946
FPCN15 CWWG 271048
FORECASTS FOR SOUTHERN ALBERTA AND THE MOUNTAIN PARKS ISSUED BY
ENVIRONMENT CANADA AT 5:00 A.M. MDT WEDNESDAY 27 MAY 2026 FOR TODAY
AND THURSDAY.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 11:00 A.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..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS EARLY
THIS MORNING AND LATE THIS AFTERNOON. RISK OF A THUNDERSTORM LATE
THIS AFTERNOON. WIND NORTHWEST 40 KM/H GUSTING TO 60 BECOMING LIGHT
THIS MORNING. HIGH 29. UV INDEX 7 OR HIGH.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING
WITH RISK OF A THUNDERSTORM. LOW 16.
THURSDAY..SUNNY IN THE MORNING AND EARLY IN THE AFTERNOON THEN A MIX
OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS LATE IN THE
AFTERNOON. RISK OF A THUNDERSTORM LATE IN THE AFTERNOON. HIGH 29.
HUMIDEX 31. UV INDEX 7 OR HIGH.
OKOTOKS - HIGH RIVER - CLARESHOLM.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS EARLY
THIS MORNING AND LATE THIS AFTERNOON. RISK OF A THUNDERSTORM LATE
THIS AFTERNOON. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT
THIS MORNING. HIGH 29. HUMIDEX 31. UV INDEX 7 OR HIGH.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING
WITH RISK OF A THUNDERSTORM. LOW 15.
THURSDAY..SUNNY IN THE MORNING AND EARLY IN THE AFTERNOON THEN A MIX
OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS LATE IN THE
AFTERNOON. RISK OF THUNDERSTORMS LATE IN THE AFTERNOON. HIGH 30.
HUMIDEX 32. UV INDEX 7 OR HIGH.
AIRDRIE - COCHRANE - OLDS - SUNDRE.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS EARLY
THIS MORNING AND LATE THIS AFTERNOON. RISK OF A THUNDERSTORM LATE
THIS AFTERNOON. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT
THIS MORNING. HIGH 29. UV INDEX 7 OR HIGH.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING
WITH RISK OF A THUNDERSTORM. LOW 11.
THURSDAY..SUNNY IN THE MORNING AND EARLY IN THE AFTERNOON THEN A MIX
OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS LATE IN THE
AFTERNOON. RISK OF A THUNDERSTORM LATE IN THE AFTERNOON. HIGH 27.
HUMIDEX 28. UV INDEX 7 OR HIGH.
DRUMHELLER - THREE HILLS.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS EARLY
THIS MORNING AND LATE THIS AFTERNOON. RISK OF A THUNDERSTORM.
HIGH 33. HUMIDEX 35. UV INDEX 7 OR HIGH.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS AND RISK OF
A THUNDERSTORM. LOW 16.
THURSDAY..SUNNY. HIGH 34. HUMIDEX 35. UV INDEX 7 OR HIGH.
BROOKS - STRATHMORE - VULCAN.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS EARLY
THIS MORNING AND LATE THIS AFTERNOON. RISK OF A THUNDERSTORM. WIND
NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS MORNING.
HIGH 34. HUMIDEX 35. UV INDEX 7 OR HIGH.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS AND RISK OF
A THUNDERSTORM. LOW 15.
THURSDAY..SUNNY. HIGH 35. UV INDEX 7 OR HIGH.
KANANASKIS - CANMORE.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS EARLY
THIS MORNING. 60 PERCENT CHANCE OF SHOWERS LATE THIS AFTERNOON. RISK
OF A THUNDERSTORM LATE THIS AFTERNOON. HIGH 27. UV INDEX 7 OR HIGH.
TONIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF
A THUNDERSTORM. LOW 16.
THURSDAY..SUNNY EARLY IN THE MORNING THEN A MIX OF SUN AND CLOUD WITH
A FEW SHOWERS BEGINNING NEAR NOON. RISK OF A THUNDERSTORM IN THE
AFTERNOON. HIGH 28. HUMIDEX 30. UV INDEX 6 OR HIGH.
