Showers and thunderstorms will track from north to south through the Tennessee Valley Friday evening. The heaviest and strongest storms have cleared south of the Valley, but periods of rain are still possible through the evening. Storms can bring a quick half-inch to an inch of rain. Any stronger storms can produce 30-40 mph winds and frequent cloud-to-ground lightning. Dry spots will become more common through the evening.
The overall dry will last through around midday Saturday. Areas of rain with thunderstorms mixed in will grow increasingly likely Saturday starting between noon and 2 PM. Expect rainy areas to continue through about 8 PM before the rain breaks for the night. Some heavier thunderstorms can bring a half-inch to an inch of rain in less than an hour. A couple of storms can bring 30-40 mph wind gusts and frequent lightning.
Spotty showers or thunderstorms are possible Sunday through Tuesday, but an overall drying trend will happen next week. Drying will come with warming, and temperatures will climb through the 90s. Heat indices can climb into the triple digits by the end of the week.