802
FPCN15 CWWG 182130
FORECASTS FOR SOUTHERN ALBERTA AND THE MOUNTAIN PARKS ISSUED BY
ENVIRONMENT CANADA AT 4:00 P.M. MDT FRIDAY 18 JULY 2025 FOR TONIGHT
SATURDAY AND SATURDAY NIGHT.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. MDT SATURDAY.
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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..MAINLY CLOUDY. A FEW SHOWERS BEGINNING EARLY THIS EVENING
AND ENDING BEFORE MORNING. RISK OF A SEVERE THUNDERSTORM. AMOUNT 5
TO 10 MM. FOG PATCHES DEVELOPING OVERNIGHT. WIND SOUTHEAST 20 KM/H
BECOMING LIGHT THIS EVENING. LOW 10.
SATURDAY..A MIX OF SUN AND CLOUD. BECOMING CLOUDY IN THE AFTERNOON
WITH 60 PERCENT CHANCE OF SHOWERS LATE IN THE AFTERNOON. RISK OF A
THUNDERSTORM LATE IN THE AFTERNOON. FOG PATCHES DISSIPATING IN THE
MORNING. HIGH 20. UV INDEX 7 OR HIGH.
SATURDAY NIGHT..SHOWERS. RISK OF A THUNDERSTORM IN THE EVENING.
AMOUNT 5 MM. LOW 12.
OKOTOKS - HIGH RIVER - CLARESHOLM.
TONIGHT..A FEW SHOWERS ENDING AFTER MIDNIGHT THEN PARTLY CLOUDY. RISK
OF A SEVERE THUNDERSTORM THIS EVENING AND AFTER MIDNIGHT. AMOUNT 5
TO 10 MM. FOG PATCHES DEVELOPING OVERNIGHT. WIND SOUTHEAST 20 KM/H
BECOMING LIGHT THIS EVENING. LOW 11.
SATURDAY..A MIX OF SUN AND CLOUD. BECOMING CLOUDY IN THE AFTERNOON
WITH 60 PERCENT CHANCE OF SHOWERS LATE IN THE AFTERNOON. RISK OF A
THUNDERSTORM LATE IN THE AFTERNOON. FOG PATCHES DISSIPATING IN THE
MORNING. HIGH 22. UV INDEX 7 OR HIGH.
SATURDAY NIGHT..SHOWERS. RISK OF A THUNDERSTORM IN THE EVENING.
AMOUNT 5 MM. LOW 11.
AIRDRIE - COCHRANE - OLDS - SUNDRE.
TONIGHT..SHOWERS OR THUNDERSTORMS ENDING AFTER MIDNIGHT THEN PARTLY
CLOUDY. RISK OF A SEVERE THUNDERSTORM THIS EVENING AND AFTER
MIDNIGHT. AMOUNT 10 TO 20 MM. FOG PATCHES DEVELOPING OVERNIGHT. WIND
SOUTHEAST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 7.
SATURDAY..A MIX OF SUN AND CLOUD. BECOMING CLOUDY IN THE AFTERNOON
WITH 60 PERCENT CHANCE OF SHOWERS LATE IN THE AFTERNOON. RISK OF A
THUNDERSTORM LATE IN THE AFTERNOON. FOG PATCHES DISSIPATING IN THE
MORNING. WIND BECOMING NORTH 20 KM/H IN THE AFTERNOON. HIGH 19. UV
INDEX 7 OR HIGH.
SATURDAY NIGHT..SHOWERS. RISK OF A THUNDERSTORM IN THE EVENING.
AMOUNT 5 MM. LOW 10.
DRUMHELLER - THREE HILLS.
TONIGHT..BECOMING CLOUDY THIS EVENING WITH SHOWERS OR THUNDERSTORMS.
RISK OF A SEVERE THUNDERSTORM. AMOUNT 10 TO 20 MM. FOG PATCHES
DEVELOPING OVERNIGHT. WIND SOUTHEAST 20 KM/H BECOMING LIGHT THIS
EVENING. LOW 13.
SATURDAY..A MIX OF SUN AND CLOUD. 60 PERCENT CHANCE OF SHOWERS LATE
IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. FOG PATCHES
DISSIPATING IN THE MORNING. HIGH 24. HUMIDEX 26. UV INDEX 7 OR HIGH.
SATURDAY NIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK
OF A THUNDERSTORM IN THE EVENING. LOW 13.
BROOKS - STRATHMORE - VULCAN.
TONIGHT..BECOMING CLOUDY THIS EVENING WITH SHOWERS. RISK OF A SEVERE
THUNDERSTORM. AMOUNT 5 TO 10 MM. FOG PATCHES DEVELOPING OVERNIGHT.
WIND SOUTHEAST 20 KM/H BECOMING LIGHT THIS EVENING. LOW 13.
SATURDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS LATE
IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. FOG PATCHES
DISSIPATING IN THE MORNING. HIGH 24. HUMIDEX 26. UV INDEX 7 OR HIGH.
SATURDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK
OF A THUNDERSTORM IN THE EVENING. LOW 13.
KANANASKIS - CANMORE.
TONIGHT..A FEW SHOWERS ENDING NEAR MIDNIGHT THEN PARTLY CLOUDY. RISK
OF A SEVERE THUNDERSTORM THIS EVENING. AMOUNT 5 TO 10 MM. FOG
PATCHES DEVELOPING OVERNIGHT. LOW 8.
SATURDAY..A MIX OF SUN AND CLOUD. BECOMING CLOUDY IN THE AFTERNOON
WITH 60 PERCENT CHANCE OF SHOWERS LATER IN THE AFTERNOON. RISK OF A
THUNDERSTORM IN THE AFTERNOON. FOG PATCHES DISSIPATING IN THE
MORNING. HIGH 21. UV INDEX 7 OR HIGH.
SATURDAY NIGHT..SHOWERS. RISK OF A THUNDERSTORM IN THE EVENING.
AMOUNT 5 MM. LOW 9.
BANFF NATIONAL PARK
HIGHWAY 93 - LAKE LOUISE TO SASKATCHEWAN RIVER CROSSING.
TONIGHT..A FEW SHOWERS ENDING NEAR MIDNIGHT THEN PARTLY CLOUDY WITH
30 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING.
AMOUNT 5 TO 10 MM. LOW 8.
SATURDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS IN THE
MORNING. A FEW SHOWERS BEGINNING NEAR NOON. HIGH 18. UV INDEX 6 OR
HIGH.
SATURDAY NIGHT..SHOWERS. LOW 9.
HIGHWAY 93 - JASPER TO SASKATCHEWAN RIVER CROSSING
JASPER NATIONAL PARK.
TONIGHT..SHOWERS. RISK OF A THUNDERSTORM THIS EVENING. AMOUNT 5 TO
10 MM. LOW 7.
SATURDAY..SHOWERS. AMOUNT 10 MM. HIGH 20. UV INDEX 3 OR MODERATE.
SATURDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW 10.
NORDEGG - FORESTRY TRUNK ROAD HIGHWAY 734.
TONIGHT..SHOWERS OR THUNDERSTORMS ENDING NEAR MIDNIGHT THEN PARTLY
CLOUDY. RISK OF A SEVERE THUNDERSTORM THIS EVENING. AMOUNT 5 TO
10 MM. FOG PATCHES DEVELOPING OVERNIGHT. WIND SOUTHEAST 20 KM/H
GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 9.
SATURDAY..A MIX OF SUN AND CLOUD. BECOMING CLOUDY NEAR NOON WITH
SHOWERS. RISK OF A THUNDERSTORM IN THE AFTERNOON. AMOUNT 5 TO 10 MM.
FOG PATCHES DISSIPATING IN THE MORNING. HIGH 17. UV INDEX 5 OR
MODERATE.
SATURDAY NIGHT..SHOWERS. RISK OF A THUNDERSTORM IN THE EVENING.
AMOUNT 5 MM. LOW 8.
ROCKY MOUNTAIN HOUSE - CAROLINE.
TONIGHT..SHOWERS OR THUNDERSTORMS ENDING AFTER MIDNIGHT THEN PARTLY
CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. RISK OF A SEVERE
THUNDERSTORM THIS EVENING AND AFTER MIDNIGHT. AMOUNT 10 TO 20 MM.
FOG PATCHES DEVELOPING OVERNIGHT. WIND SOUTHEAST 20 KM/H GUSTING TO
40 BECOMING LIGHT THIS EVENING. LOW 10.
SATURDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS IN THE
MORNING. SHOWERS BEGINNING NEAR NOON. RISK OF A THUNDERSTORM IN THE
AFTERNOON. AMOUNT 5 TO 10 MM. FOG PATCHES DISSIPATING IN THE
MORNING. WIND BECOMING NORTHWEST 20 KM/H GUSTING TO 40 IN THE
AFTERNOON. HIGH 20. UV INDEX 6 OR HIGH.
SATURDAY NIGHT..SHOWERS. AMOUNT 5 MM. WIND NORTHWEST 20 KM/H GUSTING
TO 40 BECOMING LIGHT IN THE EVENING. LOW 10.
RED DEER - PONOKA - INNISFAIL - STETTLER.
TONIGHT..INCREASING CLOUDINESS. SHOWERS BEGINNING EARLY THIS EVENING.
SHOWERS OR A FEW THUNDERSTORMS THIS EVENING AND AFTER MIDNIGHT.
AMOUNT 10 TO 20 MM. WIND SOUTHEAST 20 KM/H GUSTING TO 40 BECOMING
LIGHT THIS EVENING. LOW 9.
SATURDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS.
