Cooler air is beginning to blow into the area early this morning from the north behind a weak overnight cold front. Isolated showers developed along the front but as of 3 am the area was rain-free. Air temps at 3 am ranged from about 60 in the north to near 70 in the south...but temps will likely continue to slowly fall through about 9 or 10 o'clock as northerly breezes continue and skies remain mostly cloudy...so light jackets a good bet this morning. There is also a chance of a few more showers developing this morning in our southern counties...especially from the Missouri Bootheel into Northwest Tennessee as a little lift remains behind the surface cold front this morning.
By afternoon we'll be clearing out and becoming sunny....but it will remain cooler with late afternoon highs ranging from the M60s north near Farmington and Mt.Vernon to the L70s south near Kennett and Union City. Dew points will be falling as well back into the dry upper 40s to low 50s by later today.
Tonight looks to be clear and quite cool...with daybreak lows in the M40s to L50s. Patchy fall-like dense fog is possible later tonight and tomorrow morning as well as winds go mainly calm.
Interesting scenario tomorrow as models show, to varying degrees, a weak upper system moving from northwest to southeast over the Heartland. Stayed with partly cloudy skies but added at least a slight chance of a passing shower....though this is by no means a sure thing as models have a terrible time with such small features, especially 48 hours out. Otherwise it will continue comfortably mild on Wednesday.
The remainder of the week after Wednesday will feature mostly sunny skies and warming temps as an upper ridge builds over the region. Highs by Friday and Saturday will be back above 80...with overnight lows warming as well. The next significant weather feature of note is a sharp upper trough and cold front still progged to move through on Sunday. If this verifies looks like a period of showers/T'storms possible....followed by dry and slightly cooler weather again by Sunday night and into early next week.
9/16 4:00 am ba