Sherwood Park, Alberta, is in for a summerlike week as Environment Canada forecasts a high of 27 C on Monday, September 21, 2026. That is roughly 12 degrees above the seasonal normal of 15 C for this time of year. Sunny to mixed skies are expected through Wednesday, giving residents a chance to enjoy late-season outdoor activities before a cooling trend arrives Thursday.
The unseasonably warm weather is tied to a persistent ridge pattern influenced by El Nino conditions affecting much of Western Canada. The UV index will reach 4, which is considered moderate, so Environment Canada recommends sun protection during peak afternoon hours. Residents planning to spend time outside should also make sure to stay hydrated.
Thursday, September 24, will bring a mix of sun and cloud with a high of 16 C. Then on Friday, September 25, rain is expected with a high of only 10 C, followed by a 60 percent chance of showers Friday night. The weekend will feel noticeably cooler, marking a sharp turn from the warm spell earlier in the week.
There are currently no weather alerts in effect for Sherwood Park or the surrounding Strathcona County area. However, the broader region is experiencing drier-than-usual conditions. According to Environment Canada, Alberta and Saskatchewan are seeing higher-than-average temperatures and dry weather this September due to El Nino, which is prolonging drought conditions in many areas.
For residents, this week is a chance to squeeze in some final summer activities, whether that means hitting a local park, tending to the garden, or simply enjoying a walk without a jacket. Just remember to protect yourself from the sun during the afternoon and be ready for a much cooler, wetter end to the week.
