MARION (AP) — Firefighters are hoping rain will help them fight a wildfire in the Pisgah National Forest in the North Carolina mountains.

The U.S. Forest Service said Monday that humidity kept the fire in McDowell County north of Marion from spreading much over the weekend. The blaze is currently estimated at 1.5 square miles.

The Bald Knob fire was reported July 17 in a remote area north of Lake James and was likely sparked by lightning. The rough terrain and flammable underbrush has made it hard to put out the fire and keep firefighters safe.

Forecasters predict rain for Monday and Tuesday over the fire, then say dry weather should return Wednesday.

The humidity and rain has improved air quality in the area.