BANFF NATIONAL PARK
HIGHWAY 93 - LAKE LOUISE TO SASKATCHEWAN RIVER CROSSING.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS EARLY
THIS MORNING. 60 PERCENT CHANCE OF SHOWERS LATE THIS AFTERNOON. RISK
OF A THUNDERSTORM LATE THIS AFTERNOON. HIGH 24. UV INDEX 7 OR HIGH.
TONIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A
THUNDERSTORM THIS EVENING. LOW 8.
THURSDAY..A MIX OF SUN AND CLOUD. 60 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON WITH RISK OF A THUNDERSTORM. HIGH 27. UV INDEX 7 OR HIGH.
HIGHWAY 93 - JASPER TO SASKATCHEWAN RIVER CROSSING
JASPER NATIONAL PARK.
TODAY..A MIX OF SUN AND CLOUD WITH 40 PERCENT CHANCE OF SHOWERS. FOG
PATCHES DISSIPATING THIS MORNING. HIGH 26. UV INDEX 6 OR HIGH.
TONIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS THIS EVENING.
LOW 8.
THURSDAY..A MIX OF SUN AND CLOUD. 40 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON. HIGH 26. UV INDEX 6 OR HIGH.
NORDEGG - FORESTRY TRUNK ROAD HIGHWAY 734.
TODAY..A MIX OF SUN AND CLOUD. 60 PERCENT CHANCE OF SHOWERS EARLY
THIS MORNING AND LATE THIS AFTERNOON. RISK OF A THUNDERSTORM LATE
THIS AFTERNOON. HIGH 26. UV INDEX 6 OR HIGH.
TONIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF
A THUNDERSTORM. LOW 12.
THURSDAY..A MIX OF SUN AND CLOUD. A FEW SHOWERS BEGINNING NEAR NOON.
RISK OF A THUNDERSTORM IN THE AFTERNOON. HIGH 24. HUMIDEX 25. UV
INDEX 5 OR MODERATE.
ROCKY MOUNTAIN HOUSE - CAROLINE.
TODAY..A MIX OF SUN AND CLOUD. 60 PERCENT CHANCE OF SHOWERS EARLY
THIS MORNING. 30 PERCENT CHANCE OF SHOWERS LATE THIS AFTERNOON. RISK
OF A THUNDERSTORM LATE THIS AFTERNOON. HIGH 26. HUMIDEX 27. UV
INDEX 7 OR HIGH.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS AND RISK OF
A THUNDERSTORM. LOW 12.
THURSDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS.
RISK OF A THUNDERSTORM LATE IN THE AFTERNOON. HIGH 27. HUMIDEX 29.
UV INDEX 7 OR HIGH.
RED DEER - PONOKA - INNISFAIL - STETTLER.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS THIS
MORNING AND LATE THIS AFTERNOON. RISK OF A THUNDERSTORM. WIND
BECOMING NORTHWEST 20 KM/H GUSTING TO 40 THIS MORNING. HIGH 28
EXCEPT 31 IN A FEW LOCALITIES. HUMIDEX 30 EXCEPT 33 IN A FEW
LOCALITIES. UV INDEX 7 OR HIGH.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS AND RISK OF
A THUNDERSTORM. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT
THIS EVENING. LOW 13.
THURSDAY..MAINLY SUNNY. WIND NORTH 20 KM/H BECOMING LIGHT NEAR NOON.
HIGH 29. HUMIDEX 31. UV INDEX 7 OR HIGH.
HANNA - CORONATION - OYEN.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS EARLY
THIS MORNING AND LATE THIS AFTERNOON. RISK OF A THUNDERSTORM. WIND
SOUTHEAST 30 KM/H GUSTING TO 50. HIGH 33. UV INDEX 7 OR HIGH.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS AND RISK OF
A THUNDERSTORM. WIND SOUTHEAST 30 KM/H GUSTING TO 50 BECOMING LIGHT
THIS EVENING. LOW 15.
