The Buddies manager claimed before his team's 2-0 victory over Hearts in Edinburgh that journalists expected his team to "crumble" in the face of a rejuvenated Jambos side.
A defeat would have seen the Gorgie outfit - deducted 15 points for going into administration - close the gap on the Paisley side to just six points.
But goals from John McGinn and Paul McGowan at Tynecastle secured Saints' first win of the campaign and eased the pressure on Lennon, who reportedly faced the sack if his side lost.
Now Lennon says he was wrong to second guess what angle was taken by the media in the run-up to the game.
The Saints boss - whose side face St Johnstone at home in the Scottish Premiership on Saturday - said: "I owe an apology to a few of you guys in the media. In my comments before going through to Tynecastle, I said the press as well as 15,000 Hearts fans would expect us to go there and crumble and that it made for a nice exciting story that Hearts were getting closer, etc.
"But that was wrong of me. It's wrong of me to try and get inside anybody's head and and work out what they are going to write.
"I've been married for 18 years and I still can't get into my wife's head so it's wrong of me to try and get inside a journalist's head and [try to affect] what angle he is going to write his story on.
"For anybody who was offended by my presumption, then I sincerely apologise.
"I think the media has been great with me. It's difficult when you are going through the same situation and same media attention week in, week out.
"It can be difficult to talk about anything else and you are always trying to come up with a new angle. Sometimes that angle works for you because we can say it's everybody else against us. But the people who continue to write us off should continue to do so, because it seems to be working for us right now."
However, Lennon does admit that the negative press his side has received has affected his players.
He said: "We've made some small steps but there is a lot of work still to be done. It's great to see the boys with a smile on their faces because I think they get fed up with the media attention and what is written about them, the negativity. Professional pride hurts.
"But it's important the players go out there and write their own story by showing what true value."
St Mirren now welcome Tommy Wright's side to Paisley having leapfrogged Kilmarnock into 10th place.
But Lennon is targeting further climbs.
He said: "If you look at where St Johnstone finished last season - third position - after a very poor start, that can be our inspiration."