CLARKSVILLE, TN (CLARKSVILLE NOW) – This week is expected to start and end with storms with a break in the middle.

Daytime temperatures range from the lower to mid 90s with a heat index as high as 100.

Showers and thunderstorms are expected Sunday night, with more on the way Wednesday through Friday.

Clarksville forecast

Here’s the day-by-day outlook:

Tonight: Partly cloudy with highs around 90 and heat index values as high as 99. There is a 30 percent chance of showers and thunderstorms.

Monday: Mostly sunny with highs in the lower 90s and heat indexes as high as 100.

Monday Night: Mostly clear with lows in the low 70s.

Tuesday: Sunny with highs in the lower 90s.

Tuesday night: Mostly clear with lows in the lower 70s.

Wednesday: Sunny with highs in the mid 90s. There is a 30 percent chance of showers and thunderstorms after 2 p.m.

Wednesday night: Mostly clear with lows in the lower 70s. There is a 30 percent chance of showers and thunderstorms before 8 p.m.

Thursday: Mostly sunny with highs in the lower 90s. There is a 30 percent chance of showers and thunderstorms.

Thursday night: Mostly sunny with highs in the lower 90s. There is a 30 percent chance of showers and thunderstorms

Friday: Mostly sunny with highs in the lower 90s. There is a 30 percent chance of showers and thunderstorms.

Friday night: Mostly cloudy with lows around 70 and a 30 percent chance of showers and thunderstorms, mainly after 1 p.m.

Saturday: Sunny with highs in the lower 90s. There is a 30 percent chance of showers and thunderstorms.