Updated Friday, 7:40 a.m.

CLARKSVILLE, TN (CLARKSVILLE NOW) – We have a stormy weekend ahead, especially on Saturday.

There’s a slight chance storms will start Friday, with the odds rising to 80% Saturday, according to the National Weather Service. There’s a 40% chance of storms Sunday.

Highs should drop from near 90 to 85.

Clarksville forecast

Here’s the day-by-day outlook.

Today: Mostly sunny, with a high near 89. North wind around 5 mph.

Tonight: A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 69. North northeast wind around 5 mph becoming calm.

Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 87. Light south southwest wind becoming west southwest 5 to 10 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night: Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67. West southwest wind around 5 mph. Chance of precipitation is 60%.

Sunday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 83. West northwest wind 5 to 10 mph.

Sunday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 62. North northwest wind around 5 mph. Chance of precipitation is 20%.