Woowee what a chilly start to the week! As was mentioned last week, frost is prevalent across the valleys this morning and a lot of locations flirted with sub freezing temps. Don't fret if you didn't see either or those two things happen, everyone will be seeing frost and sub freezing temps this week.
Cool and dry high pressure is centered over the mid-Atlantic today. Lots of sunshine will prevail and temps will rebound from this morning's lows. However, highs will still be seasonably cool. Lows tonight will be warmer than last night and we're not looking at frost again.
Tuesday and Wednesday will see two fronts move through the region. The first passes through tomorrow morning. Afternoon scattered light showers are possible but nothing major.
The second front is a clipper system that will quickly pass through the region very early Wednesday morning. Behind this front is an Arctic airmass that is going to give us our first true taste of winter. It's going to be a very blustery day with temps that will be 15 or so degrees below normal. In addition, light rain is expected to change over to snow Wednesday night. Don't get too excited though, accumulations will be a dusting at best for most folks.
Thursday will see continued cold. Another shot of reinforcing cold air arrives at night and will bring about more snow showers and flurries. Yet again though, we're looking at a dusting at best for most people with an inch possible at the higher elevations near the NC/TN border.
Friday through Sunday will see temperatures bumped up a few degrees each day. It's still going to be chilly though and overnight lows will produce a frost and/or freeze. At least it'll be sunny