWEST 30 KM/H GUSTING TO 50 NEAR NOON. HIGH 16. UV INDEX 6 OR HIGH. TUESDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS IN THE EVENING AND RISK OF A THUNDERSTORM. CLEARING OVERNIGHT. WIND SOUTHWEST 30 KM/H GUSTING TO 50 BECOMING LIGHT IN THE EVENING. LOW PLUS 5. HIGHWAY 93 - JASPER TO SASKATCHEWAN RIVER CROSSING JASPER NATIONAL PARK. TONIGHT..CLOUDY. LOW 11. TUESDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM IN THE AFTERNOON. SNOW LEVEL LOWERING TO 2000 METRES LATE IN THE AFTERNOON. WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 NEAR NOON. HIGH 17. UV INDEX 4 OR MODERATE. TUESDAY NIGHT..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS IN THE EVENING WITH RISK OF A THUNDERSTORM. SNOW LEVEL 1900 METRES. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW 7. NORDEGG - FORESTRY TRUNK ROAD HIGHWAY 734. TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS EVENING. LOW 10. TUESDAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. WIND BECOMING NORTHWEST 30 KM/H GUSTING TO 50 NEAR NOON. HIGH 13. UV INDEX 5 OR MODERATE. TUESDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS IN THE EVENING AND RISK OF A THUNDERSTORM. CLEARING OVERNIGHT. WIND NORTHWEST 30 KM/H GUSTING TO 50 BECOMING LIGHT IN THE EVENING. LOW 6. ROCKY MOUNTAIN HOUSE - CAROLINE. TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS EVENING. LOW 11. TUESDAY..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS LATE IN THE MORNING AND IN THE AFTERNOON. RISK OF A THUNDERSTORM IN THE AFTERNOON. WIND BECOMING NORTHWEST 30 KM/H GUSTING TO 50 NEAR NOON. HIGH 18. UV INDEX 5 OR MODERATE. TUESDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS IN THE EVENING AND RISK OF A THUNDERSTORM. CLEARING OVERNIGHT. WIND NORTHWEST 30 KM/H GUSTING TO 50 BECOMING LIGHT NEAR MIDNIGHT. LOW 8. RED DEER - PONOKA - INNISFAIL - STETTLER. TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING. LOW 12. TUESDAY..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS LATE IN THE MORNING AND IN THE AFTERNOON. RISK OF A THUNDERSTORM IN THE AFTERNOON. WIND BECOMING NORTH 20 KM/H THEN NORTHWEST 40 GUSTING TO 70 NEAR NOON. HIGH 19. UV INDEX 5 OR MODERATE. TUESDAY NIGHT..PARTLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS IN THE EVENING WITH RISK OF A THUNDERSTORM. WIND NORTHWEST 40 KM/H GUSTING TO 70 DIMINISHING TO 20 IN THE EVENING. LOW 9. HANNA - CORONATION - OYEN. TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS. WIND NORTHWEST 20 KM/H BECOMING LIGHT NEAR MIDNIGHT. LOW 12. TUESDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. WIND BECOMING NORTHWEST 60 KM/H GUSTING TO 80 EARLY IN THE AFTERNOON. HIGH 19 WITH TEMPERATURE FALLING TO 15 IN THE AFTERNOON. UV INDEX 3 OR MODERATE. TUESDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM IN THE EVENING. WIND NORTHWEST 60 KM/H GUSTING TO 80 DIMINISHING TO 30 GUSTING TO 50 IN THE EVENING. LOW 9. MEDICINE HAT - BOW ISLAND - SUFFIELD. TONIGHT..MAINLY CLOUDY. LOW 15. TUESDAY..