Regional Weather Summary
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
181 AWUS85 KTFX 212300 RWSTFX MTZ301>330-221300- Regional Weather Synopsis National Weather Service Great Falls MT 400 PM MST Fri Nov 21 2025 - Valley fog may return to the valleys of Southwestern Montana overnight tonight. - First signs of an upcoming pattern change arrive Monday with cooler temperatures and some mountain snowfall. - A more significant pattern change looks to arrive late next week, bringing the coldest air of the season so far and the possibility of snow to all elevations. &&