Today's cold front passed WXLIVE! in Bartlett at 9:00am with a wind shift and quick drop in temperatures and dewpoints. See the graphs below and notice the change at 9am. Temperatures have dropped from 62.5 at 9am to 45 at 11:30am. Expect a continued decline, though much slower, in temperatures the rest of the day. Tonight's low will be near freezing. Most of the rain is done, though drizzle and mist could continue for a good part of the day. The frontal position was also very obvious in the temperature map of the Lower Mississippi Valley taken at 6am. See the image below showing temps in the lower 60s in the MS Delta and near freezing as close as northwest AR.
Frontal position at 6am Saturday