As temperatures rise and the weather shifts, pest control experts are issuing a serious warning across the country: keep your windows tightly closed — both day and night — for the next four weeks. The reason? A sudden surge in aggressive spiders entering homes in search of warmth, food, and nesting spots.

According to entomologists, this seasonal invasion is linked to mating behavior and environmental changes that drive certain spider species — including the false widow, one of the most venomous in the region — into human spaces. These spiders are known to sneak in through small window gaps, vents, and open doors, particularly at dusk when they’re most active.

“They’re not looking to attack people,” one pest control specialist explained. “But they’re searching for dark, quiet corners — and homes with open windows are perfect for that. Once they get inside, they can settle in places you least expect: behind curtains, in clothing piles, or under furniture.”

What’s even more concerning is the increasing number of bite reports over the last few days. While most are mild, some have resulted in painful swelling, allergic reactions, and even hospital visits. Experts stress that prevention is key right now.

To protect your home, specialists recommend keeping all windows and vents sealed at night, checking behind furniture, and shaking out clothes or shoes before wearing them. You can also place peppermint oil or citrus near window sills — natural repellents that spiders dislike.

The warning is temporary, but crucial. As one expert put it, “If people stay cautious for the next few weeks, we can avoid an unnecessary wave of bites and infestations. Once the temperature stabilizes, the risk drops significantly.”

So before you crack a window tonight, remember: it’s not just the breeze that might come in.