806
FPCN15 CWWG 151630
FORECASTS FOR SOUTHERN ALBERTA AND THE MOUNTAIN PARKS ISSUED BY
ENVIRONMENT CANADA AT 11:00 A.M. MDT TUESDAY 15 SEPTEMBER 2026 FOR
TODAY AND WEDNESDAY.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 4:00 P.M. MDT.
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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.
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CITY OF CALGARY.
TODAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 12. UV INDEX 2
OR LOW.
TONIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS THIS
EVENING. CLEARING NEAR MIDNIGHT. LOW PLUS 4 WITH RISK OF FROST.
WEDNESDAY..SUNNY. HIGH 18. UV INDEX 4 OR MODERATE.
OKOTOKS - HIGH RIVER - CLARESHOLM.
TODAY..CLOUDY. 30 PERCENT CHANCE OF SHOWERS NEAR NOON. RAIN BEGINNING
EARLY THIS AFTERNOON. AMOUNT 5 TO 10 MM. HIGH 9. UV INDEX 2 OR LOW.
TONIGHT..RAIN ENDING BEFORE MORNING THEN MAINLY CLOUDY. LOW 7.
WEDNESDAY..A MIX OF SUN AND CLOUD. BECOMING SUNNY IN THE MORNING.
HIGH 17. UV INDEX 4 OR MODERATE.
AIRDRIE - COCHRANE - OLDS - SUNDRE.
TODAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS.
HIGH 11. UV INDEX 4 OR MODERATE.
TONIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS THIS
EVENING. CLEARING NEAR MIDNIGHT. LOW MINUS 2 WITH FROST.
WEDNESDAY..SUNNY. HIGH 18. UV INDEX 4 OR MODERATE.
DRUMHELLER - THREE HILLS.
TODAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 16. UV INDEX 3
OR MODERATE.
TONIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY THIS EVENING.
CLEARING NEAR MIDNIGHT. LOW PLUS 4 WITH RISK OF FROST.
WEDNESDAY..SUNNY. HIGH 21. UV INDEX 4 OR MODERATE.
BROOKS - STRATHMORE - VULCAN.
TODAY..CLOUDY. 30 PERCENT CHANCE OF SHOWERS. PERIODS OF RAIN
BEGINNING LATE THIS AFTERNOON. HIGH 14. UV INDEX 2 OR LOW.
TONIGHT..PERIODS OF RAIN ENDING BEFORE MORNING THEN CLEARING. LOW 6.
WEDNESDAY..MAINLY SUNNY. HIGH 19. UV INDEX 4 OR MODERATE.
KANANASKIS - CANMORE.
TODAY..PERIODS OF RAIN. RISK OF A THUNDERSTORM LATE THIS AFTERNOON.
AMOUNT 5 MM. SNOW LEVEL 2200 METRES. HIGH 10. UV INDEX 1 OR LOW.
TONIGHT..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS THIS
EVENING. CLEARING OVERNIGHT. RISK OF A THUNDERSTORM EARLY THIS
EVENING. SNOW LEVEL LOWERING TO 1700 METRES LATE THIS EVENING. LOW
PLUS 3.
WEDNESDAY..SUNNY. HIGH 18. UV INDEX 4 OR MODERATE.
BANFF NATIONAL PARK
HIGHWAY 93 - LAKE LOUISE TO SASKATCHEWAN RIVER CROSSING.
TODAY..PERIODS OF RAIN ENDING THIS AFTERNOON THEN CLOUDY WITH
30 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM LATE THIS
AFTERNOON. LOCAL AMOUNT 5 MM. SNOW LEVEL 1800 METRES RISING TO 2400
METRES THIS AFTERNOON. HIGH 9. UV INDEX 1 OR LOW.
TONIGHT..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS THIS EVENING
AND AFTER MIDNIGHT. CLEARING BEFORE MORNING. RISK OF A THUNDERSTORM
EARLY THIS EVENING. SNOW LEVEL 2400 METRES LOWERING TO NEAR VALLEY
BOTTOM NEAR MIDNIGHT. LOW PLUS 1.
WEDNESDAY..SUNNY. HIGH 16. UV INDEX 4 OR MODERATE.
