075
FPCN15 CWWG 212136
FORECASTS FOR SOUTHERN ALBERTA AND THE MOUNTAIN PARKS ISSUED BY
ENVIRONMENT CANADA AT 4:00 P.M. MDT TUESDAY 21 APRIL 2026 FOR TONIGHT
WEDNESDAY AND WEDNESDAY NIGHT.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. MDT
WEDNESDAY.
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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..A FEW CLOUDS. INCREASING CLOUDINESS THIS EVENING THEN
60 PERCENT CHANCE OF SHOWERS BEFORE MORNING. LOW 9.
WEDNESDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING.
RAIN BEGINNING IN THE MORNING AND ENDING LATE IN THE AFTERNOON.
AMOUNT 5 MM. WIND BECOMING NORTH 20 KM/H GUSTING TO 40 THEN
INCREASING TO 40 GUSTING TO 60 LATE IN THE MORNING. TEMPERATURE
FALLING TO PLUS 5 IN THE AFTERNOON. UV INDEX 1 OR LOW.
WEDNESDAY NIGHT..CLEARING IN THE EVENING. WIND NORTH 40 KM/H GUSTING
TO 60. LOW MINUS 2. WIND CHILL MINUS 9 OVERNIGHT.
OKOTOKS - HIGH RIVER - CLARESHOLM.
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS THIS EVENING THEN
60 PERCENT CHANCE OF SHOWERS BEFORE MORNING. LOW 10.
WEDNESDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS IN THE MORNING. RAIN
BEGINNING LATE IN THE MORNING. AMOUNT 5 MM. WIND BECOMING NORTH
20 KM/H GUSTING TO 40 THEN INCREASING TO 40 GUSTING TO 60 LATE IN
THE MORNING. HIGH 15. UV INDEX 2 OR LOW.
WEDNESDAY NIGHT..RAIN ENDING IN THE EVENING THEN CLEARING. WIND NORTH
40 KM/H GUSTING TO 60. LOW MINUS 2. WIND CHILL MINUS 8 OVERNIGHT.
AIRDRIE - COCHRANE - OLDS - SUNDRE.
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS THIS EVENING THEN
60 PERCENT CHANCE OF SHOWERS OVERNIGHT. LOW 7.
WEDNESDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING.
RAIN BEGINNING IN THE MORNING AND ENDING LATE IN THE AFTERNOON.
AMOUNT 5 MM. WIND BECOMING NORTH 20 KM/H GUSTING TO 40 THEN
INCREASING TO 40 GUSTING TO 60 LATE IN THE MORNING. TEMPERATURE
FALLING TO PLUS 5 IN THE AFTERNOON. UV INDEX 1 OR LOW.
WEDNESDAY NIGHT..CLEARING IN THE EVENING. WIND NORTH 40 KM/H GUSTING
TO 60. LOW MINUS 3. WIND CHILL MINUS 10 OVERNIGHT.
DRUMHELLER - THREE HILLS.
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS NEAR MIDNIGHT THEN
60 PERCENT CHANCE OF SHOWERS BEFORE MORNING. LOW 9.
WEDNESDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS IN THE MORNING. RAIN
BEGINNING LATE IN THE MORNING. AMOUNT 5 TO 10 MM. WIND BECOMING
NORTH 20 KM/H GUSTING TO 40 IN THE MORNING THEN INCREASING TO 40
GUSTING TO 60 EARLY IN THE AFTERNOON. TEMPERATURE FALLING TO PLUS 5
IN THE AFTERNOON. UV INDEX 2 OR LOW.
WEDNESDAY NIGHT..RAIN ENDING IN THE EVENING THEN CLEARING. WIND NORTH
40 KM/H GUSTING TO 60. LOW MINUS 2. WIND CHILL MINUS 8 OVERNIGHT.
BROOKS - STRATHMORE - VULCAN.
TONIGHT..INCREASING CLOUDINESS. 30 PERCENT CHANCE OF SHOWERS BEFORE
MORNING. WIND BECOMING EAST 20 KM/H GUSTING TO 40 LATE THIS EVENING.
LOW 10.
