A very cold night is on tap tonight as high pressure settles in across the area, bringing winds down but also helping to create ideal radiational cooling conditions that will send lows to the low 20s across much of the metro by Friday morning, with 20s even reaching the beaches. Further inland, we could see temperatures dip into the upper teens. A Cold Weather Advisory is in effect for Berkeley and Dorchester counties where the most chilly conditions are expected. This’ll be pipe-busting cold so make sure you’ve got a faucet dripping, plants are covered, pets are inside and warm, and the vulnerable people in your life are accounted for and safe.

A cold front will come through early Thursday, ushering in another round of very cold and dry air to the area which may elevate fire danger during the day. We’ll start the day in the mid-to-upper 30s with a few clouds around. Those clouds will largely scour out as the drier air punches in, and it will punch in — expect winds around 10-15 MPH with higher gusts at times. The influx of cold air will limit highs to the upper 40s despite full sunshine, and with the wind, it’ll feel even cooler than that. This will lead to a hard freeze overnight Thursday into Friday morning, so you’ll want to make sure that pets, plants, pipes, and people are protected as temperatures plummet into the low 20s by Friday morning.

Another big cooldown is in store as we get beyond Hump Day and head into the second half of the work week. First, though, we’ll have a relatively seasonally-appropriate Wednesday, with highs topping out in the upper 50s to around 60° after a low around 40°. There will be a bit more in the way of cloud cover, with a chance for a few showers in the afternoon as low pressure moves northward out of the Bahamas, spreading a little moisture our way. Don’t expect much in the way of any meaningful rainfall, though, if you see any at all.

We’ll get off to another rather chilly start on Tuesday, with sheltered and rural locations headed below freezing and the metro getting awfully close (if not tipping below 32°F, too). At least the wind won’t be a factor — maybe a very light breeze, but that’s about it. Temperatures will then warm to around 60° in the afternoon, which if realized would be right on the nose for what climatology considers “normal” for January 13. Expect plenty of sunshine with just a few clouds.

This week will have a much different (and more seasonally-appropriate) feel than last week did as multiple shots of cold air are queued up for our neck of the woods.