AUGUSTA — Heavy rain ended in the area Sunday afternoon, but with occasional rain expected to last through Monday, much of Maine was placed under flood watch.

Downtown areas in Augusta, Gardiner and Hallowell weren’t threatened immediately by water Sunday, even after the National Weather Service issued a flood warning for the area that expired in the afternoon.

That was downgraded to a watch before 5 p.m., which affected most of Maine’s southern half and parts of New Hampshire, including Kennebec County. Two inches of rain were expected to fall across the area Sunday, with up to an inch more expected through Monday.

Combined with runoff and melting snow, minor flooding could occur around rivers and streams, with ice jams possible in rivers, the weather service said.

However, no flooding was forecast for the Kennebec River at points in Sidney and Augusta as of just after 5 p.m. Sunday, according to the Northeast River Forecast Center.

On Sunday morning, Richard Beausoleil, director of the Kennebec County Emergency Management Agency, said the greatest potential for flooding would occur Monday, after more runoff hits the river.

“We’re just keeping an eye on things,” Beausoleil said.

Michael Shepherd — 370-7652 mshepherd@centralmaine.com Twitter: @mikeshepherdme