Below are two links which will provide current weather conditions for Gallatin. The National Weather Service is the official U.S. Government site. We include WeatherUnderground because we think their local radar is easier to interpret.
You will also find a host of weather-related information at the National Weather Service's web site at: www.nws.noaa.gov
Tennessee Historical Data
Meteorologist Mark A. Rose of the National Weather Service in Old Hickory, Tennessee, has provided two links to historical Tennessee weather information. The data covers temperature extremes for 50 cities around Tennessee as well as a lot of other information.