St. Louis High for Friday 88, Low 71, Precip. -0-….St. Louis Forecast for Tonight: decreasing clouds & mild, Low 69. Saturday: partly cloudy and hot, stray t-shower possible in the afternoon, Wind SW 5-10, Sun Index 8, High 93, Low 71. Complete forecast & graphics on Channel 11 at Noon, 4pm, 7pm, and FB & Twitter at John Fuller on KPLR.