039
FPCN53 CWWG 212125
EXTENDED FORECASTS FROM SUNDAY 23 AUGUST TO THURSDAY 27 AUGUST FOR
SOUTHERN ALBERTA AND THE MOUNTAIN PARKS ISSUED BY ENVIRONMENT CANADA
AT 3:30 P.M. MDT FRIDAY 21 AUGUST 2026.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 4:30 A.M. MDT SATURDAY.
CITY OF CALGARY.
SUNDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 27.
SUNDAY NIGHT..CLOUDY PERIODS WITH 60 PERCENT CHANCE OF SHOWERS.
LOW 14.
MONDAY..SUNNY. HIGH 23.
MONDAY NIGHT..CLEAR. LOW 11.
TUESDAY..SUNNY. HIGH 24.
TUESDAY NIGHT..CLEAR. LOW 10.
WEDNESDAY..SUNNY. HIGH 28.
WEDNESDAY NIGHT..CLEAR. LOW 10.
THURSDAY..SUNNY. HIGH 24.
NORMALS FOR THE PERIOD..LOW 8. HIGH 22.
AIRDRIE - COCHRANE - OLDS - SUNDRE.
SUNDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS.
HIGH 22.
SUNDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW 10.
MONDAY..SUNNY. HIGH 22.
MONDAY NIGHT..CLEAR. LOW 6.
TUESDAY..SUNNY. HIGH 24.
TUESDAY NIGHT..CLEAR. LOW 8.
WEDNESDAY..SUNNY. HIGH 26.
WEDNESDAY NIGHT..CLOUDY PERIODS. LOW 8.
THURSDAY..A MIX OF SUN AND CLOUD. HIGH 21.
NORMALS FOR THE PERIOD..LOW 7. HIGH 21.
OKOTOKS - HIGH RIVER - CLARESHOLM.
SUNDAY..A MIX OF SUN AND CLOUD WITH 40 PERCENT CHANCE OF SHOWERS.
HIGH 25.
SUNDAY NIGHT..CLEAR. LOW 11.
MONDAY..SUNNY. HIGH 24.
MONDAY NIGHT..CLEAR. LOW 9.
TUESDAY..SUNNY. HIGH 25.
TUESDAY NIGHT..CLEAR. LOW 10.
WEDNESDAY..SUNNY. HIGH 28.
WEDNESDAY NIGHT..CLEAR. LOW 10.
THURSDAY..SUNNY. HIGH 25.
NORMALS FOR THE PERIOD..LOW 7. HIGH 21.
DRUMHELLER - THREE HILLS.
SUNDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS.
HIGH 28.
SUNDAY NIGHT..CLOUDY PERIODS WITH 60 PERCENT CHANCE OF SHOWERS.
LOW 14.
MONDAY..SUNNY. HIGH 25.
MONDAY NIGHT..CLEAR. LOW 8.
TUESDAY..SUNNY. HIGH 27.
TUESDAY NIGHT..CLEAR. LOW 11.
WEDNESDAY..SUNNY. HIGH 28.
WEDNESDAY NIGHT..CLEAR. LOW 10.
THURSDAY..SUNNY. HIGH 25.
NORMALS FOR THE PERIOD..LOW 9. HIGH 23.
BROOKS - STRATHMORE - VULCAN.
SUNDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 30.
SUNDAY NIGHT..CLEAR. LOW 13.
MONDAY..SUNNY. HIGH 25.
MONDAY NIGHT..CLEAR. LOW 9.
TUESDAY..SUNNY. HIGH 26.
TUESDAY NIGHT..CLEAR. LOW 12.
WEDNESDAY..SUNNY. HIGH 30.
WEDNESDAY NIGHT..CLEAR. LOW 11.
THURSDAY..SUNNY. HIGH 28.
NORMALS FOR THE PERIOD..LOW 9. HIGH 24.
KANANASKIS - CANMORE.
SUNDAY..A MIX OF SUN AND CLOUD WITH 40 PERCENT CHANCE OF SHOWERS.
HIGH 23.
SUNDAY NIGHT..CLOUDY PERIODS WITH 40 PERCENT CHANCE OF SHOWERS.
LOW 11.
MONDAY..SUNNY. HIGH 23.
MONDAY NIGHT..CLEAR. LOW 7.
TUESDAY..SUNNY. HIGH 24.
TUESDAY NIGHT..CLEAR. LOW 6.
