Saskatoon — The warm weather won't last long, as a low pressure system arrives overnight, bringing snow and cold air with it. We’ll see conditions deteriorate into Thursday morning with cooler days carrying us through the weekend. Here's the forecast for Saskatoon: Today – Sunny High: 18 Evening: 17 Thursday – Morning Flurries Morning Low: 1 Afternoon High: 4 Friday – Partly Sunny Morning Low: -9 Afternoon High: 7