HIGHWAY 93 - JASPER TO SASKATCHEWAN RIVER CROSSING
JASPER NATIONAL PARK.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS THIS
AFTERNOON WITH RISK OF A THUNDERSTORM. HIGH 17. UV INDEX 3 OR
MODERATE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING AND
AFTER MIDNIGHT. RISK OF A THUNDERSTORM EARLY THIS EVENING. SNOW
LEVEL LOWERING TO 1800 METRES THIS EVENING. LOW MINUS 1.
WEDNESDAY..SUNNY. HIGH 20. UV INDEX 4 OR MODERATE.
NORDEGG - FORESTRY TRUNK ROAD HIGHWAY 734.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS LATE THIS
AFTERNOON WITH RISK OF A THUNDERSTORM. HIGH 11. UV INDEX 3 OR
MODERATE.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. BECOMING CLEAR OVERNIGHT. RISK OF A THUNDERSTORM EARLY THIS
EVENING. LOW MINUS 1.
WEDNESDAY..SUNNY. HIGH 18. UV INDEX 4 OR MODERATE.
ROCKY MOUNTAIN HOUSE - CAROLINE.
TODAY..MAINLY SUNNY. HIGH 14. UV INDEX 3 OR MODERATE.
TONIGHT..A FEW CLOUDS. LOW MINUS 1 WITH FROST.
WEDNESDAY..SUNNY. HIGH 19. UV INDEX 4 OR MODERATE.
RED DEER - PONOKA - INNISFAIL - STETTLER.
TODAY..A MIX OF SUN AND CLOUD. HIGH 12. UV INDEX 3 OR MODERATE.
TONIGHT..PARTLY CLOUDY. BECOMING CLEAR THIS EVENING. LOW PLUS 3 WITH
RISK OF FROST.
WEDNESDAY..SUNNY. HIGH 18. UV INDEX 4 OR MODERATE.
HANNA - CORONATION - OYEN.
TODAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS.
HIGH 15. UV INDEX 4 OR MODERATE.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. CLEARING THIS EVENING. LOW PLUS 3 WITH RISK OF FROST.
WEDNESDAY..SUNNY. HIGH 19. UV INDEX 4 OR MODERATE.
MEDICINE HAT - BOW ISLAND - SUFFIELD.
TODAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 13. UV INDEX 2
OR LOW.
TONIGHT..RAIN. AMOUNT 5 TO 10 MM. LOW 7.
WEDNESDAY..RAIN ENDING EARLY IN THE MORNING THEN CLEARING. HIGH 18.
UV INDEX 4 OR MODERATE.
CYPRESS HILLS PROVINCIAL PARK - FOREMOST.
TODAY..MAINLY CLOUDY. HIGH 13. UV INDEX 4 OR MODERATE.
TONIGHT..CLOUDY. RAIN BEGINNING EARLY THIS EVENING. AMOUNT 5 TO
10 MM. LOW 6.
WEDNESDAY..RAIN ENDING EARLY IN THE MORNING THEN CLEARING. HIGH 16.
UV INDEX 4 OR MODERATE.
LETHBRIDGE - TABER - MILK RIVER.
TODAY..CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS AFTERNOON.
RAIN BEGINNING THIS AFTERNOON. LOCAL AMOUNT 5 MM. HIGH 11. UV
INDEX 2 OR LOW.
TONIGHT..RAIN. AMOUNT 5 TO 10 MM. LOW 6.
WEDNESDAY..MAINLY CLOUDY. CLEARING IN THE AFTERNOON. HIGH 16. UV
INDEX 4 OR MODERATE.
CARDSTON - FORT MACLEOD - MAGRATH.
TODAY..CLOUDY. 30 PERCENT CHANCE OF SHOWERS NEAR NOON. RAIN BEGINNING
EARLY THIS AFTERNOON. AMOUNT 5 MM. HIGH 10. UV INDEX 2 OR LOW.
TONIGHT..RAIN. AMOUNT 5 TO 10 MM. LOW PLUS 5.
WEDNESDAY..CLEARING IN THE MORNING. HIGH 16. UV INDEX 4 OR MODERATE.
CROWSNEST PASS - PINCHER CREEK - WATERTON LAKES NAT. PARK.
TODAY..RAIN. AMOUNT 5 MM. HIGH 8. UV INDEX 1 OR LOW.
TONIGHT..RAIN ENDING BEFORE MORNING THEN CLOUDY. AMOUNT 5 TO 10 MM.
LOW PLUS 5.
WEDNESDAY..CLEARING IN THE MORNING. HIGH 16. UV INDEX 4 OR MODERATE.
END
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