574
FPCN15 CWWG 082130
FORECASTS FOR SOUTHERN ALBERTA AND THE MOUNTAIN PARKS ISSUED BY
ENVIRONMENT CANADA AT 4:00 P.M. MDT TUESDAY 8 SEPTEMBER 2026 FOR
TONIGHT WEDNESDAY AND WEDNESDAY NIGHT.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. MDT
WEDNESDAY.
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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 WITH 30 PERCENT CHANCE OF SHOWERS THIS
EVENING. CLEARING LATE THIS EVENING. WIND NORTH 20 KM/H GUSTING TO
40 BECOMING LIGHT THIS EVENING. LOW 11.
WEDNESDAY..MAINLY SUNNY. WIND BECOMING WEST 20 KM/H GUSTING TO 40 IN
THE MORNING. HIGH 24. UV INDEX 5 OR MODERATE.
WEDNESDAY NIGHT..PARTLY CLOUDY. WIND WEST 20 KM/H GUSTING TO 40
BECOMING LIGHT IN THE EVENING. LOW 10.
OKOTOKS - HIGH RIVER - CLARESHOLM.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS THIS EVENING
THEN CLEAR. WIND NORTH 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS
EVENING. LOW 7.
WEDNESDAY..SUNNY. WIND BECOMING SOUTHWEST 30 KM/H GUSTING TO 50 NEAR
NOON. HIGH 23. HUMIDEX 25. UV INDEX 5 OR MODERATE.
WEDNESDAY NIGHT..PARTLY CLOUDY. WIND SOUTHWEST 30 KM/H GUSTING TO 50
BECOMING LIGHT IN THE EVENING. LOW 13.
AIRDRIE - COCHRANE - OLDS - SUNDRE.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS THIS EVENING
THEN CLEAR. RISK OF A THUNDERSTORM THIS EVENING. WIND NORTH 20 KM/H
GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW PLUS 4 WITH RISK OF
FROST.
WEDNESDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE AFTERNOON.
WIND BECOMING SOUTHWEST 20 KM/H LATE IN THE MORNING. HIGH 24. UV
INDEX 5 OR MODERATE.
WEDNESDAY NIGHT..PARTLY CLOUDY. WIND SOUTHWEST 20 KM/H BECOMING LIGHT
IN THE EVENING. LOW 10.
DRUMHELLER - THREE HILLS.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS THIS
EVENING. BECOMING CLEAR OVERNIGHT. RISK OF A THUNDERSTORM THIS
EVENING. LOW 9.
WEDNESDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD LATE IN THE
AFTERNOON. WIND BECOMING SOUTHWEST 20 KM/H LATE IN THE MORNING.
HIGH 25. HUMIDEX 27. UV INDEX 5 OR MODERATE.
WEDNESDAY NIGHT..PARTLY CLOUDY. WIND SOUTHWEST 20 KM/H BECOMING LIGHT
IN THE EVENING. LOW 11.
BROOKS - STRATHMORE - VULCAN.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS THIS
EVENING. BECOMING CLEAR OVERNIGHT. RISK OF A THUNDERSTORM THIS
EVENING. WIND NORTHWEST 20 KM/H BECOMING LIGHT THIS EVENING. LOW 8.
WEDNESDAY..SUNNY. WIND BECOMING SOUTHWEST 20 KM/H LATE IN THE
MORNING. HIGH 25. HUMIDEX 27. UV INDEX 5 OR MODERATE.
WEDNESDAY NIGHT..PARTLY CLOUDY. WIND SOUTHWEST 20 KM/H BECOMING LIGHT
IN THE EVENING. LOW 12.
KANANASKIS - CANMORE.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. CLEARING THIS EVENING. LOW 7.
WEDNESDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE AFTERNOON.
WIND BECOMING WEST 40 KM/H GUSTING TO 60 IN THE MORNING. HIGH 24. UV
INDEX 5 OR MODERATE.
WEDNESDAY NIGHT..PARTLY CLOUDY. WIND WEST 40 KM/H GUSTING TO 60.
LOW 11.
BANFF NATIONAL PARK
HIGHWAY 93 - LAKE LOUISE TO SASKATCHEWAN RIVER CROSSING.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. CLEARING THIS EVENING. LOW 7.
WEDNESDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE AFTERNOON.
WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 IN THE MORNING.
HIGH 20. UV INDEX 5 OR MODERATE.
WEDNESDAY NIGHT..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS LATE IN
THE EVENING AND OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND
SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING.
LOW 11.
HIGHWAY 93 - JASPER TO SASKATCHEWAN RIVER CROSSING
JASPER NATIONAL PARK.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING THEN CLEAR. LOW 8.
WEDNESDAY..INCREASING CLOUDINESS. 30 PERCENT CHANCE OF SHOWERS LATE
IN THE AFTERNOON. WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 IN
THE MORNING. HIGH 20. UV INDEX 5 OR MODERATE.
WEDNESDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN
THE EVENING. A FEW SHOWERS BEGINNING IN THE EVENING. RISK OF A
THUNDERSTORM IN THE EVENING AND OVERNIGHT. AMOUNT 5 TO 10 MM. SNOW
LEVEL LOWERING TO 2100 METRES OVERNIGHT. WIND SOUTHWEST 20 KM/H
GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW 10.
