 This marine weather forecast is brought to you by North Bay Marina, online at northbaymarina.com. Here's the marine forecast from the Talk of Delmarva Weather Center. Scattered thunderstorms tonight with 1 to 3 nautical miles of visibility. Southwest winds up to 20 knots and seas of 3 to 4 feet. Wednesday, southwest winds of 10 to 20 knots and seas of 3 to 4 feet. At Rehoboth Beach, low tide at 1057 P.M.,