Latics picked up their first point on the road in the Championship since the opening day victory over Barnsley, as late pressure wasn't enough to edge over the line in a stalemate at the Valley.
Late pressure from substitutes Roger Espinoza, Marc-Antoine Fortune and Callum McManaman couldn't break the Charlton resolves as Latics were made to settle for a point.
Owen Coyle made five changes going into the game as Thomas Rogne, James Perch, James McArthur and James McClean coming into the starting line-up and goalkeeper Lee Nicholls stepping in at the last minute to replace Scott Carson who injured his knee in the warm-up.
The first half was one of very few chances, as the swirling wind made it difficult for both sides to stamp any authority onto the game.
Charlton offered an outpost of Bradley Pritchard on the right side and he was heavily involved, missing the first real chance of the match and he fired well over from the edge of the area after a forceful attack down the left.
Two minutes before half time Latics almost fell behind when a header from a corner forced Nicholls to scoop the ball off his own line through a mass of bodies from both sides as he ensured that nothing would get past him on his league debut for the club.
The second half brightened up for Latics and just before the hour mark Ben Watson struck a thunderous shot wide from the edge of the area.
Minutes later Latics were on the front foot again, but McClean's run down the wing could only end in rippling the side netting as his effort was blocked.
Latics made a trio of substitutes in the second half, with McManaman, Fortune and Espinoza all coming on.
The changes added bite to Latics' attack, but Charlton still held out and offered chances of their own.
With seven minutes remaining it looked like the hosts might have clinched all three points when Pritchard's burst down the right wing ended with a chance for Dale Stephens, but he could only miscue his shot in the box to Latics' relief.
Latics desperately tried to open the deadlock late on and a break away from Fortune down the left gave them three chances, first with the Frenchman having two shots blocked, with the second falling to McManaman who himself saw his effort stifled.
Neither side could open each other up on a day, but Latics continued their unbeaten run in games after the Europa League, adding a draw to their victories over Ipswich Town and Blackburn Rovers.