WEDNESDAY..A MIX OF SUN AND CLOUD. HIGH 26.
WEDNESDAY NIGHT..CLOUDY PERIODS. LOW 7.
THURSDAY..A MIX OF SUN AND CLOUD. HIGH 21.
NORMALS FOR THE PERIOD..LOW 6. HIGH 21.
BANFF NATIONAL PARK.
SUNDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS.
HIGH 19.
SUNDAY NIGHT..CLOUDY PERIODS. LOW 9.
MONDAY..SUNNY. HIGH 24.
MONDAY NIGHT..CLEAR. LOW PLUS 5.
TUESDAY..SUNNY. HIGH 25.
TUESDAY NIGHT..CLEAR. LOW PLUS 4.
WEDNESDAY..A MIX OF SUN AND CLOUD. HIGH 25.
WEDNESDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF SHOWERS.
LOW 6.
THURSDAY..A MIX OF SUN AND CLOUD. HIGH 20.
NORMALS FOR THE PERIOD..LOW PLUS 5. HIGH 20.
HIGHWAY 93 - LAKE LOUISE TO SASKATCHEWAN RIVER CROSSING.
SUNDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS.
HIGH 19.
SUNDAY NIGHT..CLOUDY PERIODS. LOW 9.
MONDAY..SUNNY. HIGH 24.
MONDAY NIGHT..CLEAR. LOW PLUS 5.
TUESDAY..SUNNY. HIGH 25.
TUESDAY NIGHT..CLEAR. LOW PLUS 4.
WEDNESDAY..A MIX OF SUN AND CLOUD. HIGH 25.
WEDNESDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF SHOWERS.
LOW 6.
THURSDAY..A MIX OF SUN AND CLOUD. HIGH 20.
NORMALS FOR THE PERIOD..LOW PLUS 5. HIGH 20.
HIGHWAY 93 - JASPER TO SASKATCHEWAN RIVER CROSSING.
SUNDAY..SHOWERS. HIGH 18.
SUNDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW 11.
MONDAY..SUNNY. HIGH 26.
MONDAY NIGHT..CLEAR. LOW 8.
TUESDAY..SUNNY. HIGH 28.
TUESDAY NIGHT..CLOUDY PERIODS. LOW 7.
WEDNESDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS.
HIGH 21.
WEDNESDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. LOW 9.
THURSDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 17.
NORMALS FOR THE PERIOD..LOW 7. HIGH 21.
JASPER NATIONAL PARK.
SUNDAY..SHOWERS. HIGH 18.
SUNDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW 11.
MONDAY..SUNNY. HIGH 26.
MONDAY NIGHT..CLEAR. LOW 8.
TUESDAY..SUNNY. HIGH 28.
TUESDAY NIGHT..CLOUDY PERIODS. LOW 7.
WEDNESDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS.
HIGH 21.
WEDNESDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. LOW 9.
THURSDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 17.
NORMALS FOR THE PERIOD..LOW 7. HIGH 21.
NORDEGG - FORESTRY TRUNK ROAD HIGHWAY 734.
SUNDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS.
HIGH 20.
SUNDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW 11.
MONDAY..SUNNY. HIGH 21.
MONDAY NIGHT..CLEAR. LOW 6.
TUESDAY..SUNNY. HIGH 24.
TUESDAY NIGHT..CLOUDY PERIODS. LOW 7.
WEDNESDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 22.
WEDNESDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW 9.
THURSDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 18.
NORMALS FOR THE PERIOD..LOW PLUS 4. HIGH 19.
ROCKY MOUNTAIN HOUSE - CAROLINE.
SUNDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 22.
SUNDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW 11.
MONDAY..SUNNY. HIGH 23.
MONDAY NIGHT..CLEAR. LOW PLUS 5.
TUESDAY..SUNNY. HIGH 25.
TUESDAY NIGHT..CLEAR. LOW 8.
WEDNESDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS.
HIGH 24.
WEDNESDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW 9.
THURSDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 19.
NORMALS FOR THE PERIOD..LOW 7. HIGH 21.
RED DEER - PONOKA - INNISFAIL - STETTLER.
SUNDAY..SHOWERS. HIGH 23.
SUNDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW 12.
MONDAY..SUNNY. HIGH 23.
MONDAY NIGHT..CLEAR. LOW 7.
TUESDAY..SUNNY. HIGH 24.
TUESDAY NIGHT..CLEAR. LOW 9.
