AWUS85 KBYZ 120933 RWSMT Montana Weather Summary National Weather Service Billings MT 333 AM MDT Mon Sep 12 2022 This is the Regional Weather Summary for the eastern two-thirds of Montana, Southern Saskatchewan, and Western North Dakota. An upper level ridge will continue to influence the region today before a cold front passes through the region this afternoon. Above normal temperatures are expected for today before dropping back to near normal on Tuesday. Skies will be sunny today and partly cloudy tonight. Partly to mostly cloudy skies will be featured across the region on Tuesday. Highs today will range from the upper 70s to upper 80s. Lows tonight will range from the mid 40s to mid 50s. Highs on Tuesday will be in the upper 60s to lower 80s. $$ weather.gov/billings