901
FPCN15 CWWG 152133
FORECASTS FOR SOUTHERN ALBERTA AND THE MOUNTAIN PARKS ISSUED BY
ENVIRONMENT CANADA AT 4:00 P.M. MDT MONDAY 15 SEPTEMBER 2025 FOR
TONIGHT TUESDAY AND TUESDAY NIGHT.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. MDT TUESDAY.
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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. WIND NORTH 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS
EVENING. LOW 9.
TUESDAY..SUNNY. HIGH 24. UV INDEX 5 OR MODERATE.
TUESDAY NIGHT..CLEAR. LOW 10.
OKOTOKS - HIGH RIVER - CLARESHOLM.
TONIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. RISK OF A THUNDERSTORM EARLY THIS EVENING. FOG PATCHES
DEVELOPING OVERNIGHT. WIND NORTH 20 KM/H GUSTING TO 40 BECOMING
LIGHT THIS EVENING. LOW 9.
TUESDAY..A MIX OF SUN AND CLOUD. BECOMING SUNNY IN THE MORNING. FOG
PATCHES DISSIPATING IN THE MORNING. HIGH 24. HUMIDEX 25. UV INDEX 5
OR MODERATE.
TUESDAY NIGHT..CLEAR. LOW 6.
AIRDRIE - COCHRANE - OLDS - SUNDRE.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. CLEARING THIS EVENING. FOG PATCHES DEVELOPING OVERNIGHT.
WIND NORTH 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW
PLUS 4 WITH RISK OF FROST.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 24.
HUMIDEX 26. UV INDEX 5 OR MODERATE.
TUESDAY NIGHT..CLEAR. LOW 6.
DRUMHELLER - THREE HILLS.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING THEN CLEAR. RISK OF A THUNDERSTORM EARLY THIS EVENING. WIND
NORTH 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 7.
TUESDAY..SUNNY. HIGH 25. HUMIDEX 26. UV INDEX 5 OR MODERATE.
TUESDAY NIGHT..CLEAR. LOW 6.
BROOKS - STRATHMORE - VULCAN.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. CLEARING THIS EVENING. RISK OF A THUNDERSTORM EARLY THIS
EVENING. WIND NORTH 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS
EVENING. LOW 8.
TUESDAY..SUNNY. HIGH 25. HUMIDEX 26. UV INDEX 5 OR MODERATE.
TUESDAY NIGHT..CLEAR. LOW PLUS 5.
KANANASKIS - CANMORE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. CLEARING BEFORE MORNING. RISK OF A THUNDERSTORM EARLY THIS
EVENING. FOG PATCHES DEVELOPING OVERNIGHT. LOW 8.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 25.
HUMIDEX 26. UV INDEX 5 OR MODERATE.
TUESDAY NIGHT..CLEAR. LOW 8.
BANFF NATIONAL PARK
HIGHWAY 93 - LAKE LOUISE TO SASKATCHEWAN RIVER CROSSING.
TONIGHT..PARTLY CLOUDY. FOG PATCHES DEVELOPING OVERNIGHT. LOW 9.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 23. UV
INDEX 5 OR MODERATE.
TUESDAY NIGHT..CLEAR. LOW 6.
HIGHWAY 93 - JASPER TO SASKATCHEWAN RIVER CROSSING
JASPER NATIONAL PARK.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW PLUS 2.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 25. UV
INDEX 5 OR MODERATE.
TUESDAY NIGHT..CLEAR. LOW PLUS 5.
NORDEGG - FORESTRY TRUNK ROAD HIGHWAY 734.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. CLEARING OVERNIGHT. RISK OF A THUNDERSTORM EARLY THIS
EVENING. FOG PATCHES DEVELOPING OVERNIGHT. LOW PLUS 5.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 23.
HUMIDEX 25. UV INDEX 5 OR MODERATE.
TUESDAY NIGHT..CLEAR. LOW PLUS 4.
ROCKY MOUNTAIN HOUSE - CAROLINE.
TONIGHT..A FEW CLOUDS. LOW PLUS 5.
TUESDAY..SUNNY. HIGH 23. HUMIDEX 25. UV INDEX 5 OR MODERATE.
TUESDAY NIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW 6.
RED DEER - PONOKA - INNISFAIL - STETTLER.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. BECOMING CLEAR OVERNIGHT. WIND NORTHWEST 20 KM/H GUSTING TO
40 BECOMING LIGHT THIS EVENING. LOW PLUS 4 WITH RISK OF FROST.
TUESDAY..SUNNY. HIGH 24. UV INDEX 5 OR MODERATE.
TUESDAY NIGHT..CLEAR. LOW 7.
HANNA - CORONATION - OYEN.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING THEN CLEAR. RISK OF A THUNDERSTORM EARLY THIS EVENING. WIND
NORTH 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 6.
TUESDAY..SUNNY. HIGH 24. UV INDEX 4 OR MODERATE.
TUESDAY NIGHT..CLEAR. LOW PLUS 5.
MEDICINE HAT - BOW ISLAND - SUFFIELD.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING THEN CLEAR. RISK OF A THUNDERSTORM EARLY THIS EVENING. WIND
NORTH 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 11.
TUESDAY..SUNNY. HIGH 25. UV INDEX 5 OR MODERATE.
TUESDAY NIGHT..CLEAR. LOW 6.
CYPRESS HILLS PROVINCIAL PARK - FOREMOST.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS THIS
EVENING. BECOMING CLEAR OVERNIGHT. RISK OF A THUNDERSTORM EARLY THIS
EVENING. WIND WEST 30 KM/H GUSTING TO 50 BECOMING LIGHT THIS
EVENING. LOW 11.
TUESDAY..SUNNY. HIGH 25. UV INDEX 5 OR MODERATE.
TUESDAY NIGHT..CLEAR. LOW 8.
LETHBRIDGE - TABER - MILK RIVER.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. CLEARING
BEFORE MORNING. RISK OF A THUNDERSTORM EARLY THIS EVENING. WIND
NORTHWEST 30 KM/H GUSTING TO 50 BECOMING LIGHT THIS EVENING. LOW 10.
TUESDAY..SUNNY. HIGH 26. UV INDEX 5 OR MODERATE.
TUESDAY NIGHT..CLEAR. LOW 7.
CARDSTON - FORT MACLEOD - MAGRATH.
TONIGHT..PERIODS OF RAIN ENDING LATE THIS EVENING THEN 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 10.
TUESDAY..SUNNY. HIGH 24. UV INDEX 5 OR MODERATE.
TUESDAY NIGHT..CLEAR. LOW 6.
CROWSNEST PASS - PINCHER CREEK - WATERTON LAKES NAT. PARK.
TONIGHT..PERIODS OF RAIN ENDING LATE THIS EVENING THEN MAINLY 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 9.
TUESDAY..CLEARING IN THE MORNING. HIGH 24. UV INDEX 5 OR MODERATE.
TUESDAY NIGHT..CLEAR. LOW 8.
END
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