Not all windows have weep holes. They're typically only featured on windows made of vinyl, fiberglass, or metal because the frame construction includes hollow spaces where water can get trapped.

2 A man has shared a hack to "winter-proof" your windows, just by adjusting a secret button in the window frame Credit: Instagram/@simplecreative2023 2 ...

However, winterizing windows is much easier to do when you're working around blinds. Painting the window frame. Trying to paint a window frame around your blinds is a recipe for disaster.