215
FPCN15 CWWG 211037
FORECASTS FOR SOUTHERN ALBERTA AND THE MOUNTAIN PARKS ISSUED BY
ENVIRONMENT CANADA AT 5:00 A.M. MDT TUESDAY 21 APRIL 2026 FOR TODAY
AND WEDNESDAY.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 11:00 A.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..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS THIS
AFTERNOON. HIGH 23. UV INDEX 5 OR MODERATE.
TONIGHT..BECOMING CLOUDY THIS EVENING. 60 PERCENT CHANCE OF SHOWERS
OVERNIGHT. LOW 7.
WEDNESDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING.
RAIN BEGINNING 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. TEMPERATURE FALLING TO PLUS 5 IN THE AFTERNOON. UV
INDEX 1 OR LOW.
OKOTOKS - HIGH RIVER - CLARESHOLM.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS THIS
AFTERNOON. HIGH 24. UV INDEX 5 OR MODERATE.
TONIGHT..BECOMING CLOUDY THIS EVENING. 60 PERCENT CHANCE OF SHOWERS
OVERNIGHT. LOW 8.
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 12. UV INDEX 2 OR LOW.
AIRDRIE - COCHRANE - OLDS - SUNDRE.
TODAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS.
HIGH 23. UV INDEX 5 OR MODERATE.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. 60 PERCENT CHANCE OF SHOWERS OVERNIGHT. LOW 7.
WEDNESDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING.
RAIN BEGINNING 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. TEMPERATURE FALLING TO PLUS 5 IN THE AFTERNOON. UV
INDEX 1 OR LOW.
DRUMHELLER - THREE HILLS.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS EARLY
THIS MORNING AND LATE THIS AFTERNOON. HIGH 23. UV INDEX 5 OR
MODERATE.
TONIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW 7.
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 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.
BROOKS - STRATHMORE - VULCAN.
TODAY..SUNNY. HIGH 26. UV INDEX 6 OR HIGH.
TONIGHT..INCREASING CLOUDINESS. 30 PERCENT CHANCE OF SHOWERS
OVERNIGHT. WIND BECOMING EAST 20 KM/H GUSTING TO 40 LATE THIS
EVENING. LOW 8.
WEDNESDAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS IN THE MORNING
AND EARLY IN THE AFTERNOON. RAIN BEGINNING EARLY IN THE AFTERNOON.
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 15. UV INDEX 4 OR MODERATE.
KANANASKIS - CANMORE.
TODAY..SUNNY THIS MORNING AND EARLY THIS AFTERNOON THEN A MIX OF SUN
AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS THIS AFTERNOON. HIGH 20.
UV INDEX 5 OR MODERATE.
TONIGHT..BECOMING CLOUDY THIS EVENING. PERIODS OF RAIN BEGINNING
OVERNIGHT. LOW PLUS 5.
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 1 IN THE
AFTERNOON. UV INDEX 2 OR LOW.
BANFF NATIONAL PARK
HIGHWAY 93 - LAKE LOUISE TO SASKATCHEWAN RIVER CROSSING.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS EARLY
THIS MORNING. SNOW LEVEL 1900 METRES RISING TO 2500 METRES THIS
MORNING. HIGH 19. UV INDEX 5 OR MODERATE.
TONIGHT..INCREASING CLOUDINESS. PERIODS OF RAIN BEGINNING OVERNIGHT.
SNOW LEVEL LOWERING TO 1700 METRES BEFORE MORNING. LOW PLUS 4.
WEDNESDAY..PERIODS OF RAIN CHANGING TO PERIODS OF SNOW MIXED WITH
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. TEMPERATURE FALLING
TO ZERO IN THE AFTERNOON. UV INDEX 2 OR LOW.
HIGHWAY 93 - JASPER TO SASKATCHEWAN RIVER CROSSING
JASPER NATIONAL PARK.
TODAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
MORNING. CLEARING THIS AFTERNOON. SNOW LEVEL 1900 METRES RISING TO
2500 METRES THIS MORNING. HIGH 18. UV INDEX 4 OR MODERATE.
TONIGHT..INCREASING CLOUDINESS. 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
2 TO 4 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. TEMPERATURE STEADY NEAR PLUS 1. UV INDEX 2 OR LOW.
NORDEGG - FORESTRY TRUNK ROAD HIGHWAY 734.
TODAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 19. UV
INDEX 4 OR MODERATE.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS BEFORE MORNING.
LOW PLUS 4.
