National Weather Service United States Department of Commerce

Partly Cloudy and Pleasant Today

Mostly sunny skies this morning will give way to partly sunny skies this afternoon. High temperatures will top out in the lower to middle 70s in most areas. A cold front will approach from the west tonight and move through the region on Wednesday. Showers and a few thunderstorms are expected overnight and Wednesday. Read More >


Welcome to the NWS Grand Rapids Cooperative Observer website!
These pages were designed to highlight the important contributions of our cooperative observers and to provide access to the COOP data, and other sources of weather and climate data.

Weather data comes from a wide variety of sources, including satellite, remote sensors, radars, automated observing stations, and volunteer cooperative observers. Each and every day, a wide spectrum of users access these weather data to solve problems and plan their lives. Whether it is a farmer in Michigan, a climate scientist in Europe, or a weather enthusiast in New York, the weather data that our cooperative observers collect has a profound impact on society.

These pages were designed to help our customers access COOP and other sources of data, describe the uses of data, explain how to become an observer, and acknowledge our award winning COOP observers.

 Additional NWS Cooperative Observer Program Links: