A warm, sunny Wednesday is in store for southeastern Alberta, with Environment Canada forecasting highs of 18 to 21 C across the region under clear skies and southwest winds gusting to 40 km/h. The pleasant stretch continues Thursday before rain — and possibly snow at higher elevations — moves in Friday, dropping temperatures sharply.

Medicine Hat and Redcliff

At 6 a.m. at the Medicine Hat airport, skies were clear and the temperature was 8.1 C, with a south-southwest wind at 15 km/h gusting to 28 km/h. Environment Canada calls for sunny skies Wednesday with a southwest wind 20 km/h gusting to 40 and a high of 21 C; UV index is 2 or low. Wednesday night will be clear with that wind continuing before going light overnight and a low of plus 4. Thursday brings another sunny day and a high of 21 C.

Irvine

Irvine recorded 10.4 C at 6 a.m. Wednesday with a south-southeast wind at 3 km/h. Environment Canada forecasts a sunny Wednesday with a southwest wind 20 km/h gusting to 40 km/h and a high of 21 C; UV index 2 or low. The night turns clear, with gusty southwest winds easing to light overnight and a low of plus 4. Thursday will be sunny again with a high of 21 C before cloud and a 30 per cent chance of showers Thursday night.

Bow Island

Bow Island was the coolest of the valley communities at 6 a.m. Wednesday, coming in at 3.7 C with a south-southeast wind at 19 km/h. Environment Canada expects sunny skies to develop through the day with a southwest wind 20 km/h gusting to 40 and a high of 21 C; UV index 2 or low. Conditions stay clear Wednesday night, with the wind becoming light by morning and a low of plus 4. Thursday will be sunny with a high of 21 C.

Elkwater and Cypress Hills

At Lodge Creek, the thermometer read minus 2.7 C at 6 a.m. Wednesday, with a wind chill of minus 5 and a west wind at 5 km/h. Environment Canada forecasts sunny skies for Elkwater and Cypress Hills with a southeast wind 20 km/h gusting to 40 and a high of 18 C; UV index 2 or low. Wednesday night will be clear with the wind becoming light near midnight and a low of plus 4. Thursday will be sunny with a southeast wind developing near noon and a high of 20 C.

Brooks

Brooks recorded 1.2 C at 6 a.m. Wednesday with a south-southeast wind at 11 km/h. Environment Canada calls for sunny skies with a southwest wind developing at 20 km/h in the afternoon and a high of 20 C; UV index 2 or low. Wednesday night will see a few clouds, with the wind going light by evening and a low of plus 1. Thursday will be mainly sunny, becoming a mix of sun and cloud in the afternoon, with a high of 20 C — and a 60 per cent chance of showers Thursday night with a low of plus 4.

Outlook

Thursday remains warm and mostly sunny across the region, with highs of 20 to 21 C, before a marked change Friday brings rain — and for Brooks, possible rain or snow — with highs falling to 3 to 8 C and gusty winds. Friday night, rain showers could mix with flurries across much of the area, with lows ranging from minus 2 to minus 4, though Brooks should see clearing with a low of minus 3, according to Environment Canada.

Forecasts and observations from Environment Canada.

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