642
FPCN15 CWWG 141643
FORECASTS FOR SOUTHERN ALBERTA AND THE MOUNTAIN PARKS ISSUED BY
ENVIRONMENT CANADA AT 11:00 A.M. MDT SUNDAY 14 SEPTEMBER 2025 FOR
TODAY AND MONDAY.
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..SUNNY EARLY THIS AFTERNOON THEN A MIX OF SUN AND CLOUD WITH
30 PERCENT CHANCE OF SHOWERS LATE THIS AFTERNOON. RISK OF A
THUNDERSTORM LATE THIS AFTERNOON. WIND BECOMING WEST 20 KM/H GUSTING
TO 40 THIS AFTERNOON. HIGH 26. UV INDEX 5 OR MODERATE.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40
BECOMING LIGHT THIS EVENING. LOW 15.
MONDAY..MAINLY CLOUDY. CLEARING LATE IN THE AFTERNOON. WIND BECOMING
NORTH 20 KM/H GUSTING TO 40 NEAR NOON. HIGH 22. UV INDEX 4 OR
MODERATE.
OKOTOKS - HIGH RIVER - CLARESHOLM.
TODAY..SUNNY EARLY THIS AFTERNOON THEN A MIX OF SUN AND CLOUD WITH
30 PERCENT CHANCE OF SHOWERS LATE THIS AFTERNOON. RISK OF A
THUNDERSTORM LATE THIS AFTERNOON. WIND BECOMING WEST 20 KM/H GUSTING
TO 40 THIS AFTERNOON. HIGH 27. UV INDEX 5 OR MODERATE.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING.
RISK OF A THUNDERSTORM EARLY THIS EVENING. WIND WEST 20 KM/H GUSTING
TO 40 BECOMING LIGHT THIS EVENING. LOW 15.
MONDAY..CLOUDY. HIGH 21. UV INDEX 3 OR MODERATE.
AIRDRIE - COCHRANE - OLDS - SUNDRE.
TODAY..SUNNY EARLY THIS AFTERNOON THEN A MIX OF SUN AND CLOUD WITH
30 PERCENT CHANCE OF SHOWERS LATE THIS AFTERNOON. RISK OF A
THUNDERSTORM LATE THIS AFTERNOON. WIND BECOMING WEST 20 KM/H GUSTING
TO 40 THIS AFTERNOON. HIGH 24. HUMIDEX 26. UV INDEX 5 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40
BECOMING LIGHT THIS EVENING. LOW 10.
MONDAY..CLOUDY. CLEARING NEAR NOON. WIND BECOMING NORTHWEST 20 KM/H
GUSTING TO 40 NEAR NOON. HIGH 21. UV INDEX 5 OR MODERATE.
DRUMHELLER - THREE HILLS.
TODAY..SUNNY EARLY THIS AFTERNOON THEN A MIX OF SUN AND CLOUD WITH
30 PERCENT CHANCE OF SHOWERS LATE THIS AFTERNOON. RISK OF A
THUNDERSTORM LATE THIS AFTERNOON. HIGH 29. UV INDEX 5 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. LOW 12.
MONDAY..MAINLY CLOUDY. WIND BECOMING NORTHWEST 20 KM/H GUSTING TO 40
NEAR NOON. HIGH 23. UV INDEX 4 OR MODERATE.
BROOKS - STRATHMORE - VULCAN.
TODAY..SUNNY THEN A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF
SHOWERS LATE THIS AFTERNOON. RISK OF A THUNDERSTORM LATE THIS
AFTERNOON. HIGH 28. HUMIDEX 29. UV INDEX 5 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. LOW 12.
MONDAY..MAINLY CLOUDY. WIND BECOMING NORTH 20 KM/H GUSTING TO 40 NEAR
NOON. HIGH 23. HUMIDEX 26. UV INDEX 4 OR MODERATE.
KANANASKIS - CANMORE.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS LATE THIS
AFTERNOON WITH RISK OF A THUNDERSTORM. HIGH 23. UV INDEX 5 OR
MODERATE.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. LOCAL SMOKE LATE THIS EVENING
AND OVERNIGHT. LOW 12.
MONDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE AFTERNOON.
CLEARING LATE IN THE AFTERNOON. RISK OF A THUNDERSTORM IN THE
AFTERNOON. LOCAL SMOKE IN THE MORNING. HIGH 18. UV INDEX 2 OR LOW.
BANFF NATIONAL PARK
HIGHWAY 93 - LAKE LOUISE TO SASKATCHEWAN RIVER CROSSING.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS LATE THIS
AFTERNOON WITH RISK OF A THUNDERSTORM. HIGH 22. UV INDEX 5 OR
MODERATE.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. LOCAL SMOKE LATE THIS EVENING
AND OVERNIGHT. LOW 10.
MONDAY..MAINLY CLOUDY. LOCAL SMOKE IN THE MORNING. HIGH 16. UV
INDEX 4 OR MODERATE.
HIGHWAY 93 - JASPER TO SASKATCHEWAN RIVER CROSSING
JASPER NATIONAL PARK.
TODAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. RISK OF A
THUNDERSTORM LATE THIS AFTERNOON. HIGH 21. UV INDEX 3 OR MODERATE.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. LOW 11.
