Kenneth Faried finished with 25 points and Wilson Chandler scored 12 for the Nuggets, who were coming off a dramatic victory Friday at Miami.
Kyle Korver, who hit a pair of free throws in the closing seconds to make it 96-92, scored 18 points and Pero Antic added 16 for Atlanta.
Denver erased a 21-point deficit in the third quarter to take its first lead at 81-80 lead on Darrell Arthur’s two free throws with 7:10 remaining.
But Teague hit a 3 with 3:59 remaining that put the Hawks up 89-87 and followed with a long jumper to make it 91-89 at the 1:51 mark.
Ty Lawson, Denver’s leading scorer this season, handed out 11 assists, but went 0 for 12 from the field and finished with just two points.
Before winning Monday at Utah, the Hawks had lost 14 of 15 to drop from third to eighth in the Eastern Conference. The Hawks are 3½ games ahead of New York for the eighth and final Eastern Conference playoff spot.
Atlanta’s three-game winning streak is its longest since beating the Jazz on Dec. 20.
The Nuggets, coming off a 102-97 victory Friday at Miami, had won two in a row and four of six.
NETS: Signed Jason Collins for the rest of the season.
The NBA’s first openly gay player had finished his second 10-day contract, which meant the Nets had to sign him for the remainder of the season if they wanted to keep him.
Collins has added five points, six rebounds and six steals in eight games since signing his first deal on Feb. 23.
He’s been a reliable veteran big man on a team that has lost center Brook Lopez for the season and has recently been without Kevin Garnett because of back spasms.
Collins is playing his 13th season in the league, including six previous seasons with the Nets.
PISTONS: Center Andre Drummond left the Pistons’ game Saturday night against Indiana because of a neck injury.
Drummond fell to the ground with 6:32 remaining in the first quarter, after he appeared to be hit in the head inadvertently by Roy Hibbert of the Pacers during a scramble near the basket. Drummond stayed down through an entire timeout, and a stretcher was eventually brought onto the court. But he was able to get up and walk off toward the tunnel with some assistance.