Regional Weather Summary
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
939 NZUS01 KTFX 221000 RWSTFX MTZ301>330-230000- Regional Weather Synopsis National Weather Service Great Falls MT 400 AM MDT Tue Sep 22 2026 - Above average warmth through Friday. - Scattered showers and isolated thunderstorms primarily across southwest MT this evening and overnight. - Pacific weather system brings windy and cooler conditions for the upcoming weekend. &&