The 2018 wildfire season in Montana began around June, 2018 and ended around September, 2018.

[1] The Highway 37 Fire is a fire above Montana Highway 37 west of Libby, Montana at 48°25′19″N 115°28′26″W / 48.422°N 115.474°W / 48.422; -115.474 (Highway 37 Fire),[2] near a Superfund site which is a former vermiculite mine.

[3] Firefighters needed to wear respirators to protect themselves from exposure to asbestos mixed with duff and bark by mining operations and mobilized by the fire.

[4] The Reynolds Lake Fire, caused by lightning on July 17, straddles the Bitterroot National Forest and Salmon-Challis National Forest southwest of Darby, Montana at 45°33′50″N 114°30′47″W / 45.564°N 114.513°W / 45.564; -114.513 (Reynolds Lake Fire).

[5] It reached over 1,000 acres (400 ha) in extent by July 22.