RISK OF A THUNDERSTORM IN THE AFTERNOON. WIND BECOMING NORTHWEST
20 KM/H GUSTING TO 40 IN THE AFTERNOON. HIGH 20. UV INDEX 7 OR HIGH.
SATURDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A
THUNDERSTORM IN THE EVENING. WIND NORTHWEST 20 KM/H GUSTING TO 40
BECOMING LIGHT IN THE EVENING. LOW 10.
HANNA - CORONATION - OYEN.
TONIGHT..BECOMING CLOUDY THIS EVENING WITH SHOWERS. RISK OF A
THUNDERSTORM LATE THIS EVENING AND OVERNIGHT. AMOUNT 5 TO 10 MM.
WIND SOUTHEAST 20 KM/H GUSTING TO 40. LOW 13.
SATURDAY..SHOWERS ENDING NEAR NOON THEN A MIX OF SUN AND CLOUD WITH
60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM IN THE
AFTERNOON. AMOUNT 5 TO 10 MM. WIND SOUTHEAST 20 KM/H BECOMING LIGHT
NEAR NOON. HIGH 20. UV INDEX 7 OR HIGH.
SATURDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A
THUNDERSTORM IN THE EVENING. LOW 11.
MEDICINE HAT - BOW ISLAND - SUFFIELD.
TONIGHT..MAINLY CLOUDY. SHOWERS BEGINNING LATE THIS EVENING. RISK OF
A THUNDERSTORM LATE THIS EVENING AND OVERNIGHT. AMOUNT 5 TO 10 MM.
WIND SOUTHEAST 20 KM/H. LOW 14.
SATURDAY..SHOWERS ENDING IN THE MORNING THEN A MIX OF SUN AND CLOUD
WITH 30 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM IN THE
AFTERNOON. WIND SOUTHEAST 20 KM/H BECOMING LIGHT IN THE MORNING.
HIGH 24. HUMIDEX 27. UV INDEX 7 OR HIGH.
SATURDAY NIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS AND
RISK OF A THUNDERSTORM. LOW 13.
CYPRESS HILLS PROVINCIAL PARK - FOREMOST.
TONIGHT..PARTLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS LATE THIS
EVENING AND OVERNIGHT WITH RISK OF A THUNDERSTORM. FOG PATCHES
DEVELOPING OVERNIGHT. WIND SOUTH 20 KM/H BECOMING EAST 20 GUSTING TO
40 EARLY THIS EVENING. LOW 13.
SATURDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON WITH RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN
THE MORNING. WIND EAST 20 KM/H BECOMING LIGHT IN THE MORNING. WIND
BECOMING WEST 20 GUSTING TO 40 IN THE AFTERNOON. HIGH 23. UV INDEX 8
OR VERY HIGH.
SATURDAY NIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS AND
RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40 BECOMING
LIGHT IN THE EVENING. LOW 11.
LETHBRIDGE - TABER - MILK RIVER.
TONIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF
A SEVERE THUNDERSTORM. FOG PATCHES DEVELOPING OVERNIGHT. WIND
SOUTHEAST 20 KM/H BECOMING WEST 20 GUSTING TO 40 OVERNIGHT. LOW 12.
SATURDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS LATE
IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. FOG PATCHES
DISSIPATING IN THE MORNING. WIND WEST 20 KM/H GUSTING TO 40 BECOMING
LIGHT IN THE MORNING. WIND BECOMING WEST 20 GUSTING TO 40 IN THE
AFTERNOON. HIGH 21. UV INDEX 8 OR VERY HIGH.
SATURDAY NIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS AND
RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40 BECOMING
LIGHT IN THE EVENING. LOW 11.
CARDSTON - FORT MACLEOD - MAGRATH.
TONIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF
A SEVERE THUNDERSTORM. FOG PATCHES DEVELOPING OVERNIGHT. WIND
SOUTHEAST 20 KM/H BECOMING LIGHT THIS EVENING. LOW 14.
SATURDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON WITH RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN
THE MORNING. WIND BECOMING WEST 20 KM/H GUSTING TO 40 IN THE
AFTERNOON. HIGH 23. UV INDEX 8 OR VERY HIGH.
SATURDAY NIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS AND
RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40 BECOMING
LIGHT IN THE EVENING. LOW 11.
CROWSNEST PASS - PINCHER CREEK - WATERTON LAKES NAT. PARK.
TONIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A
SEVERE THUNDERSTORM THIS EVENING. FOG PATCHES DEVELOPING OVERNIGHT.
WIND SOUTHEAST 20 KM/H BECOMING LIGHT THIS EVENING. LOW 13.
SATURDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON WITH RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN
THE MORNING. WIND BECOMING WEST 30 KM/H GUSTING TO 50 IN THE
AFTERNOON. HIGH 20. UV INDEX 7 OR HIGH.
SATURDAY NIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS AND
RISK OF A THUNDERSTORM. WIND WEST 40 KM/H GUSTING TO 60 BECOMING
LIGHT IN THE EVENING. LOW 9.
END
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