MONDAY..SUNNY. HIGH 22. UV INDEX 4 OR MODERATE.
NORDEGG - FORESTRY TRUNK ROAD HIGHWAY 734.
TODAY..CLOUDY. 30 PERCENT CHANCE OF SHOWERS WITH RISK OF A
THUNDERSTORM. HIGH 20. UV INDEX 3 OR MODERATE.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. LOW 10.
MONDAY..CLEARING NEAR NOON. HIGH 19. UV INDEX 4 OR MODERATE.
ROCKY MOUNTAIN HOUSE - CAROLINE.
TODAY..SUNNY NEAR NOON THEN A MIX OF SUN AND CLOUD WITH 30 PERCENT
CHANCE OF SHOWERS LATE THIS AFTERNOON. RISK OF A THUNDERSTORM LATE
THIS AFTERNOON. HIGH 25. HUMIDEX 27. UV INDEX 5 OR MODERATE.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. LOW 11.
MONDAY..MAINLY CLOUDY. CLEARING EARLY IN THE AFTERNOON. WIND BECOMING
NORTHWEST 20 KM/H GUSTING TO 40 NEAR NOON. HIGH 21. UV INDEX 4 OR
MODERATE.
RED DEER - PONOKA - INNISFAIL - STETTLER.
TODAY..SUNNY EARLY THIS AFTERNOON THEN A MIX OF SUN AND CLOUD WITH
30 PERCENT CHANCE OF SHOWERS LATE THIS AFTERNOON. RISK OF A
THUNDERSTORM LATE THIS AFTERNOON. FOG PATCHES DISSIPATING NEAR NOON.
HIGH 26. HUMIDEX 27. UV INDEX 5 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. LOW 11.
MONDAY..MAINLY CLOUDY. CLEARING IN THE AFTERNOON. WIND BECOMING
NORTHWEST 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 22. UV INDEX 4
OR MODERATE.
HANNA - CORONATION - OYEN.
TODAY..SUNNY. A MIX OF SUN AND CLOUD LATE THIS AFTERNOON WITH
30 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM LATE THIS
AFTERNOON. FOG PATCHES DISSIPATING NEAR NOON. HIGH 27. HUMIDEX 28.
UV INDEX 5 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. LOW 10.
MONDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON WITH RISK OF A THUNDERSTORM. WIND BECOMING NORTHWEST
20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 25. HUMIDEX 27. UV
INDEX 5 OR MODERATE.
MEDICINE HAT - BOW ISLAND - SUFFIELD.
TODAY..SUNNY NEAR NOON THEN A MIX OF SUN AND CLOUD WITH 30 PERCENT
CHANCE OF SHOWERS LATE THIS AFTERNOON. RISK OF A THUNDERSTORM LATE
THIS AFTERNOON. HIGH 29. UV INDEX 5 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. LOW 11.
MONDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON
WITH RISK OF A THUNDERSTORM. WIND BECOMING NORTHWEST 20 KM/H IN THE
AFTERNOON. HIGH 24. HUMIDEX 26. UV INDEX 5 OR MODERATE.
CYPRESS HILLS PROVINCIAL PARK - FOREMOST.
TODAY..SUNNY. HIGH 28. UV INDEX 5 OR MODERATE.
TONIGHT..CLEAR. BECOMING PARTLY CLOUDY THIS EVENING. LOW 12.
MONDAY..CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON WITH
RISK OF A THUNDERSTORM. WIND BECOMING WEST 20 KM/H IN THE MORNING.
HIGH 21. UV INDEX 4 OR MODERATE.
LETHBRIDGE - TABER - MILK RIVER.
TODAY..SUNNY. WIND BECOMING WEST 20 KM/H GUSTING TO 40 EARLY THIS
AFTERNOON. HIGH 28. UV INDEX 5 OR MODERATE.
TONIGHT..INCREASING CLOUDINESS NEAR MIDNIGHT. WIND WEST 20 KM/H
GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 13.
MONDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON
WITH RISK OF A THUNDERSTORM. WIND BECOMING NORTHWEST 20 KM/H IN THE
MORNING. HIGH 21. UV INDEX 5 OR MODERATE.
CARDSTON - FORT MACLEOD - MAGRATH.
TODAY..MAINLY SUNNY. WIND BECOMING WEST 20 KM/H GUSTING TO 40 EARLY
THIS AFTERNOON. HIGH 26. UV INDEX 5 OR MODERATE.
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT THEN
60 PERCENT CHANCE OF SHOWERS BEFORE MORNING. WIND WEST 20 KM/H
GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 12.
MONDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A
THUNDERSTORM IN THE AFTERNOON. HIGH 16. UV INDEX 2 OR LOW.
CROWSNEST PASS - PINCHER CREEK - WATERTON LAKES NAT. PARK.
TODAY..A MIX OF SUN AND CLOUD. WIND WEST 20 KM/H GUSTING TO 40.
HIGH 26. UV INDEX 5 OR MODERATE.
TONIGHT..BECOMING CLOUDY THIS EVENING. 60 PERCENT CHANCE OF SHOWERS
BEFORE MORNING. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS
EVENING. LOW 11.
MONDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A
THUNDERSTORM IN THE AFTERNOON. HIGH 17. UV INDEX 4 OR MODERATE.
END
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