WEDNESDAY..CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE MORNING. RAIN
BEGINNING NEAR NOON. AMOUNT 5 MM. WIND BECOMING NORTH 30 KM/H
GUSTING TO 50 IN THE MORNING THEN INCREASING TO 50 GUSTING TO 80
EARLY IN THE AFTERNOON. HIGH 14. UV INDEX 3 OR MODERATE.
WEDNESDAY NIGHT..RAIN ENDING LATE IN THE EVENING THEN CLEARING.
AMOUNT 5 MM. WIND NORTH 40 KM/H GUSTING TO 60. LOW ZERO.
KANANASKIS - CANMORE.
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS THIS EVENING THEN
PERIODS OF RAIN BEGINNING OVERNIGHT. LOW 6.
WEDNESDAY..PERIODS OF RAIN BECOMING MIXED WITH SNOW EARLY IN THE
AFTERNOON. RAINFALL AMOUNT 5 MM. SNOW LEVEL 2500 METRES LOWERING TO
VALLEY BOTTOM IN THE AFTERNOON. WIND BECOMING NORTHEAST 20 KM/H
GUSTING TO 40 IN THE MORNING. TEMPERATURE FALLING TO PLUS 3 IN THE
AFTERNOON. UV INDEX 2 OR LOW.
WEDNESDAY NIGHT..SNOW ENDING NEAR MIDNIGHT THEN CLEARING. LOCAL
AMOUNT 5 CM. WIND NORTHEAST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN
THE EVENING. LOW MINUS 5. WIND CHILL MINUS 7 OVERNIGHT.
BANFF NATIONAL PARK
HIGHWAY 93 - LAKE LOUISE TO SASKATCHEWAN RIVER CROSSING.
TONIGHT..MAINLY CLOUDY. PERIODS OF RAIN BEGINNING OVERNIGHT. SNOW
LEVEL LOWERING TO 1700 METRES BEFORE MORNING. LOW PLUS 2.
WEDNESDAY..PERIODS OF RAIN CHANGING TO PERIODS OF SNOW OR RAIN IN THE
AFTERNOON. LOCAL SNOWFALL AMOUNT 2 CM. SNOW LEVEL 1700 METRES
LOWERING TO VALLEY BOTTOM IN THE AFTERNOON. WIND BECOMING NORTHEAST
20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 8. UV INDEX 2 OR LOW.
WEDNESDAY NIGHT..PERIODS OF SNOW ENDING NEAR MIDNIGHT THEN CLEARING.
LOCAL AMOUNT 5 CM. WIND UP TO 15 KM/H. LOW MINUS 4. WIND CHILL
MINUS 7 OVERNIGHT.
HIGHWAY 93 - JASPER TO SASKATCHEWAN RIVER CROSSING
JASPER NATIONAL PARK.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS OVERNIGHT. SNOW
LEVEL LOWERING TO 1600 METRES BEFORE MORNING. LOW PLUS 2.
WEDNESDAY..CLOUDY. 30 PERCENT CHANCE OF RAIN SHOWERS IN THE MORNING.
PERIODS OF SNOW BEGINNING LATE IN THE MORNING. LOCAL SNOWFALL AMOUNT
5 CM. SNOW LEVEL 1600 METRES LOWERING TO VALLEY BOTTOM LATE IN THE
MORNING. WIND BECOMING NORTH 20 KM/H GUSTING TO 40 IN THE MORNING.
HIGH PLUS 4. UV INDEX 2 OR LOW.
WEDNESDAY NIGHT..PERIODS OF SNOW ENDING NEAR MIDNIGHT THEN CLEARING.
LOCAL AMOUNT 2 TO 4 CM. WIND UP TO 15 KM/H. LOW MINUS 3. WIND CHILL
NEAR MINUS 7.
NORDEGG - FORESTRY TRUNK ROAD HIGHWAY 734.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING AND BEFORE MORNING. LOW PLUS 5.
WEDNESDAY..CLOUDY. 30 PERCENT CHANCE OF RAIN SHOWERS IN THE MORNING.
SNOW OR RAIN BEGINNING LATE IN THE MORNING. LOCAL SNOWFALL AMOUNT
2 CM. WIND BECOMING NORTH 20 KM/H GUSTING TO 40 IN THE MORNING.
TEMPERATURE FALLING TO PLUS 3 IN THE AFTERNOON. UV INDEX 2 OR LOW.
