Didsbury residents can expect a stretch of unusually warm, sunny weather this week, with daytime highs reaching the mid-20s before a sharp cool-down by the weekend. Environment Canada is forecasting sunny skies and a high of 27°C on Monday, well above the seasonal normal of 15°C.
Overnight lows will drop to around 3°C tonight and Tuesday night, creating a risk of frost. Clear skies during the day allow heat to escape quickly after sunset, and the Alberta Climate Information Service says the chance of frost in central Alberta by late September is over 80 percent.
Gardeners and anyone with frost-sensitive plants should cover them or bring them indoors overnight. The warm afternoons will be ideal for outdoor activities, but morning surfaces may be slippery where frost forms.
The pleasant conditions won’t last all week. Rain is expected Thursday night, and by Friday the high will only reach 8°C. Saturday night could dip to 0°C, with cloudy periods. Historical weather data for Didsbury on September 20 shows big swings from year to year, ranging from 6°C in 2010 and 2017 to 29°C in 2025.
Normal temperatures for late September in Didsbury are a high of 15°C and a low of 1°C. Sunrise is at 7:21 a.m. and sunset at 7:37 p.m.