The Fir Park side's gutsy 0-0 draw at Aberdeen maintained their second place – and kept them on track for Europe.
The result means Well have taken their unbeaten run to three games and racked up seven points from a possible nine in that sequence.
And frontman Higdon believes the side have hit top form at the right time.
He said: "It is never easy to go to a place like Aberdeen and to be fair the conditions made it all but impossible for us to play our best football.
"But we got a very valuable point, kept a clean sheet and kept our momentum going.
"To have taken four points from a possible six from consecutive visits to places like Tynecastle and Pittodrie is very satisfying and we have backed up our recent victory over Celtic.
"So we have momentum behind us as we enter the final run of three games ahead of the split.
"Now we have Hibs coming to Fir Park on Friday night and if we can get a positive result there that should be enough to consolidate our position in the top half of the table.
"That is the target because it guarantees us a Europa League slot."
Well had a superb display from keeper Darren Randolph to thank for their clean sheet and accompanying point.
The big No.1 defied the Dons with key saves from Scott Vernon, Niall McGinn and Josh Magennis.
But the stopper was keen to play down his saves and instead praised his defence, who did a good job of keeping Aberdeen, for the most part, to shots from distance.
"I didn't know much about the Vernon shot," he said. "I just tried to make myself as big as possible and luckily he's headed it against my hand. My other saves were pretty routine.
On a windy day in the Granite City, Randolph conceded the conditions did not make for a great spectacle on a day when the Dons had handed out 1,500 tickets to local kids.
He said: "The wind was a problem with balls in the air, and the pitch wasn't great for playing the ball on the ground.
"It was a game where we had to do the ugly stuff."
Motherwell had beaten both Celtic and Hearts in the games before this, and their run of good form recently leaves the Republic of Ireland internationalist optimistic they can finish the season strongly.
He concluded: "Hopefully one more win will secure our place in the top six, and we can then concentrate on cementing second place."