WeatherTracker provides an easy-to-use interface to the Internet
weather servers.
WeatherTracker displays current information for any of over 1000
cities worldwide in three different formats.

For cities in North America, temperature, barometric pressure, winds,
current conditions, local forecasts, and climatic data are updated
hourly. Coastal cities in the United States also have near shore
marine forecasts available. Cities outside North America are limited
to temperature and conditions, updated several times a day.

Compatibility
Architecture: 68k PPC

It requires a 68020 or higher processor with System 7.0 and MacTCP or
OpenTransport.
Obviously, WeatherTracker requires internet access to obtain current
weather status.