WEDNESDAY NIGHT..SNOW ENDING IN THE EVENING THEN MAINLY CLOUDY WITH
30 PERCENT CHANCE OF FLURRIES. WIND UP TO 15 KM/H. LOW MINUS 5. WIND
CHILL MINUS 7 OVERNIGHT.
ROCKY MOUNTAIN HOUSE - CAROLINE.
TONIGHT..SHOWERS ENDING THIS EVENING THEN MAINLY CLOUDY. RISK OF A
THUNDERSTORM EARLY THIS EVENING. LOW 7.
WEDNESDAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS IN THE MORNING
AND EARLY IN THE AFTERNOON. CLEARING LATE IN THE AFTERNOON. WIND
BECOMING NORTHWEST 30 KM/H GUSTING TO 50 IN THE MORNING. TEMPERATURE
FALLING TO PLUS 5 IN THE AFTERNOON. UV INDEX 3 OR MODERATE.
WEDNESDAY NIGHT..A FEW CLOUDS. WIND NORTHWEST 30 KM/H GUSTING TO 50
BECOMING LIGHT IN THE EVENING. LOW MINUS 2. WIND CHILL MINUS 7
OVERNIGHT.
RED DEER - PONOKA - INNISFAIL - STETTLER.
TONIGHT..INCREASING CLOUDINESS EARLY THIS EVENING. 30 PERCENT CHANCE
OF SHOWERS. LOW 6.
WEDNESDAY..CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING.
RAIN BEGINNING IN THE MORNING. AMOUNT 5 TO 10 MM. WIND BECOMING
NORTH 20 KM/H GUSTING TO 40 IN THE MORNING THEN INCREASING TO 40
GUSTING TO 60 EARLY IN THE AFTERNOON. TEMPERATURE FALLING TO PLUS 4
IN THE AFTERNOON. UV INDEX 1 OR LOW.
WEDNESDAY NIGHT..RAIN ENDING EARLY IN THE EVENING THEN MAINLY CLOUDY.
WIND NORTH 40 KM/H GUSTING TO 60. LOW MINUS 2. WIND CHILL MINUS 9
OVERNIGHT.
HANNA - CORONATION - OYEN.
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT THEN
30 PERCENT CHANCE OF SHOWERS BEFORE MORNING. WIND BECOMING EAST
20 KM/H GUSTING TO 40 LATE THIS EVENING. LOW 6.
WEDNESDAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS IN THE MORNING
AND EARLY IN THE AFTERNOON. RAIN BEGINNING IN THE AFTERNOON. WIND
NORTHEAST 20 KM/H GUSTING TO 40 BECOMING NORTH 50 GUSTING TO 80
EARLY IN THE AFTERNOON. TEMPERATURE FALLING TO PLUS 4 IN THE
AFTERNOON. UV INDEX 4 OR MODERATE.
WEDNESDAY NIGHT..RAIN ENDING NEAR MIDNIGHT THEN CLOUDY WITH
30 PERCENT CHANCE OF FLURRIES OR RAIN SHOWERS OVERNIGHT. RAINFALL
AMOUNT 5 TO 10 MM. WIND NORTHWEST 50 KM/H GUSTING TO 80 DIMINISHING
TO 30 GUSTING TO 50 NEAR MIDNIGHT. LOW MINUS 1.
MEDICINE HAT - BOW ISLAND - SUFFIELD.
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT THEN
30 PERCENT CHANCE OF SHOWERS OVERNIGHT. WIND BECOMING EAST 20 KM/H
GUSTING TO 40 LATE THIS EVENING. LOW 11.
WEDNESDAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. WIND NORTHEAST
20 KM/H GUSTING TO 40 BECOMING NORTH 50 GUSTING TO 80 EARLY IN THE
AFTERNOON. HIGH 20. UV INDEX 4 OR MODERATE.
WEDNESDAY NIGHT..CLOUDY. 30 PERCENT CHANCE OF RAIN SHOWERS EARLY IN
THE EVENING. RAIN BEGINNING IN THE EVENING THEN CHANGING TO
30 PERCENT CHANCE OF FLURRIES OVERNIGHT. RAINFALL AMOUNT 5 MM. WIND
NORTHWEST 50 KM/H GUSTING TO 80 BECOMING NORTH 30 GUSTING TO 60 NEAR
MIDNIGHT. LOW PLUS 1.
