323
FPCN15 CWWG 181654
FORECASTS FOR SOUTHERN ALBERTA AND THE MOUNTAIN PARKS ISSUED BY
ENVIRONMENT CANADA AT 11:00 A.M. MDT FRIDAY 18 JULY 2025 FOR TODAY
AND SATURDAY.
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..INCREASING CLOUDINESS. A FEW SHOWERS BEGINNING LATE THIS
AFTERNOON. RISK OF A SEVERE THUNDERSTORM LATE THIS AFTERNOON. WIND
SOUTHEAST 20 KM/H. HIGH 21. UV INDEX 7 OR HIGH.
TONIGHT..A FEW SHOWERS ENDING BEFORE MORNING THEN PARTLY CLOUDY. RISK
OF A SEVERE THUNDERSTORM. AMOUNT 5 TO 10 MM. FOG PATCHES DEVELOPING
AFTER MIDNIGHT. WIND SOUTHEAST 20 KM/H BECOMING LIGHT THIS EVENING.
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. HIGH 21. UV INDEX 7 OR HIGH.
OKOTOKS - HIGH RIVER - CLARESHOLM.
TODAY..INCREASING CLOUDINESS. A FEW SHOWERS BEGINNING THIS AFTERNOON.
RISK OF A SEVERE THUNDERSTORM THIS AFTERNOON. WIND SOUTHEAST
20 KM/H. HIGH 23. HUMIDEX 28. UV INDEX 7 OR HIGH.
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 AFTER MIDNIGHT. WIND SOUTHEAST
20 KM/H BECOMING LIGHT THIS EVENING. LOW 11.
SATURDAY..A MIX OF SUN AND CLOUD. BECOMING CLOUDY IN THE AFTERNOON
WITH 30 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.
AIRDRIE - COCHRANE - OLDS - SUNDRE.
TODAY..BECOMING CLOUDY THIS AFTERNOON WITH A FEW SHOWERS OR
THUNDERSTORMS. RISK OF A SEVERE THUNDERSTORM THIS AFTERNOON. WIND
SOUTHEAST 20 KM/H GUSTING TO 40. HIGH 21. UV INDEX 7 OR HIGH.
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 AFTER MIDNIGHT.
WIND SOUTHEAST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING.
LOW 6.
SATURDAY..SUNNY IN THE MORNING THEN A MIX OF SUN AND CLOUD 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 21. UV
INDEX 7 OR HIGH.
DRUMHELLER - THREE HILLS.
TODAY..MAINLY SUNNY. WIND SOUTHEAST 20 KM/H. HIGH 26. HUMIDEX 28. UV
INDEX 7 OR HIGH.
TONIGHT..BECOMING CLOUDY THIS EVENING WITH SHOWERS OR THUNDERSTORMS.
RISK OF A SEVERE THUNDERSTORM. AMOUNT 10 TO 20 MM. FOG PATCHES
DEVELOPING AFTER MIDNIGHT. WIND SOUTHEAST 20 KM/H BECOMING LIGHT
THIS EVENING. LOW 14.
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 25. HUMIDEX 27. UV INDEX 7 OR HIGH.
BROOKS - STRATHMORE - VULCAN.
TODAY..A MIX OF SUN AND CLOUD. WIND SOUTHEAST 20 KM/H. HIGH 25.
HUMIDEX 27. UV INDEX 7 OR HIGH.
TONIGHT..BECOMING CLOUDY THIS EVENING WITH SHOWERS. RISK OF A SEVERE
THUNDERSTORM. AMOUNT 5 TO 10 MM. FOG PATCHES DEVELOPING AFTER
MIDNIGHT. 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 25. HUMIDEX 30. UV INDEX 7 OR HIGH.
KANANASKIS - CANMORE.
TODAY..BECOMING CLOUDY NEAR NOON WITH A FEW SHOWERS. RISK OF A SEVERE
THUNDERSTORM THIS AFTERNOON. HIGH 18. UV INDEX 7 OR HIGH.
TONIGHT..A FEW SHOWERS ENDING NEAR MIDNIGHT THEN PARTLY CLOUDY WITH
30 PERCENT CHANCE OF SHOWERS. RISK OF A SEVERE THUNDERSTORM THIS
EVENING. AMOUNT 5 TO 10 MM. FOG PATCHES DEVELOPING AFTER MIDNIGHT.
LOW 9.
SATURDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS IN
THE MORNING AND EARLY IN THE AFTERNOON. SHOWERS BEGINNING IN THE
AFTERNOON. RISK OF A THUNDERSTORM IN THE AFTERNOON. FOG PATCHES
DISSIPATING IN THE MORNING. HIGH 22. UV INDEX 7 OR HIGH.
BANFF NATIONAL PARK
HIGHWAY 93 - LAKE LOUISE TO SASKATCHEWAN RIVER CROSSING.
TODAY..INCREASING CLOUDINESS. A FEW SHOWERS BEGINNING THIS AFTERNOON.
RISK OF A THUNDERSTORM THIS AFTERNOON. HIGH 19. UV INDEX 7 OR HIGH.
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 7.
SATURDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS IN THE
MORNING. A FEW SHOWERS BEGINNING NEAR NOON. RISK OF A THUNDERSTORM
IN THE AFTERNOON. HIGH 19. UV INDEX 6 OR HIGH.
HIGHWAY 93 - JASPER TO SASKATCHEWAN RIVER CROSSING
JASPER NATIONAL PARK.
TODAY..CLOUDY. A FEW SHOWERS BEGINNING NEAR NOON. RISK OF A
THUNDERSTORM. HIGH 20. UV INDEX 5 OR MODERATE.
TONIGHT..SHOWERS. RISK OF A THUNDERSTORM THIS EVENING. AMOUNT 5 TO
10 MM. LOW 10.
SATURDAY..SHOWERS. AMOUNT 10 MM. HIGH 17. UV INDEX 3 OR MODERATE.
NORDEGG - FORESTRY TRUNK ROAD HIGHWAY 734.
TODAY..BECOMING CLOUDY NEAR NOON WITH SHOWERS. RISK OF A SEVERE
THUNDERSTORM THIS AFTERNOON. WIND SOUTHEAST 20 KM/H GUSTING TO 40.
HIGH 20. UV INDEX 7 OR HIGH.
TONIGHT..SHOWERS ENDING NEAR MIDNIGHT THEN PARTLY CLOUDY WITH
30 PERCENT CHANCE OF SHOWERS. RISK OF A SEVERE THUNDERSTORM THIS
EVENING. AMOUNT 5 TO 10 MM. FOG PATCHES DEVELOPING AFTER MIDNIGHT.
WIND SOUTHEAST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING.
LOW PLUS 5.
SATURDAY..MAINLY CLOUDY. 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. HIGH 18. UV INDEX 5 OR MODERATE.
ROCKY MOUNTAIN HOUSE - CAROLINE.
TODAY..BECOMING CLOUDY THIS AFTERNOON WITH SHOWERS OR THUNDERSTORMS.
RISK OF A SEVERE THUNDERSTORM LATE THIS AFTERNOON. WIND SOUTHEAST
20 KM/H GUSTING TO 40. HIGH 21. UV INDEX 7 OR HIGH.
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 AFTER MIDNIGHT. WIND SOUTHEAST 20 KM/H
GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 11.
SATURDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS IN THE
MORNING. SHOWERS BEGINNING NEAR NOON. RISK OF A THUNDERSTORM LATE IN
THE MORNING AND 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 21. UV INDEX 6 OR HIGH.
RED DEER - PONOKA - INNISFAIL - STETTLER.
TODAY..MAINLY SUNNY. INCREASING CLOUDINESS LATE THIS AFTERNOON. WIND
SOUTHEAST 20 KM/H GUSTING TO 40. HIGH 21. UV INDEX 7 OR HIGH.
TONIGHT..SHOWERS OR THUNDERSTORMS. AMOUNT 10 TO 20 MM. FOG PATCHES
DEVELOPING AFTER MIDNIGHT. WIND SOUTHEAST 20 KM/H GUSTING TO 40
BECOMING LIGHT THIS EVENING. LOW 10.
SATURDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS.
RISK OF A THUNDERSTORM IN THE AFTERNOON. FOG PATCHES DISSIPATING IN
THE MORNING. WIND BECOMING NORTHWEST 20 KM/H GUSTING TO 40 IN THE
AFTERNOON. HIGH 21. UV INDEX 7 OR HIGH.
HANNA - CORONATION - OYEN.
TODAY..MAINLY SUNNY. WIND SOUTHEAST 20 KM/H GUSTING TO 40. HIGH 25.
UV INDEX 7 OR HIGH.
TONIGHT..INCREASING CLOUDINESS. SHOWERS BEGINNING NEAR MIDNIGHT. RISK
OF A THUNDERSTORM OVERNIGHT. AMOUNT 5 TO 10 MM. FOG PATCHES
DEVELOPING AFTER MIDNIGHT. WIND SOUTHEAST 20 KM/H GUSTING TO 40.
