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Extended forecasts for southern Alberta and the Mountain Parks


* NOTE: Corrected and/or amended bulletins are listed first *

 
FPCN53 CWWG 202130
Extended forecasts from Friday 22 May to Tuesday 26 May for Southern
Alberta and the mountain parks issued by Environment Canada at
3:30 p.m. MDT Wednesday 20 May 2026.
The next scheduled forecast will be issued at 4:30 a.m. MDT Thursday.

City of Calgary.
Friday..Sunny. High 20.
Friday night..Clear. Low 8.
Saturday..Sunny. High 23.
Saturday night..Clear. Low 11.
Sunday..Sunny. High 19.
Sunday night..Cloudy periods. Low 6.
Monday..Cloudy with 40 percent chance of showers. High 17.
Monday night..Cloudy with 60 percent chance of showers. Low 8.
Tuesday..Cloudy with 60 percent chance of showers. High 19.
Normals for the period..Low plus 4. High 17.

Airdrie - Cochrane - Olds - Sundre.
Friday..A mix of sun and cloud with 30 percent chance of showers.
 High 19.
Friday night..Clear. Low plus 2.
Saturday..Sunny. High 22.
Saturday night..Clear. Low 6.
Sunday..Sunny. High 19.
Sunday night..Cloudy periods with 30 percent chance of showers. Low
 plus 4.
Monday..A mix of sun and cloud with 30 percent chance of showers.
 High 15.
Monday night..Cloudy with 60 percent chance of showers. Low plus 5.
Tuesday..Cloudy with 60 percent chance of showers. High 17.
Normals for the period..Low plus 3. High 17.

Okotoks - High River - Claresholm.
Friday..Sunny. High 20.
Friday night..Clear. Low plus 5.
Saturday..Sunny. High 24.
Saturday night..Clear. Low 10.
Sunday..Sunny. High 24.
Sunday night..Cloudy periods. Low 6.
Monday..Cloudy with 30 percent chance of showers. High 18.
Monday night..Cloudy with 60 percent chance of showers. Low 8.
Tuesday..Cloudy with 60 percent chance of showers. High 20.
Normals for the period..Low plus 3. High 16.

Drumheller - Three Hills.
Friday..Sunny. High 22.
Friday night..Clearing. Low 6.
Saturday..Sunny. High 26.
Saturday night..Clear. Low 11.
Sunday..Sunny. High 24.
Sunday night..Cloudy periods. Low plus 5.
Monday..A mix of sun and cloud. High 21.
Monday night..Cloudy with 30 percent chance of showers. Low 8.
Tuesday..Cloudy with 40 percent chance of showers. High 21.
Normals for the period..Low plus 5. High 18.

Brooks - Strathmore - Vulcan.
Friday..Sunny. High 23.
Friday night..Cloudy periods. Low 7.
Saturday..Sunny. High 26.
Saturday night..Clear. Low 12.
Sunday..Sunny. High 27.
Sunday night..Cloudy periods. Low 7.
Monday..A mix of sun and cloud. High 24.
Monday night..Cloudy with 40 percent chance of showers. Low 10.
Tuesday..Cloudy with 40 percent chance of showers. High 24.
Normals for the period..Low plus 5. High 19.

Kananaskis - Canmore.
Friday..Sunny. High 21.
Friday night..Clear. Low 8.
Saturday..Sunny. High 22.
Saturday night..Clear. Low 12.
Sunday..Sunny. High 20.
Sunday night..Cloudy with 60 percent chance of showers. Low plus 5.
Monday..Cloudy with 60 percent chance of showers. High 14.
Monday night..Cloudy with 70 percent chance of showers. Low plus 5.
Tuesday..Cloudy with 60 percent chance of showers. High 17.
Normals for the period..Low plus 2. High 15.

Banff National Park.
Friday..Sunny. High 17.
Friday night..Clear. Low plus 3.
Saturday..Sunny. High 20.
Saturday night..Clear. Low 8.
Sunday..Sunny. High 15.
Sunday night..Cloudy with 70 percent chance of showers. Low plus 3.
Monday..Cloudy with 60 percent chance of showers. High 12.
Monday night..Cloudy with 70 percent chance of showers. Low plus 4.
Tuesday..Cloudy with 60 percent chance of showers. High 16.
Normals for the period..Low plus 1. High 15.

Highway 93 - Lake Louise to Saskatchewan River Crossing.
Friday..Sunny. High 17.
Friday night..Clear. Low plus 3.
Saturday..Sunny. High 20.
Saturday night..Clear. Low 8.
Sunday..Sunny. High 15.
Sunday night..Cloudy with 70 percent chance of showers. Low plus 3.
Monday..Cloudy with 60 percent chance of showers. High 12.
Monday night..Cloudy with 70 percent chance of showers. Low plus 4.
Tuesday..Cloudy with 60 percent chance of showers. High 16.
Normals for the period..Low plus 1. High 15.

Highway 93 - Jasper to Saskatchewan River Crossing.
Friday..A mix of sun and cloud. High 19.
Friday night..Cloudy periods. Low plus 4.
Saturday..A mix of sun and cloud. High 21.
Saturday night..Cloudy with 60 percent chance of showers. Low 6.
Sunday..Cloudy with 60 percent chance of showers. High 13.
Sunday night..Cloudy with 30 percent chance of showers. Low plus 3.
Monday..Cloudy. High 12.
Monday night..Cloudy with 60 percent chance of showers. Low plus 3.
Tuesday..A mix of sun and cloud. High 18.
Normals for the period..Low plus 3. High 17.

