A Fox News meteorologist was pummeled by a group of teens when he tried to stop them from harassing another straphanger on a Manhattan subway early Sunday, cops and the prognosticator said.

Weatherman Adam Klotz, 37, recounted the vicious attack in an Instagram video, appearing bruised and battered as he described how he was going home on a train after watching the New York Giants NFL playoff game at a bar when he saw “this older gentleman was being hassled by this group of seven or eight teens.”

“I was like, ‘Yo, guys, cut that out.’ And they decided, ‘All right, if he’s not going to get it, you’re going to get it.’ And boy did they give it to me,” Klotz said. “They had me on the ground. My ribs are all bruised up, too. {snip}”

Police sources said the meteorologist was on a No. 1 train around 1:15 a.m. when he confronted the teens, who may have been smoking weed at the time, too.

The young suspects fled the train at the 18th Street station after the assault, but three of them — two 15-year-olds and a 17-year-old — were soon nabbed by cops, sources said.

Police eventually cut the trio loose.

“Juvenile reports were prepared, and their parents were called to pick them up,” a rep for the NYPD said Sunday.

It’s unclear why the three nabbed suspects were released without facing charges, but an NYPD spokesman ​claimed​ Sunday that the department did not have that option because of their ages​ and the fact that the crime involved an apparent misdemeanor​.

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