LOW 12.
SATURDAY..SHOWERS ENDING NEAR NOON THEN A MIX OF SUN AND CLOUD WITH
60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM IN THE MORNING
AND AFTERNOON. AMOUNT 5 TO 10 MM. FOG PATCHES DISSIPATING IN THE
MORNING. WIND SOUTHEAST 20 KM/H BECOMING LIGHT NEAR NOON. HIGH 22.
HUMIDEX 25. UV INDEX 7 OR HIGH.
MEDICINE HAT - BOW ISLAND - SUFFIELD.
TODAY..MAINLY SUNNY. WIND SOUTH 20 KM/H. HIGH 26. HUMIDEX 27. UV
INDEX 8 OR VERY HIGH.
TONIGHT..INCREASING CLOUDINESS. SHOWERS BEGINNING NEAR MIDNIGHT. RISK
OF A THUNDERSTORM OVERNIGHT. AMOUNT 5 TO 10 MM. FOG PATCHES
DEVELOPING AFTER MIDNIGHT. 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
MORNING AND AFTERNOON. FOG PATCHES DISSIPATING IN THE MORNING. WIND
SOUTHEAST 20 KM/H BECOMING LIGHT IN THE MORNING. HIGH 27. HUMIDEX
29. UV INDEX 7 OR HIGH.
CYPRESS HILLS PROVINCIAL PARK - FOREMOST.
TODAY..MAINLY SUNNY. WIND SOUTH 20 KM/H. HIGH 26. HUMIDEX 27. UV
INDEX 8 OR VERY HIGH.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH
RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING AFTER MIDNIGHT. WIND
EAST 20 KM/H GUSTING TO 40. LOW 14.
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 EAST 20 KM/H BECOMING LIGHT IN THE
MORNING. WIND BECOMING WEST 20 GUSTING TO 40 IN THE AFTERNOON.
HIGH 28. HUMIDEX 29. UV INDEX 8 OR VERY HIGH.
LETHBRIDGE - TABER - MILK RIVER.
TODAY..SUNNY. WIND BECOMING SOUTHEAST 20 KM/H THIS AFTERNOON.
HIGH 26. HUMIDEX 29. UV INDEX 8 OR VERY HIGH.
TONIGHT..PARTLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS WITH RISK OF A
SEVERE THUNDERSTORM. FOG PATCHES DEVELOPING AFTER MIDNIGHT. WIND
SOUTHEAST 20 KM/H BECOMING WEST 20 GUSTING TO 40 OVERNIGHT. LOW 15.
SATURDAY..MAINLY CLOUDY. CLEARING NEAR NOON. 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 26. HUMIDEX 28. UV INDEX 8 OR VERY HIGH.
CARDSTON - FORT MACLEOD - MAGRATH.
TODAY..SUNNY NEAR NOON THEN A MIX OF SUN AND CLOUD WITH 60 PERCENT
CHANCE OF SHOWERS LATE THIS AFTERNOON. RISK OF A SEVERE THUNDERSTORM
LATE THIS AFTERNOON. WIND BECOMING SOUTHEAST 20 KM/H EARLY THIS
AFTERNOON. HIGH 26. HUMIDEX 28. UV INDEX 8 OR VERY HIGH.
TONIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF
A SEVERE THUNDERSTORM. FOG PATCHES DEVELOPING AFTER MIDNIGHT. WIND
SOUTHEAST 20 KM/H BECOMING LIGHT THIS EVENING. LOW 14.
SATURDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS LATE 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 7 OR HIGH.
CROWSNEST PASS - PINCHER CREEK - WATERTON LAKES NAT. PARK.
TODAY..A MIX OF SUN AND CLOUD. 60 PERCENT CHANCE OF SHOWERS LATE THIS
AFTERNOON WITH RISK OF A SEVERE THUNDERSTORM. WIND BECOMING
SOUTHEAST 20 KM/H EARLY THIS AFTERNOON. HIGH 23. HUMIDEX 26. UV
INDEX 8 OR VERY HIGH.
TONIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A
SEVERE THUNDERSTORM THIS EVENING. WIND SOUTHEAST 20 KM/H BECOMING
LIGHT THIS EVENING. LOW 11.
SATURDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS LATE IN THE
AFTERNOON WITH RISK OF A THUNDERSTORM. WIND BECOMING WEST 30 KM/H
GUSTING TO 50 IN THE AFTERNOON. HIGH 24. UV INDEX 7 OR HIGH.
END
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