WEDNESDAY..A MIX OF SUN AND CLOUD. HIGH 25.
WEDNESDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF SHOWERS.
LOW 9.
THURSDAY..A MIX OF SUN AND CLOUD. HIGH 22.
NORMALS FOR THE PERIOD..LOW 8. HIGH 22.
HANNA - CORONATION - OYEN.
SUNDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS.
HIGH 28.
SUNDAY NIGHT..CLOUDY PERIODS WITH 60 PERCENT CHANCE OF SHOWERS.
LOW 13.
MONDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS.
WINDY. HIGH 23.
MONDAY NIGHT..CLEAR. LOW 8.
TUESDAY..SUNNY. HIGH 25.
TUESDAY NIGHT..CLEAR. LOW 10.
WEDNESDAY..SUNNY. HIGH 28.
WEDNESDAY NIGHT..CLEAR. LOW 11.
THURSDAY..SUNNY. HIGH 25.
NORMALS FOR THE PERIOD..LOW 8. HIGH 23.
MEDICINE HAT - BOW ISLAND - SUFFIELD.
SUNDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 30.
SUNDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF SHOWERS.
LOW 14.
MONDAY..SUNNY. HIGH 26.
MONDAY NIGHT..CLEAR. LOW 11.
TUESDAY..SUNNY. HIGH 27.
TUESDAY NIGHT..CLEAR. LOW 13.
WEDNESDAY..SUNNY. HIGH 32.
WEDNESDAY NIGHT..CLEAR. LOW 12.
THURSDAY..SUNNY. HIGH 30.
NORMALS FOR THE PERIOD..LOW 10. HIGH 25.
CYPRESS HILLS PROVINCIAL PARK - FOREMOST.
SUNDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS.
HIGH 30.
SUNDAY NIGHT..CLEAR. LOW 12.
MONDAY..SUNNY. HIGH 26.
MONDAY NIGHT..CLEAR. LOW 10.
TUESDAY..SUNNY. HIGH 27.
TUESDAY NIGHT..CLEAR. LOW 12.
WEDNESDAY..SUNNY. HIGH 31.
WEDNESDAY NIGHT..CLEAR. LOW 12.
THURSDAY..SUNNY. HIGH 29.
NORMALS FOR THE PERIOD..LOW 10. HIGH 26.
LETHBRIDGE - TABER - MILK RIVER.
SUNDAY..A MIX OF SUN AND CLOUD WITH 40 PERCENT CHANCE OF SHOWERS.
WINDY. HIGH 28.
SUNDAY NIGHT..CLEAR. LOW 11.
MONDAY..SUNNY. HIGH 25.
MONDAY NIGHT..CLEAR. LOW 8.
TUESDAY..SUNNY. HIGH 27.
TUESDAY NIGHT..CLEAR. LOW 11.
WEDNESDAY..SUNNY. HIGH 30.
WEDNESDAY NIGHT..CLEAR. LOW 11.
THURSDAY..SUNNY. HIGH 28.
NORMALS FOR THE PERIOD..LOW 9. HIGH 25.
CARDSTON - FORT MACLEOD - MAGRATH.
SUNDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS.
HIGH 25.
SUNDAY NIGHT..CLEAR. LOW 13.
MONDAY..SUNNY. HIGH 25.
MONDAY NIGHT..CLEAR. LOW 9.
TUESDAY..SUNNY. HIGH 27.
TUESDAY NIGHT..CLEAR. LOW 11.
WEDNESDAY..SUNNY. HIGH 28.
WEDNESDAY NIGHT..CLEAR. LOW 11.
THURSDAY..SUNNY. HIGH 27.
NORMALS FOR THE PERIOD..LOW 8. HIGH 24.
CROWSNEST PASS - PINCHER CREEK - WATERTON LAKES NAT. PARK.
SUNDAY..SUNNY. WINDY. HIGH 23.
SUNDAY NIGHT..CLEAR. LOW 11.
MONDAY..SUNNY. HIGH 24.
MONDAY NIGHT..CLEAR. LOW 8.
TUESDAY..SUNNY. HIGH 26.
TUESDAY NIGHT..CLEAR. LOW 11.
WEDNESDAY..SUNNY. HIGH 29.
WEDNESDAY NIGHT..CLEAR. LOW 11.
THURSDAY..SUNNY. HIGH 26.
NORMALS FOR THE PERIOD..LOW 7. HIGH 22.
END
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