Spiders seek warm places to live during the cold winter months in Wisconsin – making our homes perfect places to invade. Spiders will enter homes through cracks in door frames and windows. They can also be brought in from potted plants and other items.
Most spiders in Wisconsin are harmless, leaving no more than small bite marks, and as such are primarily a nuisance. However, two spiders in Wisconsin are venomous – the brown recluse spider and the black widow spider. Luckily, these spiders are rare in Wisconsin.