An Indian summer is a period of unseasonably warm, dry weather that sometimes occurs in autumn in temperate regions of the northern hemisphere. Several sources describe a true Indian summer as not occurring until after the first frost, or more specifically the first "killing frost".
An Indian summer day in Fageda d'en Jordà, a beech forest located in Garrotxa county, Catalonia.
An Indian summer day in western Massachusetts, October 2008
Józef Chełmoński: Indian Summer, Oil-on-canvas, 1875, Dimensions 119.7 cm × 156.5 cm (47.1 in × 61.6 in), National Museum, Warsaw
Indian Summer is an 1875 oil painting by Polish Realist painter Józef Chełmoński. It is considered one of the artist's most acclaimed works and is currently displayed at the National Museum in Warsaw, Poland.
Indian Summer (painting)