FPUS65 KTFX 262139 AFPTFX Central and Southwest Montana Area Forecast National Weather Service Great Falls MT 338 PM MDT Thu Mar 26 2026 MTZ301>314-316>318-271200- Central Montana- National Weather Service Great Falls MT 338 PM MDT Thu Mar 26 2026 .TONIGHT...Mostly clear. Lows 15 to 25. .FRIDAY...Sunny. Highs 50 to 60...40 to 50 in the mountains. .FRIDAY NIGHT...Mostly cloudy. Lows 25 to 35. .SATURDAY...Mostly cloudy. Highs 55 to 65. .SUNDAY...Mostly cloudy. Chance of rain. Lows 25 to 35. Highs 45 to 55. .MONDAY...Mostly cloudy. Slight chance of rain and snow. Lows 30 to 35. Highs 50 to 60. .TUESDAY...Mostly cloudy. Chance of snow. Lows 20 to 30. Highs 40 to 45. $$ MTZ315-319>330-271200- Southwest Montana- National Weather Service Great Falls MT 338 PM MDT Thu Mar 26 2026 .TONIGHT...Mostly clear. Lows 15 to 25. Gusts up to 35 mph in the evening. .FRIDAY...Sunny. Highs 50 to 60...40 to 50 in the mountains. .FRIDAY NIGHT...Partly cloudy. Lows 30 to 35. .SATURDAY...Partly cloudy. Highs 55 to 65. .SUNDAY...Partly cloudy. Lows 30 to 40. Highs 55 to 65. .MONDAY...Mostly cloudy. Chance of rain and snow. Lows 35 to 40. Highs 55 to 65. .TUESDAY...Mostly cloudy. Chance of snow and rain. Lows 30 to 35. Highs 45 to 55. $$