Navico WM4 Weather Module

The Navico WM4 Weather Module is an essential accessory for serious boaters who demand real-time weather intelligence at the helm. Designed for integration with Simrad, Lowrance, and B&G multifunction displays, this wireless receiver transforms your chartplotter into a comprehensive marine weather station. Whether you're planning a day run or a multi-day offshore passage, having live weather data and forecasting eliminates guesswork and keeps you informed of changing conditions before they impact your safety or fishing success.

The WM4 receiver delivers continuously updated weather information and extended forecasts directly to your compatible display unit via wireless connectivity, ensuring you always have the latest atmospheric and marine data at your fingertips. This compact module weighs just 4 pounds and installs easily aboard any vessel with a Simrad, Lowrance, or B&G navigation system. The receiver decodes weather broadcasts independently, so you gain access to critical information including barometric pressure trends, wind speed and direction, sea state, and multi-day forecasts without relying on cellular or internet connectivity—a vital advantage when operating beyond coastal cell coverage.

Anglers and cruising boaters benefit most from the WM4, as proactive weather monitoring helps predict fish activity, plan safe passage windows, and avoid severe weather cells. The module pairs seamlessly with any compatible Simrad, Lowrance, or B&G multifunction display already installed in your wheelhouse or console. Installation is straightforward—position the antenna with clear sky view and connect the module to your network, allowing your existing display to render weather overlays, forecasts, and alerts across your chart and gauge pages for rapid decision-making on the water.