NORDEGG - FORESTRY TRUNK ROAD HIGHWAY 734.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING THEN CLEAR. RISK OF A THUNDERSTORM EARLY THIS EVENING. LOW
PLUS 5.
WEDNESDAY..SUNNY IN THE MORNING THEN A MIX OF SUN AND CLOUD WITH
30 PERCENT CHANCE OF SHOWERS LATE IN THE AFTERNOON. WIND BECOMING
SOUTHWEST 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 22. UV INDEX 5
OR MODERATE.
WEDNESDAY NIGHT..CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE EVENING.
A FEW SHOWERS BEGINNING NEAR MIDNIGHT. RISK OF A THUNDERSTORM LATE
IN THE EVENING AND OVERNIGHT. WIND SOUTHWEST 20 KM/H GUSTING TO 40
BECOMING LIGHT IN THE EVENING. LOW 9.
ROCKY MOUNTAIN HOUSE - CAROLINE.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS THIS EVENING
AND RISK OF A THUNDERSTORM. CLEARING LATE THIS EVENING. LOW PLUS 4
WITH RISK OF FROST.
WEDNESDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE MORNING.
HIGH 23. UV INDEX 5 OR MODERATE.
WEDNESDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE
EVENING. A FEW SHOWERS BEGINNING NEAR MIDNIGHT. WIND BECOMING
NORTHWEST 30 KM/H OVERNIGHT. LOW 10.
RED DEER - PONOKA - INNISFAIL - STETTLER.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS THIS EVENING
AND RISK OF A THUNDERSTORM. CLEARING LATE THIS EVENING. WIND
NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 6.
WEDNESDAY..MAINLY SUNNY. HIGH 24. HUMIDEX 25. UV INDEX 5 OR MODERATE.
WEDNESDAY NIGHT..PARTLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS
OVERNIGHT. LOW 9.
HANNA - CORONATION - OYEN.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING
WITH RISK OF A THUNDERSTORM. WIND NORTHWEST 20 KM/H GUSTING TO 40
BECOMING LIGHT THIS EVENING. LOW 7.
WEDNESDAY..SUNNY. WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 LATE
IN THE MORNING. HIGH 22. UV INDEX 5 OR MODERATE.
WEDNESDAY NIGHT..PARTLY CLOUDY. WIND SOUTHWEST 20 KM/H GUSTING TO 40
BECOMING LIGHT IN THE EVENING. LOW 11.
MEDICINE HAT - BOW ISLAND - SUFFIELD.
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 10.
WEDNESDAY..SUNNY. WIND BECOMING SOUTHWEST 20 KM/H LATE IN THE
MORNING. HIGH 23. HUMIDEX 25. UV INDEX 5 OR MODERATE.
WEDNESDAY NIGHT..A FEW CLOUDS. WIND SOUTHWEST 20 KM/H BECOMING LIGHT
IN THE EVENING. LOW 12.
CYPRESS HILLS PROVINCIAL PARK - FOREMOST.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS AND RISK OF
A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40. LOW 8.
WEDNESDAY..SUNNY. WIND WEST 20 KM/H GUSTING TO 40. HIGH 23. UV
INDEX 5 OR MODERATE.
WEDNESDAY NIGHT..A FEW CLOUDS. WIND WEST 20 KM/H GUSTING TO 40
BECOMING LIGHT IN THE EVENING. LOW 10.
LETHBRIDGE - TABER - MILK RIVER.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING
WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40.
LOW 11.
WEDNESDAY..SUNNY. WIND SOUTHWEST 20 KM/H INCREASING TO 40 GUSTING TO
60 NEAR NOON. HIGH 24. HUMIDEX 26. UV INDEX 5 OR MODERATE.
WEDNESDAY NIGHT..CLEAR. BECOMING PARTLY CLOUDY IN THE EVENING. WIND
SOUTHWEST 40 KM/H GUSTING TO 60 BECOMING LIGHT IN THE EVENING.
LOW 15.
CARDSTON - FORT MACLEOD - MAGRATH.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING.
CLEARING BEFORE MORNING. WIND WEST 30 KM/H GUSTING TO 50. LOW 11.
WEDNESDAY..SUNNY. WIND WEST 20 KM/H INCREASING TO 40 GUSTING TO 60 IN
THE MORNING. HIGH 23. UV INDEX 5 OR MODERATE.
WEDNESDAY NIGHT..PARTLY CLOUDY. WIND WEST 40 KM/H GUSTING TO 60
BECOMING LIGHT IN THE EVENING EXCEPT GUSTING TO 70 NEAR WATERTON
LAKES NATIONAL PARK LATE IN THE EVENING AND OVERNIGHT. LOW 15.
CROWSNEST PASS - PINCHER CREEK - WATERTON LAKES NAT. PARK.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. WIND WEST 30 KM/H GUSTING TO 50. LOW 11.
WEDNESDAY..MAINLY SUNNY. WIND WEST 40 KM/H GUSTING TO 60. HIGH 22. UV
INDEX 5 OR MODERATE.
WEDNESDAY NIGHT..PARTLY CLOUDY. WIND WEST 50 KM/H GUSTING TO 70.
LOW 14.
END
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