Nashville weather forecast might sway your weekend plans if you’re not a fan of rain. According to the National Weather Service in Nashville, there’s a 30 percent chance of showers and thunderstorms overnight. It’s currently overcast, sitting at a comfortable 62 degrees Fahrenheit, but keep a jacket handy as the humidity is high at 78 percent and south winds are reaching 7 mph with gusts occasionally bumping that up to 20 mph.