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS LATE IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. WIND BECOMING WEST 30 KM/H GUSTING TO 50 IN THE MORNING THEN NORTHWEST 60 GUSTING TO 80 IN THE AFTERNOON. HIGH 25 WITH TEMPERATURE FALLING TO 18 IN THE AFTERNOON. HUMIDEX 26. UV INDEX 7 OR HIGH. TUESDAY NIGHT..PARTLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS IN THE EVENING WITH RISK OF A THUNDERSTORM. WIND NORTHWEST 60 KM/H GUSTING TO 80 DIMINISHING TO 30 GUSTING TO 50 IN THE EVENING. LOW 12. CYPRESS HILLS PROVINCIAL PARK - FOREMOST. TONIGHT..MAINLY CLOUDY. WIND NORTHWEST 20 KM/H GUSTING TO 40. LOW 16. TUESDAY..SUNNY. INCREASING CLOUDINESS IN THE AFTERNOON THEN 60 PERCENT CHANCE OF SHOWERS LATE IN THE AFTERNOON. RISK OF A THUNDERSTORM LATE IN THE AFTERNOON. WIND NORTHWEST 20 KM/H BECOMING WEST 40 GUSTING TO 60 IN THE MORNING THEN NORTHWEST 60 GUSTING TO 80 IN THE AFTERNOON. HIGH 26 WITH TEMPERATURE FALLING TO 17 IN THE AFTERNOON. UV INDEX 8 OR VERY HIGH. TUESDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS IN THE EVENING AND AFTER MIDNIGHT AND RISK OF A THUNDERSTORM. CLEARING BEFORE MORNING. WIND NORTHWEST 60 KM/H GUSTING TO 80 DIMINISHING TO 30 GUSTING TO 50 IN THE EVENING. LOW 9. LETHBRIDGE - TABER - MILK RIVER. TONIGHT..MAINLY CLOUDY. CLEARING OVERNIGHT. WIND WEST 30 KM/H GUSTING TO 50. LOW 15. TUESDAY..INCREASING CLOUDINESS. 60 PERCENT CHANCE OF SHOWERS LATE IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H BECOMING WEST 40 GUSTING TO 70 IN THE MORNING THEN NORTHWEST 60 GUSTING TO 80 IN THE AFTERNOON. HIGH 26 WITH TEMPERATURE FALLING TO 17 IN THE AFTERNOON. UV INDEX 7 OR HIGH. TUESDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS IN THE EVENING AND AFTER MIDNIGHT AND RISK OF A THUNDERSTORM. CLEARING BEFORE MORNING. WIND NORTHWEST 60 KM/H GUSTING TO 80 BECOMING WEST 20 IN THE EVENING. LOW 8. CARDSTON - FORT MACLEOD - MAGRATH. TONIGHT..PARTLY CLOUDY. WIND WEST 30 KM/H GUSTING TO 50. LOW 16. TUESDAY..MAINLY SUNNY. INCREASING CLOUDINESS IN THE AFTERNOON THEN 60 PERCENT CHANCE OF SHOWERS LATE IN THE AFTERNOON. RISK OF A THUNDERSTORM LATE IN THE AFTERNOON. WIND SOUTHWEST 20 KM/H BECOMING WEST 40 GUSTING TO 70 IN THE MORNING THEN NORTHWEST 60 GUSTING TO 80 IN THE AFTERNOON. HIGH 24 WITH TEMPERATURE FALLING TO 18 IN THE AFTERNOON. UV INDEX 8 OR VERY HIGH. TUESDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS IN THE EVENING AND RISK OF A THUNDERSTORM. CLEARING OVERNIGHT. WIND NORTHWEST 60 KM/H GUSTING TO 80 BECOMING WEST 20 IN THE EVENING. LOW 7. CROWSNEST PASS - PINCHER CREEK - WATERTON LAKES NAT. PARK. TONIGHT..PARTLY CLOUDY. WIND WEST 30 KM/H GUSTING TO 50. LOW 16. TUESDAY..MAINLY SUNNY. INCREASING CLOUDINESS IN THE AFTERNOON THEN 60 PERCENT CHANCE OF SHOWERS LATE IN THE AFTERNOON. RISK OF A THUNDERSTORM LATE IN THE AFTERNOON. WIND WEST 20 KM/H INCREASING TO 40 GUSTING TO 70 IN THE MORNING THEN BECOMING NORTHWEST 60 GUSTING TO 80 IN THE AFTERNOON. HIGH 23 WITH TEMPERATURE FALLING TO 14 IN THE AFTERNOON. UV INDEX 8 OR VERY HIGH. TUESDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS IN THE EVENING AND RISK OF A THUNDERSTORM. CLEARING OVERNIGHT. WIND NORTHWEST 60 KM/H GUSTING TO 80 BECOMING WEST 20 IN THE EVENING. LOW 6. END