Prairie County Weather ForecastUnited StatesMTPrairie County4266TerryMostly Sunny4266FallonMostly SunnyClark ReservoirCoal Creek ReservoirFallonGrant ReservoirHomestead ReservoirHunter Creek ReservoirMcClure ReservoirMildredMurn ParkSaugusSilvertip ReservoirSouth Fork ReservoirTerryTerry Airport