FPUS65 KTFX 052138 AFPTFX Central and Southwest Montana Area Forecast National Weather Service Great Falls MT 337 PM MDT Wed Aug 5 2026 MTZ301>314-316>318-061200- Central Montana- National Weather Service Great Falls MT 337 PM MDT Wed Aug 5 2026 .TONIGHT...Mostly clear. Patchy smoke. Lows 50 to 60. .THURSDAY...Sunny. Patchy smoke in the morning, then areas of smoke in the afternoon. Highs 80 to 90...70 to 80 in the mountains. .THURSDAY NIGHT...Mostly clear. Areas of smoke in the evening. Patchy smoke after midnight. Lows 50 to 55. .FRIDAY...Clear. Highs 85 to 90. .SATURDAY...Mostly clear. Lows 55 to 60. Highs 85 to 95. .SUNDAY...Mostly clear. Lows 55 to 60. Highs 80 to 90. .MONDAY...Mostly clear. Lows 50 to 60. Highs 80 to 90. $$ MTZ315-319>330-061200- Southwest Montana- National Weather Service Great Falls MT 337 PM MDT Wed Aug 5 2026 .TONIGHT...Mostly clear. Patchy smoke in the evening, then areas of smoke after midnight. Lows 50 to 60. .THURSDAY...Sunny. Areas of smoke. Highs 80 to 90...70 to 80 in the mountains. .THURSDAY NIGHT...Mostly clear. Areas of smoke. Lows 50 to 60. .FRIDAY...Mostly clear. Highs 85 to 95. .SATURDAY...Mostly clear. Lows 55 to 60. Highs 80 to 90. .SUNDAY...Mostly clear. Lows 50 to 60. Highs 80 to 90. .MONDAY...Mostly clear. Lows 50 to 55. Highs 80 to 90. $$