703 AWUS85 KGGW 022139 RWSGGW Regional Weather Summary National Weather Service Glasgow MT 239 PM MST Sat Dec 2 2017 This is the Regional Weather Summary for the eastern two thirds of Montana, Southern Saskatchewan, and Western North Dakota. Tonight through Sunday, a disturbance will move through the area and bring rain transitioning to snow. Almost no accumulating snow is expected across the Yellowstone Valley while areas north of the Hi-Line and the Little Rockies can expect 2 to 3 inches. Lows will be in the lower 20s to lower 30s. While Highs will range the lower 30s to mid 40s. Sunday night, skies will stay cloudy with remnant showers exiting after midnight. lows will span the lower teens to mid 20s. $$ weather.gov/glasgow