^^^for big gaps
^^^for the little gaps
90 Ft. Mortite Rope Caulk
Model # B2
Store SKU # 382841
$5.17/EA-Each
Mortite is the original name in do-it-yourself caulking; and it's still famous for quality & versatility. Mortite Weatherstrip and Caulking Cord will seal windows effectively. But it's also widely used as a gasketing material, sound deadener, insect barrier, crack filler and all around plugger-upper.
* Rope Caulk
* Special Project
* Use to fill cracks around windows or doors
* Fills up to 1/4" Gap
But I do recall seeing a specific temporary rope caulk that was for seasonal use. but this would do the same.