Southwestern Saskatchewan could see its first glimpse of snowfall this fall over the Thanksgiving weekend. Environment and Climate Change Canada is forecasting a significant drop in temperatures on Sunday, along with a strong chance of precipitation. Christy Climenhaga, a meteorologist with Environment Canada, said a strong low-pressure system is moving into the region from the United States. "It's bringing with it quite a bit of rainfall to much of southern Saskatchewan," she said. "With those cooler temperatures, you could see a mix of rain and snow. Because the ground is still warm from the mild weather leading up to it, a lot of that will melt initially, but you could see some snow accumulating locally." Environment Canada says the southwest could receive between five and 15 millimetres of rain and potentially two to five centimetres of snow. "It looks a bit better further east into Saskatchewan," Climenhaga said. "It will really depend on those temperatures, which will be quite close to the freezing mark for much of Sunday. "You'll see rain moving in probably Sunday morning. You could see a little bit of snow — a rain-snow mix — over the southwest Sunday morning, with everything tapering off by late Sunday afternoon." Climenhaga reminded motorists to check highway conditions over the Thanksgiving weekend before heading out. The cooler temperatures could be short-lived, with daytime highs on Wednesday and Thursday expected to reach 15 C.