917
FPCN15 CWWG 171654
FORECASTS FOR SOUTHERN ALBERTA AND THE MOUNTAIN PARKS ISSUED BY
ENVIRONMENT CANADA AT 11:00 A.M. MDT THURSDAY 17 JULY 2025 FOR TODAY
AND FRIDAY.
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..SHOWERS ENDING THIS AFTERNOON THEN A MIX OF SUN AND CLOUD WITH
60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. AMOUNT 10 TO
20 MM. WIND NORTH 20 KM/H GUSTING TO 40. HIGH 17. UV INDEX 5 OR
MODERATE.
TONIGHT..PARTLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. CLEARING OVERNIGHT. FOG PATCHES
DEVELOPING AFTER MIDNIGHT. WIND NORTH 20 KM/H BECOMING LIGHT THIS
EVENING. LOW 9.
FRIDAY..SUNNY IN THE MORNING AND EARLY IN THE AFTERNOON 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 SOUTHEAST 20 KM/H GUSTING
TO 40 LATE IN THE MORNING. HIGH 23. HUMIDEX 25. UV INDEX 7 OR HIGH.
OKOTOKS - HIGH RIVER - CLARESHOLM.
TODAY..SHOWERS WITH RISK OF A THUNDERSTORM. AMOUNT 10 TO 20 MM. WIND
NORTH 20 KM/H GUSTING TO 40. HIGH 17. UV INDEX 3 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. CLEARING OVERNIGHT. FOG PATCHES
DEVELOPING AFTER MIDNIGHT. WIND NORTH 20 KM/H BECOMING LIGHT THIS
EVENING. LOW 7.
FRIDAY..SUNNY IN THE MORNING THEN A MIX OF SUN AND CLOUD WITH
30 PERCENT CHANCE OF SHOWERS LATE IN THE AFTERNOON. RISK OF A
THUNDERSTORM LATE IN THE AFTERNOON. FOG PATCHES DISSIPATING IN THE
MORNING. WIND BECOMING SOUTHEAST 20 KM/H GUSTING TO 40 LATE IN THE
MORNING. HIGH 23. HUMIDEX 26. UV INDEX 7 OR HIGH.
AIRDRIE - COCHRANE - OLDS - SUNDRE.
TODAY..SHOWERS ENDING THIS AFTERNOON THEN A MIX OF SUN AND CLOUD WITH
60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. AMOUNT 10 TO
20 MM. WIND NORTH 20 KM/H GUSTING TO 40. HIGH 16. UV INDEX 5 OR
MODERATE.
TONIGHT..PARTLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. CLEARING OVERNIGHT. FOG PATCHES
DEVELOPING AFTER MIDNIGHT. WIND NORTH 20 KM/H BECOMING LIGHT THIS
EVENING. LOW 7.
FRIDAY..SUNNY. INCREASING CLOUDINESS IN THE AFTERNOON THEN 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 SOUTHEAST 20 KM/H GUSTING TO 40 LATE IN THE MORNING.
HIGH 21. UV INDEX 7 OR HIGH.
DRUMHELLER - THREE HILLS.
TODAY..SHOWERS WITH RISK OF A THUNDERSTORM. AMOUNT 10 TO 20 MM. WIND
EAST 20 KM/H BECOMING NORTH 20 THIS AFTERNOON. HIGH 18. UV INDEX 3
OR MODERATE.
TONIGHT..PARTLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS THIS EVENING
WITH RISK OF A THUNDERSTORM. CLEARING BEFORE MORNING. FOG PATCHES
DEVELOPING AFTER MIDNIGHT. WIND NORTH 20 KM/H BECOMING LIGHT THIS
EVENING. LOW 9.
FRIDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE AFTERNOON. FOG
PATCHES DISSIPATING IN THE MORNING. WIND BECOMING SOUTHEAST 20 KM/H
GUSTING TO 40 LATE IN THE MORNING. HIGH 24. HUMIDEX 26. UV INDEX 7
OR HIGH.
BROOKS - STRATHMORE - VULCAN.
TODAY..SHOWERS WITH RISK OF A THUNDERSTORM. AMOUNT 10 TO 20 MM. WIND
EAST 20 KM/H. HIGH 19. UV INDEX 3 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS THIS EVENING
WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING AFTER MIDNIGHT.
WIND NORTHEAST 20 KM/H BECOMING LIGHT THIS EVENING. LOW 9.
