When you buy through links on our articles, Future and its syndication partners may earn a commission. Summer is here, and it's shaping up to be a scorcher. According to the Farmers' Almanac's summer 2026 forecast, most regions in the United States can expect the hottest temperatures in recorded history. The Almanac predicts a warm, hot, and muggy summer for most of the nation, except the Upper Midwest and Heartland, where more seasonable summer temperatures are expected.