Below are some links that may be interesting and/or useful to you when booking your trip.
Department of Environmental Conservation
New York State Saltwater Fishing Regulations
NOAA National Weather Service
National Oceanic and Atmospheric Administration's National Weather Service
The Weather Channel
National and Local Weather Forecast, Hurricane, Radar and Report
Nor'east Saltwater
Saltwater & Offshore Fishing Magazine for Salt Water Fishing and Fisherman Interests
Montauk Chamber of Commerce
Website featuring local history, information, events, attractions and business directories for Montauk, NY