"Weather watchers" refers to the people who observe and pay attention to the weather conditions around them. They keep an eye on the weather changes and can provide updates and information about the current or upcoming weather. Full definition
The specific wind that is going to determine whether I'll have to put on a jacket is one that weather watchers didn't even know existed a century ago. (discovermagazine.com)
Earlier observations were taken officially by the colonial governments, as well as by amateur weather watchers. (bom.gov.au)
I'm a bit of weather watcher by nature, and checking the current weather conditions and forecast across one or more different services (currently Wunderground, Weather Channel, and Forecast) is one of the first things I do every morning. (treehugger.com)