Regional Weather Summary
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
615 NZUS01 KTFX 052200 RWSTFX MTZ301>330-061200- Regional Weather Synopsis National Weather Service Great Falls MT 400 PM MDT Sat Sep 05 2026 - Showers and thunderstorms tonight and Sunday, become a more widespread rainfall Sunday night into Monday. - An isolated severe storm possible Sunday. - Cool temperatures to begin the week, with some warmer afternoon temperatures for a few days mid week. &&