THURSDAY..CLEARING IN THE MORNING. HIGH 32. UV INDEX 7 OR HIGH.
MEDICINE HAT - BOW ISLAND - SUFFIELD.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS EARLY
THIS MORNING AND LATE THIS AFTERNOON. RISK OF A THUNDERSTORM. WIND
SOUTHEAST 30 KM/H GUSTING TO 50. HIGH 35. HUMIDEX 36. UV INDEX 7 OR
HIGH.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING
WITH RISK OF A THUNDERSTORM. CLEARING BEFORE MORNING. WIND SOUTHEAST
30 KM/H GUSTING TO 50 BECOMING LIGHT THIS EVENING. LOW 18.
THURSDAY..SUNNY. HIGH 36. UV INDEX 7 OR HIGH.
CYPRESS HILLS PROVINCIAL PARK - FOREMOST.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS EARLY
THIS MORNING AND LATE THIS AFTERNOON. RISK OF A THUNDERSTORM. WIND
SOUTHEAST 30 KM/H GUSTING TO 50. HIGH 33. UV INDEX 8 OR VERY HIGH.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING
WITH RISK OF A THUNDERSTORM. CLEARING BEFORE MORNING. WIND SOUTHEAST
30 KM/H GUSTING TO 50 BECOMING LIGHT THIS EVENING. LOW 17.
THURSDAY..SUNNY IN THE MORNING AND EARLY IN THE AFTERNOON THEN A MIX
OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON.
RISK OF THUNDERSTORMS IN THE AFTERNOON. HIGH 34. UV INDEX 8 OR VERY
HIGH.
LETHBRIDGE - TABER - MILK RIVER.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS EARLY
THIS MORNING AND LATE THIS AFTERNOON. RISK OF A THUNDERSTORM LATE
THIS AFTERNOON. WIND NORTHWEST 40 KM/H GUSTING TO 60 BECOMING LIGHT
THIS MORNING. HIGH 31. HUMIDEX 33. UV INDEX 7 OR HIGH.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING
WITH RISK OF A THUNDERSTORM. CLEARING BEFORE MORNING. LOW 14.
THURSDAY..MAINLY SUNNY. HIGH 33. HUMIDEX 36. UV INDEX 7 OR HIGH.
CARDSTON - FORT MACLEOD - MAGRATH.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS EARLY
THIS MORNING AND LATE THIS AFTERNOON. RISK OF A THUNDERSTORM LATE
THIS AFTERNOON. WIND LIGHT EXCEPT GUSTING TO 70 KM/H IN SHOWERS
EARLY THIS MORNING. HIGH 30. HUMIDEX 31. UV INDEX 7 OR HIGH.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING
WITH RISK OF A THUNDERSTORM. CLEARING BEFORE MORNING. LOW 14.
THURSDAY..SUNNY IN THE MORNING AND EARLY IN THE AFTERNOON THEN A MIX
OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS LATE IN THE
AFTERNOON. RISK OF A THUNDERSTORM LATE IN THE AFTERNOON. HIGH 30. UV
INDEX 7 OR HIGH.
CROWSNEST PASS - PINCHER CREEK - WATERTON LAKES NAT. PARK.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS EARLY
THIS MORNING AND LATE THIS AFTERNOON. RISK OF A THUNDERSTORM LATE
THIS AFTERNOON. HIGH 27. HUMIDEX 29. UV INDEX 7 OR HIGH.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS THIS
EVENING. BECOMING CLEAR OVERNIGHT. RISK OF A THUNDERSTORM THIS
EVENING. LOW 13.
THURSDAY..MAINLY SUNNY. HIGH 29. HUMIDEX 30. UV INDEX 7 OR HIGH.
END
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