CYPRESS HILLS PROVINCIAL PARK - FOREMOST.
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT THEN
30 PERCENT CHANCE OF SHOWERS OVERNIGHT. WIND BECOMING EAST 20 KM/H
GUSTING TO 40 LATE THIS EVENING. LOW 10.
WEDNESDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. RISK OF A
THUNDERSTORM IN THE AFTERNOON. WIND NORTHEAST 20 KM/H GUSTING TO 40
BECOMING NORTH 50 GUSTING TO 80 IN THE AFTERNOON. HIGH 23. UV
INDEX 5 OR MODERATE.
WEDNESDAY NIGHT..CLOUDY. 30 PERCENT CHANCE OF RAIN SHOWERS EARLY IN
THE EVENING. A FEW RAIN SHOWERS BEGINNING IN THE EVENING THEN
CHANGING TO A FEW FLURRIES OVERNIGHT. RISK OF A THUNDERSTORM EARLY
IN THE EVENING. RAINFALL AMOUNT 5 MM. WIND NORTH 50 KM/H GUSTING TO
80 EXCEPT NORTHWEST 70 GUSTING TO 90 OVER THE CYPRESS HILLS
OVERNIGHT. LOW MINUS 1.
LETHBRIDGE - TABER - MILK RIVER.
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS THIS EVENING THEN
30 PERCENT CHANCE OF SHOWERS OVERNIGHT. WIND BECOMING EAST 20 KM/H
GUSTING TO 40 LATE THIS EVENING. LOW 10.
WEDNESDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS IN THE
MORNING AND EARLY IN THE AFTERNOON. RAIN BEGINNING IN THE AFTERNOON.
WIND BECOMING NORTH 30 KM/H GUSTING TO 50 IN THE MORNING THEN
INCREASING TO 50 GUSTING TO 80 EARLY IN THE AFTERNOON. HIGH 16. UV
INDEX 4 OR MODERATE.
WEDNESDAY NIGHT..RAIN ENDING NEAR MIDNIGHT THEN CLEARING. AMOUNT
5 MM. WIND NORTH 40 KM/H GUSTING TO 60. LOW ZERO.
CARDSTON - FORT MACLEOD - MAGRATH.
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS THIS EVENING THEN
30 PERCENT CHANCE OF SHOWERS BEFORE MORNING. LOW 10.
WEDNESDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS IN THE
MORNING AND EARLY IN THE AFTERNOON. RAIN BEGINNING IN THE AFTERNOON.
WIND BECOMING NORTH 30 KM/H GUSTING TO 50 IN THE MORNING THEN
INCREASING TO 50 GUSTING TO 80 EARLY IN THE AFTERNOON. HIGH 15. UV
INDEX 4 OR MODERATE.
WEDNESDAY NIGHT..RAIN ENDING NEAR MIDNIGHT THEN CLEARING. AMOUNT
5 MM. WIND NORTH 40 KM/H GUSTING TO 60. LOW MINUS 2. WIND CHILL
MINUS 8 OVERNIGHT.
CROWSNEST PASS - PINCHER CREEK - WATERTON LAKES NAT. PARK.
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS THIS EVENING THEN
30 PERCENT CHANCE OF SHOWERS BEFORE MORNING. WIND WEST 20 KM/H
GUSTING TO 40 BECOMING LIGHT EARLY THIS EVENING. LOW 9.
WEDNESDAY..CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE MORNING. RAIN
BEGINNING NEAR NOON. LOCAL AMOUNT 5 TO 10 MM. WIND BECOMING
NORTHWEST 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 12. UV INDEX 4
OR MODERATE.
WEDNESDAY NIGHT..RAIN CHANGING TO SNOW NEAR MIDNIGHT. RAINFALL AMOUNT
5 MM. LOCAL SNOWFALL AMOUNT 2 TO 4 CM. SNOW LEVEL 1800 METRES
LOWERING TO VALLEY BOTTOM NEAR MIDNIGHT. WIND NORTHWEST 30 KM/H
GUSTING TO 50 BECOMING LIGHT IN THE EVENING. LOW MINUS 2. WIND CHILL
MINUS 7 OVERNIGHT.
END
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