857
FPCN15 CWWG 121630
FORECASTS FOR SOUTHERN ALBERTA AND THE MOUNTAIN PARKS ISSUED BY
ENVIRONMENT CANADA AT 11:00 A.M. MDT SATURDAY 12 SEPTEMBER 2026 FOR
TODAY AND SUNDAY.
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..CLEARING THIS AFTERNOON. HIGH 13. UV INDEX 4 OR MODERATE.
TONIGHT..PARTLY CLOUDY. FOG PATCHES DEVELOPING OVERNIGHT. LOW PLUS 3
WITH RISK OF FROST.
SUNDAY..MAINLY SUNNY. INCREASING CLOUDINESS EARLY IN THE AFTERNOON
THEN RAIN. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING
SOUTH 20 KM/H NEAR NOON. HIGH 14. UV INDEX 4 OR MODERATE.
OKOTOKS - HIGH RIVER - CLARESHOLM.
TODAY..CLOUDY WITH 40 PERCENT CHANCE OF DRIZZLE NEAR NOON THEN A MIX
OF SUN AND CLOUD. HIGH 14. UV INDEX 4 OR MODERATE.
TONIGHT..PARTLY CLOUDY. FOG PATCHES DEVELOPING OVERNIGHT. LOW PLUS 3
WITH RISK OF FROST.
SUNDAY..INCREASING CLOUDINESS. RAIN BEGINNING NEAR NOON. FOG PATCHES
DISSIPATING IN THE MORNING. HIGH 12. UV INDEX 1 OR LOW.
AIRDRIE - COCHRANE - OLDS - SUNDRE.
TODAY..MAINLY CLOUDY WITH 40 PERCENT CHANCE OF DRIZZLE NEAR NOON.
CLEARING THIS AFTERNOON. HIGH 13. UV INDEX 4 OR MODERATE.
TONIGHT..A FEW CLOUDS. FOG PATCHES DEVELOPING OVERNIGHT. WIND UP TO
15 KM/H. LOW MINUS 2 WITH FROST. WIND CHILL MINUS 4 OVERNIGHT.
SUNDAY..MAINLY SUNNY. INCREASING CLOUDINESS EARLY IN THE AFTERNOON
THEN 60 PERCENT CHANCE OF SHOWERS LATE IN THE AFTERNOON. FOG PATCHES
DISSIPATING IN THE MORNING. WIND BECOMING SOUTHEAST 20 KM/H NEAR
NOON. HIGH 17. UV INDEX 4 OR MODERATE.
DRUMHELLER - THREE HILLS.
TODAY..CLEARING THIS AFTERNOON. HIGH 15. UV INDEX 3 OR MODERATE.
TONIGHT..A FEW CLOUDS. FOG PATCHES DEVELOPING OVERNIGHT. LOW PLUS 1
WITH RISK OF FROST.
SUNDAY..MAINLY SUNNY. INCREASING CLOUDINESS EARLY IN THE AFTERNOON
THEN 30 PERCENT CHANCE OF SHOWERS LATE IN THE AFTERNOON. FOG PATCHES
DISSIPATING IN THE MORNING. WIND BECOMING SOUTHEAST 20 KM/H NEAR
NOON. HIGH 19. UV INDEX 4 OR MODERATE.
BROOKS - STRATHMORE - VULCAN.
TODAY..CLOUDY. BECOMING A MIX OF SUN AND CLOUD THIS AFTERNOON.
HIGH 14. UV INDEX 3 OR MODERATE.
TONIGHT..PARTLY CLOUDY. FOG PATCHES DEVELOPING OVERNIGHT. LOW PLUS 1
WITH RISK OF FROST.
SUNDAY..BECOMING CLOUDY IN THE MORNING. RAIN BEGINNING IN THE
AFTERNOON. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 18. UV
INDEX 4 OR MODERATE.
KANANASKIS - CANMORE.
TODAY..CLOUDY. 30 PERCENT CHANCE OF SHOWERS NEAR NOON. BECOMING A MIX
OF SUN AND CLOUD THIS AFTERNOON. SNOW LEVEL 1800 METRES. HIGH 12. UV
INDEX 3 OR MODERATE.
TONIGHT..PARTLY CLOUDY. FOG PATCHES DEVELOPING OVERNIGHT. LOW ZERO.
SUNDAY..INCREASING CLOUDINESS. RAIN BEGINNING NEAR NOON. FOG PATCHES
DISSIPATING IN THE MORNING. HIGH 12. UV INDEX 3 OR MODERATE.
BANFF NATIONAL PARK
HIGHWAY 93 - LAKE LOUISE TO SASKATCHEWAN RIVER CROSSING.
TODAY..MAINLY SUNNY. FOG PATCHES DISSIPATING NEAR NOON. HIGH 13. UV
INDEX 4 OR MODERATE.
TONIGHT..PARTLY CLOUDY. FOG PATCHES DEVELOPING OVERNIGHT. LOW ZERO.
SUNDAY..MAINLY SUNNY. INCREASING CLOUDINESS IN THE AFTERNOON THEN
60 PERCENT CHANCE OF SHOWERS LATE IN THE AFTERNOON. FOG PATCHES
DISSIPATING IN THE MORNING. HIGH 13. UV INDEX 4 OR MODERATE.
HIGHWAY 93 - JASPER TO SASKATCHEWAN RIVER CROSSING
JASPER NATIONAL PARK.
TODAY..MAINLY SUNNY. FOG PATCHES DISSIPATING NEAR NOON. HIGH 15. UV
INDEX 4 OR MODERATE.
TONIGHT..CLEAR. LOW MINUS 2.
