Just found out that wooden window frames can actually crack from temperature changes alone... who knew? Mine's got a pretty noticeable split now. Wondering if anyone's tackled something like this themselves or if it's a pro-only kinda thing.
I've seen this happen a few times, and honestly, it depends on how deep the crack is. If it's just surface-level, some wood filler and sanding might do the trick. But if it's deeper or structural, you might need to reinforce it or even replace that section. Temperature swings can be brutal on wood—had a client whose frame split badly after a harsh winter. Did you notice any drafts or moisture issues before the crack appeared?
Had something similar happen last winter—turned out moisture was sneaking in around the edges. I'd say check carefully for any drafts or damp spots first, then try filler if it's minor. If it's deeper...might wanna brace yourself for a bigger fix.