Dougie Freedman's side knew that a win would send his side into the playoff places, but Huddersfield Town were the better side for much of the first half. Mendes opened the scoring with the visitors' first attempt on goal after 23 minutes.
The hosts put considerable pressure on their opponents in the second half, but were unable to find an equaliser until the 84th minute, when Huws fired a shot from distance into the Forest goal.
Find out how all the action unfolded with Sports Mole's full text commentary below.
SUBS: Smith, Hogg, Lolley, Wells, Dempsey, Allinson, Bojaj
SUBS: Ebecilio, Oliveira, Williams, Blackstock, Evtimov, Burke, Walker
"Back-to-back wins at any level, and especially in the Championship, are huge and now I'm demanding more," Powell said.
"There is some added spice to knowing your opponent, it can add something to it. I am sure it will be a good game. We will go there with confidence," Blackstock told the Nottingham Post.