531
FPCN15 CWWG 232130
FORECASTS FOR SOUTHERN ALBERTA AND THE MOUNTAIN PARKS ISSUED BY
ENVIRONMENT CANADA AT 4:00 P.M. MDT SATURDAY 23 MAY 2026 FOR TONIGHT
SUNDAY AND SUNDAY NIGHT.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. MDT SUNDAY.
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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.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING
TO 40 BECOMING LIGHT THIS EVENING. LOW 8.
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON. WIND BECOMING WEST 20 KM/H GUSTING TO 40 IN THE
AFTERNOON. HIGH 22. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY
IN THE EVENING. OTHERWISE CLEAR. WIND WEST 20 KM/H GUSTING TO 40
BECOMING LIGHT IN THE EVENING. LOW 9.
OKOTOKS - HIGH RIVER - CLARESHOLM.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING
TO 40 BECOMING LIGHT THIS EVENING. LOW 9.
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON. WIND BECOMING WEST 20 KM/H GUSTING TO 40 IN THE
AFTERNOON. HIGH 23. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY
IN THE EVENING. OTHERWISE CLEAR. WIND WEST 20 KM/H GUSTING TO 40
BECOMING LIGHT IN THE EVENING. LOW 7.
AIRDRIE - COCHRANE - OLDS - SUNDRE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING
TO 40 BECOMING LIGHT THIS EVENING. LOW PLUS 5.
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON. WIND BECOMING WEST 20 KM/H GUSTING TO 40 IN THE
AFTERNOON. HIGH 19. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY
IN THE EVENING. CLEARING IN THE EVENING. WIND WEST 20 KM/H GUSTING
TO 40 BECOMING LIGHT IN THE EVENING. LOW PLUS 3 WITH RISK OF FROST.
DRUMHELLER - THREE HILLS.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING
TO 40 BECOMING LIGHT THIS EVENING. WIND BECOMING NORTHWEST 20
GUSTING TO 40 NEAR MIDNIGHT. LOW 9.
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON. HIGH 23. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY
IN THE EVENING. OTHERWISE CLEAR. LOW 6.
BROOKS - STRATHMORE - VULCAN.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING
TO 40 BECOMING LIGHT THIS EVENING. LOW 10.
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON. HIGH 24. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY
IN THE EVENING. CLEARING IN THE EVENING. LOW 8.
KANANASKIS - CANMORE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING
TO 40 BECOMING LIGHT THIS EVENING. LOW 11.
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON. WIND BECOMING WEST 30 KM/H GUSTING TO 50 IN THE MORNING.
HIGH 20. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN
THE EVENING. WIND WEST 30 KM/H GUSTING TO 50 BECOMING LIGHT IN THE
EVENING. LOW 9.
BANFF NATIONAL PARK
HIGHWAY 93 - LAKE LOUISE TO SASKATCHEWAN RIVER CROSSING.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. WIND
SOUTHWEST 20 KM/H BECOMING LIGHT THIS EVENING. LOW PLUS 5.
SUNDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. WIND
BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 15. UV
INDEX 5 OR MODERATE.
SUNDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN
THE EVENING. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN
THE EVENING. LOW PLUS 5.
HIGHWAY 93 - JASPER TO SASKATCHEWAN RIVER CROSSING
JASPER NATIONAL PARK.
TONIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A
THUNDERSTORM THIS EVENING. SNOW LEVEL LOWERING TO 2100 METRES NEAR
MIDNIGHT. LOW 7.
SUNDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. SNOW LEVEL
2100 METRES RISING TO 2500 METRES NEAR NOON. WIND BECOMING SOUTHWEST
20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 18. UV INDEX 5 OR
MODERATE.
SUNDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN
THE EVENING. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN
THE EVENING. LOW 7.
NORDEGG - FORESTRY TRUNK ROAD HIGHWAY 734.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. WIND WEST
20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW PLUS 4.
SUNDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS.
WIND BECOMING WEST 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 18. UV
INDEX 5 OR MODERATE.
SUNDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN
THE EVENING. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE
EVENING. LOW PLUS 5.
ROCKY MOUNTAIN HOUSE - CAROLINE.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. RISK OF A
THUNDERSTORM THIS EVENING. WIND WEST 20 KM/H GUSTING TO 40 BECOMING
LIGHT THIS EVENING. LOW 6.
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS LATE IN
THE MORNING AND IN THE AFTERNOON. HIGH 20. UV INDEX 5 OR MODERATE.
SUNDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN
THE EVENING. LOW PLUS 3 WITH RISK OF FROST.
RED DEER - PONOKA - INNISFAIL - STETTLER.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. RISK OF A
THUNDERSTORM EARLY THIS EVENING. WIND SOUTHWEST 20 KM/H GUSTING TO
40 BECOMING LIGHT THIS EVENING. WIND BECOMING NORTHWEST 20 GUSTING
TO 40 AFTER MIDNIGHT. LOW 7.
SUNDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS.
HIGH 20. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN
THE EVENING. LOW PLUS 5.
HANNA - CORONATION - OYEN.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING
WITH RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING TO 40
BECOMING LIGHT THIS EVENING. WIND BECOMING NORTH 20 GUSTING TO 40
BEFORE MORNING. LOW 7.
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS LATE IN
THE AFTERNOON. WIND NORTH 20 KM/H GUSTING TO 40 BECOMING LIGHT IN
THE MORNING. HIGH 20. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE
EVENING. LOW 7.
MEDICINE HAT - BOW ISLAND - SUFFIELD.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING
WITH RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING TO 40.
LOW 12.
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS LATE IN
THE AFTERNOON. WIND BECOMING WEST 20 KM/H GUSTING TO 40 IN THE
AFTERNOON. HIGH 28. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE
EVENING. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE
EVENING. LOW 10.
CYPRESS HILLS PROVINCIAL PARK - FOREMOST.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS THIS EVENING
AND RISK OF A THUNDERSTORM. CLEARING LATE THIS EVENING. WIND
SOUTHWEST 20 KM/H GUSTING TO 40. LOW 10.
SUNDAY..MAINLY SUNNY. WIND BECOMING WEST 30 KM/H GUSTING TO 50 NEAR
NOON. HIGH 27. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..CLEAR. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT
NEAR MIDNIGHT. LOW 11.
LETHBRIDGE - TABER - MILK RIVER.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. WIND WEST 30 KM/H GUSTING TO
50. LOW 10.
SUNDAY..MAINLY SUNNY. WIND WEST 30 KM/H GUSTING TO 50. HIGH 25. UV
INDEX 6 OR HIGH.
SUNDAY NIGHT..CLEAR. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT
NEAR MIDNIGHT. LOW 9.
CARDSTON - FORT MACLEOD - MAGRATH.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. WIND WEST 30 KM/H GUSTING TO
50. LOW 13.
SUNDAY..MAINLY SUNNY. WIND BECOMING WEST 40 KM/H GUSTING TO 60 LATE
IN THE MORNING. HIGH 23. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..CLEAR. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING
LIGHT IN THE EVENING. LOW 10.
CROWSNEST PASS - PINCHER CREEK - WATERTON LAKES NAT. PARK.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. WIND WEST 30 KM/H GUSTING TO
50. LOW 10.
SUNDAY..MAINLY SUNNY. WIND BECOMING WEST 40 KM/H GUSTING TO 60 IN THE
MORNING. HIGH 22. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..CLEAR. WIND WEST 40 KM/H GUSTING TO 60 DIMINISHING TO
20 IN THE EVENING THEN BECOMING LIGHT OVERNIGHT. LOW 8.
END
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