RIVERTON – Dry northwest flow will bring milder temperatures and breezy areas across the Cowboy State today. A Canadian cold front will plunge south into northern Wyoming around midnight tonight and south across central and southern Wyoming early Sunday morning. The front will spread snow across the northern and central mountains, and rain or a rain and snow mix across the basins east of the Continental Divide. Cooler temperatures, scattered rain and snow showers and areas of brisk north wind will follow the front during the day Sunday.