OTTUMWA, Iowa (KYOU) -We had a stormy day across Southern Iowa and Northern Missouri with temperatures a bit cooler due to the clouds and rain, in the 70s and 80s. Overnight, lows will cool into the low 70s with another chance for late night showers and storms. Storms will likely linger into Wednesday morning. Storms could become strong to severe with damaging wind as the main threat. However, isolated large hail and isolated tornadoes are also possible.