FRIDAY..MAINLY SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND
BECOMING SOUTHEAST 20 KM/H GUSTING TO 40 LATE IN THE MORNING.
HIGH 26. HUMIDEX 28. UV INDEX 7 OR HIGH.
KANANASKIS - CANMORE.
TODAY..SHOWERS ENDING THIS AFTERNOON THEN A MIX OF SUN AND CLOUD WITH
60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. AMOUNT 15 TO
25 MM. HIGH 16. UV INDEX 5 OR MODERATE.
TONIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS THIS EVENING
AND RISK OF A THUNDERSTORM. CLEARING NEAR MIDNIGHT. FOG PATCHES
DEVELOPING AFTER MIDNIGHT. LOW 7.
FRIDAY..SUNNY EARLY IN THE MORNING THEN A MIX OF SUN AND CLOUD WITH
60 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. RISK OF A
THUNDERSTORM IN THE AFTERNOON. FOG PATCHES DISSIPATING IN THE
MORNING. HIGH 21. UV INDEX 7 OR HIGH.
BANFF NATIONAL PARK
HIGHWAY 93 - LAKE LOUISE TO SASKATCHEWAN RIVER CROSSING.
TODAY..SHOWERS ENDING NEAR NOON THEN MAINLY CLOUDY WITH 60 PERCENT
CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. HIGH 17. UV INDEX 5 OR
MODERATE.
TONIGHT..PARTLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS THIS EVENING
WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING AFTER MIDNIGHT.
LOW 8.
FRIDAY..A MIX OF SUN AND CLOUD. 60 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON WITH RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN
THE MORNING. HIGH 21. UV INDEX 7 OR HIGH.
HIGHWAY 93 - JASPER TO SASKATCHEWAN RIVER CROSSING
JASPER NATIONAL PARK.
TODAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS AND RISK OF A
THUNDERSTORM. HIGH 23. UV INDEX 6 OR HIGH.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING
WITH RISK OF A THUNDERSTORM. LOW 9.
FRIDAY..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON
WITH RISK OF A THUNDERSTORM. HIGH 22. UV INDEX 5 OR MODERATE.
NORDEGG - FORESTRY TRUNK ROAD HIGHWAY 734.
TODAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS AND
RISK OF A THUNDERSTORM. HIGH 16. UV INDEX 6 OR HIGH.
TONIGHT..PARTLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING AFTER
MIDNIGHT. LOW 6.
FRIDAY..A MIX OF SUN AND CLOUD. 60 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON WITH RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN
THE MORNING. WIND BECOMING SOUTH 20 KM/H LATE IN THE MORNING.
HIGH 22. UV INDEX 7 OR HIGH.
ROCKY MOUNTAIN HOUSE - CAROLINE.
TODAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A
THUNDERSTORM. HIGH 18. UV INDEX 5 OR MODERATE.
TONIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING AND RISK OF A THUNDERSTORM. CLEARING THIS EVENING. FOG
PATCHES DEVELOPING AFTER MIDNIGHT. LOW 7.
FRIDAY..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. WIND BECOMING SOUTHEAST 20 KM/H GUSTING TO 40 LATE
IN THE MORNING. HIGH 21. UV INDEX 7 OR HIGH.
RED DEER - PONOKA - INNISFAIL - STETTLER.
TODAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A
THUNDERSTORM. WIDESPREAD SMOKE EARLY THIS AFTERNOON. HIGH 19. UV
INDEX 5 OR MODERATE.
TONIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS THIS EVENING
AND RISK OF A THUNDERSTORM. CLEARING NEAR MIDNIGHT. FOG PATCHES
DEVELOPING AFTER MIDNIGHT. LOW 7.
FRIDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE AFTERNOON. FOG
PATCHES DISSIPATING IN THE MORNING. WIND BECOMING SOUTHEAST 20 KM/H
GUSTING TO 40 LATE IN THE MORNING. HIGH 21. UV INDEX 7 OR HIGH.
HANNA - CORONATION - OYEN.
TODAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A
THUNDERSTORM. WIDESPREAD SMOKE NEAR NOON. WIND EAST 20 KM/H GUSTING
TO 40. HIGH 23. UV INDEX 5 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS THIS EVENING
WITH RISK OF A THUNDERSTORM. CLEARING BEFORE MORNING. LOW 7.
FRIDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE AFTERNOON. WIND
BECOMING SOUTHEAST 20 KM/H LATE IN THE MORNING. HIGH 24. UV INDEX 7
OR HIGH.
