Marion County has extended its burn ban through Friday, Marion County Fire District 1 chief Kyle McMann said Tuesday. The ban, which has been in place for a week, covers all outdoor burning such as recreational fires. Salem’s burn ban also runs through Friday. Polk County’s burn ban runs through Sunday. Forecasted highs are in the 70s through Friday with slight winds, though rain is predicted for Saturday and into next week. National Weather Service officials also issued a red flag warning across the majority of northwest Oregon last Friday due to the potential for rapidly spreading fire amid hot, dry and windy conditions.