The answer to 'stink bug season' is that stink bugs are typically active from late spring through early fall, with peak activity occurring in the late summer and early fall months. Stink bugs become more noticeable as they start to congregate and seek shelter indoors as the weather cools down in the fall.
Stink bugs are attracted to warm, sheltered areas and often find their way into homes through cracks and crevices. During the spring and summer, they feed on plants and crops, but in the fall, they start to look for places to overwinter, leading to increased sightings inside homes and other buildings.