MEDICINE HAT - BOW ISLAND - SUFFIELD.
TODAY..SHOWERS WITH RISK OF A THUNDERSTORM. WIND SOUTHEAST 20 KM/H
GUSTING TO 40. HIGH 21. UV INDEX 3 OR MODERATE.
TONIGHT..SHOWERS ENDING LATE THIS EVENING THEN CLEARING. RISK OF A
THUNDERSTORM THIS EVENING. LOW 12.
FRIDAY..MAINLY SUNNY. HIGH 27. HUMIDEX 29. UV INDEX 8 OR VERY HIGH.
CYPRESS HILLS PROVINCIAL PARK - FOREMOST.
TODAY..SHOWERS WITH RISK OF A THUNDERSTORM. WIND SOUTHEAST 20 KM/H
GUSTING TO 40 BECOMING NORTHWEST 20 GUSTING TO 40 LATE THIS
AFTERNOON. HIGH 22. UV INDEX 3 OR MODERATE.
TONIGHT..A FEW SHOWERS ENDING LATE THIS EVENING THEN CLEARING. RISK
OF A THUNDERSTORM THIS EVENING. WIND NORTHWEST 20 KM/H GUSTING TO 40
BECOMING LIGHT NEAR MIDNIGHT. LOW 8.
FRIDAY..SUNNY. HIGH 25. HUMIDEX 27. UV INDEX 8 OR VERY HIGH.
LETHBRIDGE - TABER - MILK RIVER.
TODAY..SHOWERS WITH RISK OF A THUNDERSTORM. LOCAL AMOUNT 5 MM. WIND
BECOMING NORTHWEST 20 KM/H GUSTING TO 40 THIS AFTERNOON. HIGH 20. UV
INDEX 3 OR MODERATE.
TONIGHT..A FEW SHOWERS ENDING LATE THIS EVENING THEN CLEARING. RISK
OF A THUNDERSTORM THIS EVENING. WIND NORTHWEST 20 KM/H GUSTING TO 40
BECOMING LIGHT THIS EVENING. LOW 9.
FRIDAY..SUNNY. WIND BECOMING SOUTHEAST 20 KM/H GUSTING TO 40 IN THE
AFTERNOON. HIGH 27. HUMIDEX 30. UV INDEX 8 OR VERY HIGH.
CARDSTON - FORT MACLEOD - MAGRATH.
TODAY..SHOWERS WITH RISK OF A THUNDERSTORM. LOCAL AMOUNT 5 MM. WIND
BECOMING NORTH 20 KM/H GUSTING TO 40 THIS AFTERNOON. HIGH 19. UV
INDEX 3 OR MODERATE.
TONIGHT..A FEW SHOWERS ENDING THIS EVENING THEN CLEARING. RISK OF A
THUNDERSTORM EARLY THIS EVENING. WIND NORTH 20 KM/H GUSTING TO 40
BECOMING LIGHT THIS EVENING. LOW 9.
FRIDAY..SUNNY IN THE MORNING AND EARLY IN THE AFTERNOON THEN A MIX OF
SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS LATE IN THE
AFTERNOON. RISK OF A THUNDERSTORM LATE IN THE AFTERNOON. WIND
BECOMING SOUTH 20 KM/H GUSTING TO 40 EARLY IN THE AFTERNOON.
HIGH 27. HUMIDEX 28. UV INDEX 8 OR VERY HIGH.
CROWSNEST PASS - PINCHER CREEK - WATERTON LAKES NAT. PARK.
TODAY..SHOWERS WITH RISK OF A THUNDERSTORM. AMOUNT 5 TO 10 MM. WIND
BECOMING NORTH 20 KM/H GUSTING TO 40 THIS AFTERNOON. HIGH 18. UV
INDEX 3 OR MODERATE.
TONIGHT..A FEW SHOWERS ENDING THIS EVENING THEN CLEARING. RISK OF A
THUNDERSTORM EARLY THIS EVENING. WIND NORTH 20 KM/H GUSTING TO 40
BECOMING LIGHT THIS EVENING. LOW 6.
FRIDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON WITH RISK OF A THUNDERSTORM. WIND BECOMING SOUTHEAST
20 KM/H GUSTING TO 40 EARLY IN THE AFTERNOON. HIGH 25. HUMIDEX 28.
UV INDEX 8 OR VERY HIGH.
END
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