040
FPCN15 CWWG 072142
FORECASTS FOR SOUTHERN ALBERTA AND THE MOUNTAIN PARKS ISSUED BY
ENVIRONMENT CANADA AT 4:00 P.M. MDT MONDAY 7 SEPTEMBER 2026 FOR
TONIGHT TUESDAY AND TUESDAY NIGHT.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. MDT TUESDAY.
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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..PERIODS OF RAIN ENDING OVERNIGHT THEN CLOUDY WITH 30 PERCENT
CHANCE OF SHOWERS. LOCAL AMOUNT 5 TO 10 MM. WIND NORTH 20 KM/H
GUSTING TO 40 BECOMING LIGHT LATE THIS EVENING. LOW 10.
TUESDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS.
WIND BECOMING NORTH 20 KM/H LATE IN THE MORNING. HIGH 21. UV INDEX 5
OR MODERATE.
TUESDAY NIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS IN THE
EVENING THEN CLEAR. WIND NORTH 20 KM/H BECOMING LIGHT IN THE
EVENING. LOW 11.
OKOTOKS - HIGH RIVER - CLARESHOLM.
TONIGHT..RAIN ENDING OVERNIGHT THEN CLOUDY WITH 30 PERCENT CHANCE OF
SHOWERS. AMOUNT 10 TO 20 MM. WIND NORTH 30 KM/H GUSTING TO 50
BECOMING LIGHT LATE THIS EVENING. LOW 8.
TUESDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS.
WIND BECOMING NORTH 20 KM/H LATE IN THE MORNING. HIGH 20. UV INDEX 5
OR MODERATE.
TUESDAY NIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS IN THE
EVENING THEN CLEAR. WIND NORTH 20 KM/H BECOMING LIGHT IN THE
EVENING. LOW 9.
AIRDRIE - COCHRANE - OLDS - SUNDRE.
TONIGHT..PERIODS OF RAIN ENDING AFTER MIDNIGHT THEN PARTLY CLOUDY
WITH 30 PERCENT CHANCE OF SHOWERS. WIND NORTHWEST 20 KM/H GUSTING TO
40 BECOMING LIGHT LATE THIS EVENING. LOW 7.
TUESDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS.
WIND BECOMING NORTH 20 KM/H LATE IN THE MORNING. HIGH 21. UV INDEX 4
OR MODERATE.
TUESDAY NIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS IN THE
EVENING THEN CLEAR. WIND NORTH 20 KM/H BECOMING LIGHT IN THE
EVENING. LOW PLUS 4 WITH RISK OF FROST.
DRUMHELLER - THREE HILLS.
TONIGHT..RAIN ENDING BEFORE MORNING THEN CLOUDY WITH 30 PERCENT
CHANCE OF SHOWERS. AMOUNT 10 TO 20 MM. WIND NORTHWEST 20 KM/H
GUSTING TO 40. LOW 10.
TUESDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS.
WIND NORTHWEST 20 KM/H GUSTING TO 40. HIGH 21. UV INDEX 5 OR
MODERATE.
TUESDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE
EVENING. WIND NORTHWEST 20 KM/H BECOMING LIGHT LATE IN THE EVENING.
LOW 7.
BROOKS - STRATHMORE - VULCAN.
TONIGHT..RAIN. AMOUNT 10 TO 20 MM. WIND NORTH 20 KM/H GUSTING TO 40.
LOW 10.
TUESDAY..RAIN ENDING IN THE MORNING THEN A MIX OF SUN AND CLOUD WITH
30 PERCENT CHANCE OF SHOWERS. WIND NORTHWEST 20 KM/H GUSTING TO 40.
HIGH 22. UV INDEX 5 OR MODERATE.
TUESDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE
EVENING. WIND NORTHWEST 20 KM/H BECOMING LIGHT LATE IN THE EVENING.
LOW 8.
KANANASKIS - CANMORE.
TONIGHT..PERIODS OF RAIN ENDING LATE THIS EVENING THEN PARTLY CLOUDY.
LOW 6.
TUESDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON. HIGH 20. UV INDEX 5 OR MODERATE.
TUESDAY NIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY
IN THE EVENING THEN CLEAR. LOW 8.
BANFF NATIONAL PARK
HIGHWAY 93 - LAKE LOUISE TO SASKATCHEWAN RIVER CROSSING.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING.
LOW PLUS 4.
TUESDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON. HIGH 20. UV INDEX 4 OR MODERATE.
TUESDAY NIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY
IN THE EVENING THEN CLEAR. LOW 6.
HIGHWAY 93 - JASPER TO SASKATCHEWAN RIVER CROSSING
JASPER NATIONAL PARK.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING.
LOW 6.
TUESDAY..SUNNY IN THE MORNING AND EARLY IN THE AFTERNOON THEN A MIX
OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON.
HIGH 23. UV INDEX 4 OR MODERATE.
TUESDAY NIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY
IN THE EVENING THEN CLEAR. LOW 8.
NORDEGG - FORESTRY TRUNK ROAD HIGHWAY 734.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS THIS
EVENING. CLEARING NEAR MIDNIGHT. LOW PLUS 4.
TUESDAY..SUNNY IN THE MORNING AND EARLY IN THE AFTERNOON THEN A MIX
OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON.
HIGH 20. UV INDEX 4 OR MODERATE.
TUESDAY NIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY
IN THE EVENING THEN CLEAR. LOW 7.
ROCKY MOUNTAIN HOUSE - CAROLINE.
