Hours Of Operations NorthWestern Energy Montana Butte 59701 NorthWestern Energy Hours of Operation and Location in Butte, MT 59701 4.1 - 122 votes 40 E Broadway St, Butte, MT 59701 (888) 467-2669 Get Directions NorthWestern Energy Hours Category: Home & Garden Hours Hours may vary due to season or holiday reasons. For specific hours, please contact store directly. Map Explore ButteView More Apparel KmartCarharttCarter'sJCPenneyCatherines Sports Sports LaneTilly'sUnited SportsSport Center Jewelry Herberger'sJensen Jewelers Recommend For You A+ Roofing Artistic Designs A & M Construction Fix Computers S & S Connections A & P Food Store Arc Development LLC Market Street Sport Center