Cool temperatures and a mix of sun and cloud are expected Tuesday, with gusty northeast winds developing through the afternoon. CTV London meteorologist Julie Atchison says temperatures will remain on the cooler side of normal, reaching a high of 17 C. Single-digit temperatures are expected Tuesday morning, with a few sunny breaks developing through the afternoon. Wednesday will bring a mix of sun and cloud to mainly cloudy skies, with a few showers possible in Lambton County, Essex County and Chatham-Kent. Temperatures will climb to 20 C. Thursday and Friday are expected to bring sunshine and highs of 20 C. Atchison says a stretch of pleasant weather will continue through the weekend and into early next week, with daytime highs ranging from 20 to 22 C.