TONIGHT..PARTLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS THIS EVENING.
CLEARING BEFORE MORNING. LOW 6.
TUESDAY..SUNNY IN THE MORNING AND EARLY IN THE AFTERNOON THEN A MIX
OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON.
WIND BECOMING NORTHWEST 20 KM/H LATE IN THE MORNING. HIGH 21. UV
INDEX 4 OR MODERATE.
TUESDAY NIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS IN THE
EVENING THEN CLEAR. WIND NORTHWEST 20 KM/H BECOMING LIGHT IN THE
EVENING. LOW PLUS 5.
RED DEER - PONOKA - INNISFAIL - STETTLER.
TONIGHT..PERIODS OF RAIN ENDING OVERNIGHT THEN CLOUDY WITH 30 PERCENT
CHANCE OF SHOWERS. AMOUNT 20 MM IN AREAS EAST OF RED DEER. WIND
NORTH 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 8.
TUESDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS.
WIND BECOMING NORTHWEST 20 KM/H LATE IN THE MORNING. HIGH 21. UV
INDEX 4 OR MODERATE.
TUESDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE
EVENING. WIND NORTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING.
LOW 7.
HANNA - CORONATION - OYEN.
TONIGHT..RAIN AT TIMES HEAVY. AMOUNT 15 TO 25 MM. WIND NORTH 20 KM/H
GUSTING TO 40. LOW 9.
TUESDAY..RAIN AT TIMES HEAVY ENDING IN THE MORNING THEN A MIX OF SUN
AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS. WIND NORTHWEST 20 KM/H
GUSTING TO 40. HIGH 19. UV INDEX 4 OR MODERATE.
TUESDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE
EVENING. WIND NORTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING.
LOW 9.
MEDICINE HAT - BOW ISLAND - SUFFIELD.
TONIGHT..RAIN. RISK OF A THUNDERSTORM EARLY THIS EVENING. AMOUNT 15
TO 25 MM. WIND WEST 20 KM/H GUSTING TO 40. LOW 11.
TUESDAY..RAIN ENDING IN THE MORNING THEN A MIX OF SUN AND CLOUD WITH
30 PERCENT CHANCE OF SHOWERS. AMOUNT 5 TO 10 MM. WIND WEST 20 KM/H
GUSTING TO 40. HIGH 19. UV INDEX 5 OR MODERATE.
TUESDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE
EVENING AND AFTER MIDNIGHT. WIND WEST 20 KM/H BECOMING LIGHT IN THE
EVENING. LOW 8.
CYPRESS HILLS PROVINCIAL PARK - FOREMOST.
TONIGHT..RAIN AT TIMES HEAVY. RISK OF A THUNDERSTORM EARLY THIS
EVENING. AMOUNT 15 TO 25 MM. WIND WEST 30 KM/H GUSTING TO 50. LOW 9.
TUESDAY..RAIN AT TIMES HEAVY ENDING IN THE AFTERNOON THEN CLOUDY WITH
30 PERCENT CHANCE OF SHOWERS. AMOUNT 5 TO 10 MM. WIND WEST 20 KM/H
GUSTING TO 40. HIGH 16. UV INDEX 1 OR LOW.
TUESDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE
EVENING AND AFTER MIDNIGHT. WIND WEST 20 KM/H. LOW 7.
LETHBRIDGE - TABER - MILK RIVER.
TONIGHT..RAIN AT TIMES HEAVY. RISK OF A THUNDERSTORM EARLY THIS
EVENING. AMOUNT 15 TO 25 MM. WIND NORTHWEST 40 KM/H GUSTING TO 60
BECOMING WEST 20 OVERNIGHT. LOW 9.
TUESDAY..RAIN AT TIMES HEAVY ENDING IN THE MORNING THEN A MIX OF SUN
AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS. AMOUNT 5 MM. WIND WEST
20 KM/H. HIGH 20. UV INDEX 5 OR MODERATE.
TUESDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE
EVENING. WIND NORTHWEST 20 KM/H BECOMING SOUTHWEST 20 IN THE
EVENING. LOW 11.
CARDSTON - FORT MACLEOD - MAGRATH.
TONIGHT..RAIN AT TIMES HEAVY. AMOUNT 15 TO 25 MM. WIND WEST 20 KM/H
GUSTING TO 40 BECOMING LIGHT LATE THIS EVENING. LOW 7.
TUESDAY..RAIN AT TIMES HEAVY ENDING IN THE MORNING THEN A MIX OF SUN
AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS. WIND BECOMING WEST
20 KM/H GUSTING TO 40 NEAR NOON. HIGH 17. UV INDEX 5 OR MODERATE.
TUESDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE
EVENING. WIND WEST 20 KM/H GUSTING TO 40. LOW 11.
CROWSNEST PASS - PINCHER CREEK - WATERTON LAKES NAT. PARK.
TONIGHT..RAIN AT TIMES HEAVY ENDING BEFORE MORNING THEN CLOUDY WITH
30 PERCENT CHANCE OF SHOWERS. AMOUNT 10 TO 20 MM. WIND WEST 20 KM/H
GUSTING TO 40 BECOMING LIGHT LATE THIS EVENING. LOW 7.
TUESDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS.
WIND BECOMING WEST 20 KM/H GUSTING TO 40 NEAR NOON. HIGH 18. UV
INDEX 5 OR MODERATE.
TUESDAY NIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY
IN THE EVENING THEN CLEAR. WIND WEST 20 KM/H GUSTING TO 40. LOW 10.
END
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