Windshield Weatherstripping

In the summer my weatherstripping on the windshield keeps coming of while driving on the highway and flapping against the roof. Is there anyway to keep this from happening. By the way the weatherstipping appears to be in great condition and this only happens in summer. Any help appreciated. Thanks.

In the summer my weatherstripping on the windshield keeps coming of while driving on the highway and flapping against the roof. Is there anyway to keep this from happening. By the way the weatherstipping appears to be in great condition and this only happens in summer. Any help appreciated. Thanks.
G, I am surprised you did not get a response on this...I am not sure this is the best way but only what I would try....clean both surfaces with isopropyl alcohol (rubbing) then use a small amount of silicone sealer.