SUNDAY..SUNNY. WIND UP TO 15 KM/H. HIGH 19. WIND CHILL MINUS 4 IN THE
MORNING. UV INDEX 4 OR MODERATE.
NORDEGG - FORESTRY TRUNK ROAD HIGHWAY 734.
TODAY..CLEARING EARLY THIS AFTERNOON. HIGH 13. UV INDEX 4 OR
MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. WIND UP TO 15 KM/H.
LOW MINUS 2. WIND CHILL MINUS 4 OVERNIGHT.
SUNDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND UP TO 15
KM/H. HIGH 17. WIND CHILL MINUS 4 IN THE MORNING. UV INDEX 5 OR
MODERATE.
ROCKY MOUNTAIN HOUSE - CAROLINE.
TODAY..CLEARING EARLY THIS AFTERNOON. HIGH 14. UV INDEX 3 OR
MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. WIND UP TO 15 KM/H.
LOW MINUS 3 WITH FROST. WIND CHILL MINUS 5 OVERNIGHT.
SUNDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING
SOUTHEAST 20 KM/H NEAR NOON. HIGH 18. WIND CHILL MINUS 5 IN THE
MORNING. UV INDEX 5 OR MODERATE.
RED DEER - PONOKA - INNISFAIL - STETTLER.
TODAY..CLOUDY. BECOMING A MIX OF SUN AND CLOUD THIS AFTERNOON.
HIGH 14. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW MINUS 1 WITH
FROST.
SUNDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE AFTERNOON. FOG
PATCHES DISSIPATING IN THE MORNING. WIND BECOMING SOUTH 20 KM/H NEAR
NOON. HIGH 18. UV INDEX 4 OR MODERATE.
HANNA - CORONATION - OYEN.
TODAY..A MIX OF SUN AND CLOUD. HIGH 14. UV INDEX 4 OR MODERATE.
TONIGHT..CLEARING LATE THIS EVENING. FOG PATCHES DEVELOPING
OVERNIGHT. WIND UP TO 15 KM/H. LOW MINUS 2 WITH FROST. WIND CHILL
MINUS 6 OVERNIGHT.
SUNDAY..SUNNY. INCREASING CLOUDINESS LATE IN THE AFTERNOON. FOG
PATCHES DISSIPATING IN THE MORNING. WIND BECOMING SOUTH 20 KM/H NEAR
NOON. HIGH 19. UV INDEX 4 OR MODERATE.
MEDICINE HAT - BOW ISLAND - SUFFIELD.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS NEAR
NOON. HIGH 15. UV INDEX 4 OR MODERATE.
TONIGHT..PARTLY CLOUDY. FOG PATCHES DEVELOPING OVERNIGHT. LOW PLUS 3
WITH RISK OF FROST.
SUNDAY..MAINLY SUNNY. INCREASING CLOUDINESS EARLY IN THE AFTERNOON
THEN 40 PERCENT CHANCE OF SHOWERS LATE IN THE AFTERNOON. FOG PATCHES
DISSIPATING IN THE MORNING. WIND BECOMING SOUTHEAST 20 KM/H NEAR
NOON. HIGH 19. UV INDEX 5 OR MODERATE.
CYPRESS HILLS PROVINCIAL PARK - FOREMOST.
TODAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY THIS
AFTERNOON. CLEARING THIS AFTERNOON. HIGH 16. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. LOW PLUS 3 WITH RISK OF FROST.
SUNDAY..SUNNY. INCREASING CLOUDINESS LATE IN THE MORNING THEN
30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. WIND SOUTHEAST
30 KM/H GUSTING TO 50. HIGH 18. UV INDEX 5 OR MODERATE.
LETHBRIDGE - TABER - MILK RIVER.
TODAY..CLOUDY. BECOMING A MIX OF SUN AND CLOUD THIS AFTERNOON.
HIGH 15. UV INDEX 4 OR MODERATE.
TONIGHT..PARTLY CLOUDY. FOG PATCHES DEVELOPING OVERNIGHT. LOW PLUS 1
WITH RISK OF FROST.
SUNDAY..INCREASING CLOUDINESS. RAIN BEGINNING NEAR NOON. FOG PATCHES
DISSIPATING IN THE MORNING. WIND BECOMING EAST 20 KM/H IN THE
MORNING. HIGH 13. UV INDEX 3 OR MODERATE.
CARDSTON - FORT MACLEOD - MAGRATH.
TODAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS NEAR NOON THEN A MIX
OF SUN AND CLOUD. HIGH 14. UV INDEX 4 OR MODERATE.
TONIGHT..PARTLY CLOUDY. FOG PATCHES DEVELOPING OVERNIGHT. LOW PLUS 1
WITH RISK OF FROST.
SUNDAY..INCREASING CLOUDINESS. RAIN BEGINNING IN THE MORNING. AMOUNT
5 MM. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 11. UV INDEX 1 OR
LOW.
CROWSNEST PASS - PINCHER CREEK - WATERTON LAKES NAT. PARK.
TODAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS NEAR NOON THEN A MIX
OF SUN AND CLOUD. HIGH 13. UV INDEX 4 OR MODERATE.
TONIGHT..BECOMING CLOUDY THIS EVENING WITH 30 PERCENT CHANCE OF
DRIZZLE LATE THIS EVENING AND OVERNIGHT. FOG PATCHES DEVELOPING
OVERNIGHT. LOW PLUS 3.
SUNDAY..CLOUDY. 30 PERCENT CHANCE OF DRIZZLE EARLY IN THE MORNING.
RAIN BEGINNING IN THE MORNING. AMOUNT 5 MM. FOG PATCHES DISSIPATING
IN THE MORNING. HIGH 8. UV INDEX 1 OR LOW.
END
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