The weather forecast is perfect for a day at the beach this July 4th. But more than 20 lakes and ponds are closed for swimming across Massachusetts on Friday. The closures are mostly due to high levels of bacteria in the water.

Going into the Fourth of July weekend, over two dozen Massachusetts beaches are closed, most due to unsafe bacteria levels.

After the heat wave in Massachusetts this week, you may be in the mood to spend a day at the beach this weekend. However, if you're planning a weekend beach trip, you'll want to avoid the beaches closed due to unsafe swimming water.