Flooding is possible as the remnants of Tropical Storm Andrea moves into the Newton area on Friday afternoon.
The National Weather Service issued the flood watch on Thursday afternoon and it runs from Friday afternoon through Saturday morning, meaning there is a potential for flooding based on current forecasts.
The heaviest rain is expected Friday afternoon through Friday night, the weather service said, with a total of two to three inches expected with up to four inches possible.
Top concern is for urban and poor drainage areas, plus near small rivers and streams which could sharply rise in the heavy rain.
The weather service recommends residents monitor weather forecasts and be alert for possible flood warnings. Anyone who lives in an area that is prone to flooding should be prepared to take action if flooding develops.