Jasper National Park.
Friday..A mix of sun and cloud. High 19.
Friday night..Cloudy periods. Low plus 4.
Saturday..A mix of sun and cloud. High 21.
Saturday night..Cloudy with 60 percent chance of showers. Low 6.
Sunday..Cloudy with 60 percent chance of showers. High 13.
Sunday night..Cloudy with 30 percent chance of showers. Low plus 3.
Monday..Cloudy. High 12.
Monday night..Cloudy with 60 percent chance of showers. Low plus 3.
Tuesday..A mix of sun and cloud. High 18.
Normals for the period..Low plus 3. High 17.

Nordegg - Forestry Trunk Road Highway 734.
Friday..A mix of sun and cloud with 30 percent chance of showers.
 High 17.
Friday night..Clear. Low plus 2.
Saturday..Sunny. High 21.
Saturday night..Clear. Low plus 5.
Sunday..Sunny. High 13.
Sunday night..Cloudy periods with 30 percent chance of showers. Low
 plus 3.
Monday..Cloudy with 60 percent chance of showers. High 14.
Monday night..Cloudy with 60 percent chance of showers. Low plus 4.
Tuesday..Cloudy with 60 percent chance of showers. High 17.
Normals for the period..Low zero. High 15.

Rocky Mountain House - Caroline.
Friday..A mix of sun and cloud with 30 percent chance of showers.
 High 19.
Friday night..Clear. Low plus 3.
Saturday..Sunny. High 22.
Saturday night..Clear. Low 6.
Sunday..Sunny. High 17.
Sunday night..Cloudy periods with 30 percent chance of showers. Low
 plus 3.
Monday..Cloudy. High 15.
Monday night..Cloudy with 40 percent chance of showers. Low plus 5.
Tuesday..Cloudy with 60 percent chance of showers. High 17.
Normals for the period..Low plus 3. High 17.

Red Deer - Ponoka - Innisfail - Stettler.
Friday..Increasing cloudiness. High 21.
Friday night..Clearing. Low plus 5.
Saturday..Sunny. High 23.
Saturday night..Clear. Low 8.
Sunday..Sunny. High 19.
Sunday night..Cloudy periods. Low plus 3.
Monday..Cloudy. High 17.
Monday night..Cloudy with 60 percent chance of showers. Low 6.
Tuesday..Cloudy with 60 percent chance of showers. High 18.
Normals for the period..Low plus 5. High 18.

Hanna - Coronation - Oyen.
Friday..Cloudy. High 21.
Friday night..Clearing. Low 7.
Saturday..Sunny. High 24.
Saturday night..Clear. Low 9.
Sunday..Sunny. High 23.
Sunday night..Cloudy periods. Low 6.
Monday..A mix of sun and cloud. High 23.
Monday night..Cloudy periods. Low 9.
Tuesday..A mix of sun and cloud with 40 percent chance of showers.
 High 24.
Normals for the period..Low plus 5. High 19.

Medicine Hat - Bow Island - Suffield.
Friday..Sunny. High 22.
Friday night..Increasing cloudiness. Low 9.
Saturday..Sunny. High 27.
Saturday night..Clear. Low 13.
Sunday..Sunny. High 29.
Sunday night..Cloudy periods. Low 8.
Monday..A mix of sun and cloud. High 28.
Monday night..Cloudy periods with 30 percent chance of showers.
 Low 11.
Tuesday..Cloudy with 30 percent chance of showers. High 28.
Normals for the period..Low 6. High 20.

Cypress Hills Provincial Park - Foremost.
Friday..Sunny. High 20.
Friday night..Increasing cloudiness. Low 7.
Saturday..Sunny. High 24.
Saturday night..Clear. Low 11.
Sunday..Sunny. High 27.
Sunday night..Cloudy periods. Low 8.
Monday..A mix of sun and cloud. High 27.
Monday night..Cloudy periods with 30 percent chance of showers.
 Low 11.
Tuesday..A mix of sun and cloud with 30 percent chance of showers.
 High 27.
Normals for the period..Low 6. High 20.

Lethbridge - Taber - Milk River.
Friday..Sunny. High 21.
Friday night..Clearing. Low 7.
Saturday..Sunny. High 26.
Saturday night..Clear. Low 12.
Sunday..Sunny. High 26.
Sunday night..Cloudy periods. Low 6.
Monday..A mix of sun and cloud with 30 percent chance of showers.
 High 22.
Monday night..Cloudy with 40 percent chance of showers. Low 10.
Tuesday..Cloudy with 70 percent chance of showers. High 22.
Normals for the period..Low plus 5. High 19.

Cardston - Fort MacLeod - Magrath.
Friday..Sunny. High 20.
Friday night..Clear. Low 8.
Saturday..Sunny. High 23.
Saturday night..Clear. Low 12.
Sunday..Sunny. High 22.
Sunday night..Cloudy periods. Low 7.
Monday..Cloudy with 30 percent chance of showers. High 21.
Monday night..Cloudy with 40 percent chance of showers. Low 10.
Tuesday..Cloudy with 40 percent chance of showers. High 22.
Normals for the period..Low plus 4. High 18.

Crowsnest Pass - Pincher Creek - Waterton Lakes Nat. Park.
Friday..Sunny. High 19.
Friday night..Clear. Low 6.
Saturday..Sunny. High 22.
Saturday night..Clear. Low 10.
Sunday..Sunny. High 21.
Sunday night..Cloudy periods. Low 7.
Monday..Cloudy with 40 percent chance of showers. High 19.
Monday night..Cloudy with 60 percent chance of showers. Low 9.
Tuesday..Cloudy with 40 percent chance of showers. High 21.
Normals for the period..Low plus 4. High 16.

End
$$$$^^

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