Company reports GAAP diluted earnings per share of $0.68 for the quarter, affirms 2021 earnings guidance range, and announces a $0.62 per share quarterly dividend payable December 31, 2021

BUTTE, Mont. and SIOUX FALLS, S.D., Oct. 24, 2021 (GLOBE NEWSWIRE) — NorthWestern Corporation d/b/a NorthWestern Energy (Nasdaq: NWE) reported financial results for the three months ended
September 30, 2021. Net