People planning activities outside over the next few days may want to reschedule for later in the week, because rain or possibly snow could blanket the region until Wednesday night.
A large, slow-moving storm system, that has the potential to drop multiple inches of rain in lower altitudes and snow above 7,000 feet in the Beartooth, Crazy and Absaroka mountains, is expected to arrive in Billings Monday night and stick around until Wednesday.
The National Weather Service has issued a Hazardous Weather Outlook, warning the most severe storms will be in the area between Miles City and Broadus.
Large hail and 1 to 2 inches of rain is expected, which could raise river levels and create flash flooding situations, the warning said.
Partly sunny skies and scattered showers and thunderstorms are expected after noon Monday and highs will reach 73.
A 50 percent chance for showers and thunderstorms is expected Monday night, as lows fall to 51. Winds from the east will be from 5 to 7 mph.
Skies will be mostly cloudy Thursday and highs will reach 68. A 60 percent chance of showers and thunderstorms is expected after noon. West northwest winds 6 to 8 mph is expected.
Showers and thunderstorms will continue Tuesday night and a 50 percent chance of showers and thunderstorms is expected. Skies will remain mostly cloudy and lows will fall to 46. West winds of 7 to 9 mph is expected.