WEDNESDAY..CLOUDY. 30 PERCENT CHANCE OF RAIN SHOWERS IN THE MORNING.
SNOW MIXED WITH RAIN BEGINNING LATE IN THE MORNING. LOCAL SNOWFALL
AMOUNT 2 CM. WIND BECOMING NORTH 20 KM/H GUSTING TO 40 IN THE
MORNING. TEMPERATURE STEADY NEAR PLUS 3. UV INDEX 2 OR LOW.
ROCKY MOUNTAIN HOUSE - CAROLINE.
TODAY..MAINLY CLOUDY WITH 70 PERCENT CHANCE OF SHOWERS CHANGING TO
30 PERCENT CHANCE OF SHOWERS THIS MORNING. SHOWERS BEGINNING THIS
AFTERNOON. HIGH 22. UV INDEX 5 OR MODERATE.
TONIGHT..SHOWERS ENDING THIS EVENING THEN MAINLY CLOUDY. LOW PLUS 5.
WEDNESDAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. WIND BECOMING
NORTHWEST 20 KM/H GUSTING TO 40 IN THE MORNING THEN INCREASING TO 40
GUSTING TO 60 EARLY IN THE AFTERNOON. TEMPERATURE STEADY NEAR
PLUS 5. UV INDEX 3 OR MODERATE.
RED DEER - PONOKA - INNISFAIL - STETTLER.
TODAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS.
HIGH 22. UV INDEX 5 OR MODERATE.
TONIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW PLUS 5.
WEDNESDAY..CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING.
RAIN BEGINNING IN THE MORNING. AMOUNT 5 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 STEADY NEAR PLUS 5. UV
INDEX 1 OR LOW.
HANNA - CORONATION - OYEN.
TODAY..MAINLY SUNNY. WIND BECOMING NORTH 20 KM/H GUSTING TO 40 THIS
MORNING THEN LIGHT THIS AFTERNOON. HIGH 23. UV INDEX 5 OR MODERATE.
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 PLUS 5.
WEDNESDAY..CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING.
RAIN BEGINNING IN THE MORNING. AMOUNT 5 TO 10 MM. WIND NORTHEAST
20 KM/H GUSTING TO 40 BECOMING NORTH 50 GUSTING TO 80 EARLY IN THE
AFTERNOON. TEMPERATURE STEADY NEAR 6. UV INDEX 1 OR LOW.
MEDICINE HAT - BOW ISLAND - SUFFIELD.
TODAY..MAINLY SUNNY. HIGH 25. UV INDEX 6 OR HIGH.
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 12.
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 21. UV INDEX 4 OR MODERATE.
CYPRESS HILLS PROVINCIAL PARK - FOREMOST.
TODAY..MAINLY SUNNY. HIGH 26. UV INDEX 6 OR HIGH.
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 12.
WEDNESDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. WIND
NORTHEAST 20 KM/H GUSTING TO 40 BECOMING NORTH 50 GUSTING TO 80 IN
THE AFTERNOON. HIGH 20. UV INDEX 5 OR MODERATE.
LETHBRIDGE - TABER - MILK RIVER.
TODAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD THIS AFTERNOON. WIND
SOUTHWEST 20 KM/H BECOMING LIGHT THIS MORNING. HIGH 26. UV INDEX 6
OR HIGH.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS OVERNIGHT. WIND
BECOMING EAST 20 KM/H GUSTING TO 40 LATE THIS EVENING. LOW 11.
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.
CARDSTON - FORT MACLEOD - MAGRATH.
TODAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD THIS AFTERNOON.
HIGH 24. UV INDEX 6 OR HIGH.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS OVERNIGHT.
LOW 8.
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 20 KM/H GUSTING TO 40 THEN INCREASING TO 40
GUSTING TO 60 LATE IN THE MORNING. HIGH 13. UV INDEX 4 OR MODERATE.
CROWSNEST PASS - PINCHER CREEK - WATERTON LAKES NAT. PARK.
TODAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD THIS AFTERNOON.
HIGH 22. UV INDEX 6 OR HIGH.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS OVERNIGHT.
LOW 8.
WEDNESDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS IN THE
MORNING AND EARLY IN THE AFTERNOON. RAIN BEGINNING EARLY IN THE
AFTERNOON. LOCAL AMOUNT 5 MM. SNOW LEVEL LOWERING TO 1400 METRES
LATE IN THE AFTERNOON. WIND BECOMING NORTHWEST 30 KM/H GUSTING TO 50
IN THE MORNING. HIGH 14. UV INDEX 4 OR MODERATE.
END
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