Sat Feb 22 12:13:20 AM EST 2025 Musselshell- Including the city of Roundup 1012 PM MST Fri Feb 21 2025 .REST OF TONIGHT...Partly cloudy. Lows in the mid 20s. Southwest winds 10 to 20 mph. .SATURDAY...Decreasing clouds. Highs in the lower 40s. Southwest winds 10 to 20 mph. .SATURDAY NIGHT...Mostly cloudy. Lows in the lower 30s. Southwest winds 10 to 20 mph. .SUNDAY...Cloudy. Highs in the mid 40s. Southwest winds 15 to 25 mph. .SUNDAY NIGHT...Mostly cloudy. A 20 percent chance of rain overnight. Lows in the upper 30s. Southwest winds 10 to 20 mph. .MONDAY...Mostly sunny. Highs in the upper 40s. .MONDAY NIGHT...Partly cloudy. Lows in the lower 30s. .TUESDAY...Partly sunny. Chance of rain in the morning, then slight chance of rain in the afternoon. Highs in the upper 40s. Chance of precipitation 30 percent. .TUESDAY NIGHT...Partly cloudy. Lows in the lower 30s. .WEDNESDAY...Sunny. Highs in the mid 40s. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 20s. .THURSDAY...Mostly sunny. Highs in the upper 40s. .THURSDAY NIGHT...Partly cloudy. Lows in the lower 30s. .FRIDAY...Mostly sunny. Highs around 50.