Cold air has a grip on the region and will stay with us at least through the remainder of the work week. Gusty winds will add to the discomfort and drive wind chills to sub zero levels at night. This is easily the coldest air mass of the season and probably the coldest in two years. The National Weather Service has issued a Wind Chill Advisory for most of the area as overnight wind chills will dip below zero to perhaps as low as 10 below tonight.
Partly cloudy skies and bitterly cold tonight. Although the thermometer will drop to near zero to 5 above, those gusty winds do bring wind chill values to about 10 below zero at times.
A north to south ridge of high pressure, extending from southern Canada to the Gulf Coast, will expand into southern New England by Wednesday and remain with us into early Friday. This will keep us generally fair and dry. Although an upper level disturbance will swing out of the Great Lakes it is expected to dive to our south at night and early Thursday. Expect high temperatures only in the mid teens Wednesday and Thursday. Gusty winds to 25 mph or higher can be expected both days. Overnight lows around zero, with wind chills as low as 15 below.
Our attention will turn to low pressure moving out of the lower Ohio Valley on Friday, which will reach the coast by Saturday morning. Snow may break out late Friday or Friday night and continue into early Saturday. It remains early for any specifics on storm impacts. Once the storm departs it will be followed by another shot of real cold air for the second half of the upcoming weekend. Highs on Friday will nudge back into the low 20s. Saturdays highs in the low to mid 20s. The lows Friday night range from 12 to 18 degrees. Saturday night looks to be partly cloudy and turning colder, with temperatures dipping to around 5 degrees.
Highs on Sunday recover to near 20 degrees, under mostly to partly sunny skies.