ST. LOUIS– Another nice day with highs in the mid-80s and sunshine. Clouds will increase this evening into tonight.
A decaying complex of storms will move through overnight into early Saturday morning. Thunderstorms are not expected to be severe but locally heavy rainfall may occur.
Rain and some thunder will continue past daybreak Saturday, dissipating as it continues east. The majority of this rain will hopefully be done by about midday and afternoon temperatures will land in the low 80s. Showers or storms could redevelop by late afternoon or evening.
Where this second round forms depends on the track and timing of tonight’s rain. With these afternoon and evening storms, we could have a few isolated, strong storms capable of large hail and damaging winds.
Rain chances are increasing for overnight Saturday and Sunday morning, especially along and south of I-70. Storms could train and produce a localized flash flooding threat. How far north and how long this rain lingers into Sunday will be determined by how far south our cold front makes it. This would also mean lingering clouds for most of the day on Sunday and highs near 80.
It’ll be a comfortable start to the work week with highs in the upper 70s and sunshine for Monday. Warmer temperatures by late week, with highs returning to near 90.