The main weather story this week will be the cold air that is moving across the country and makes a return visit here later Thursday or Friday. The mild air will be on the way out giving way to cooler air and finally the much colder air arrives by weeks end. There is a significant amount of bitter cold air in Canada but how much of it leaks into southern New England still remains uncertain. However, folks out west are already in the grips of the bitter cold, with many sub zero temperatures through the Intermountain West and Plains States. The cold has plunged all the way into the Southwest as evidenced by readings in the 20s around Phoenix and teens in and around Albuquerque.
Taking a closer look at the local short term weather for early this week we can expect the transition to cooler temperatures to begin behind a cold front that moves through Monday morning. A few showers will accompany the frontal passage and then we expect temperatures to fall through the afternoon and take a good tumble Monday night. Highs in the low 50s occur in the morning, with lows dipping into the 20s overnight.
As the front sags to our south it will slow a bit and low pressure is expected to form along the front. The low is currently forecast to move to our south and should not bring us any precipitation. However, clouds will return later Tuesday and Wednesday as the low sneaks out to sea underneath New England, with the precipitation shield remaining offshore or perhaps skirting Cape Cod.
Although another low will track south of New England later Wednesday we should remain under the influence of high pressure mid week. A strong cold front will approach Thursday and is now timed to cross the region late Thursday or Thursday night. Behind this front will be much colder air that will give us a cold and windy end to the work week on Friday. A few snow showers may accompany the passage of this front.
Five Day Forecast:
Monday: A few morning showers possible, followed by partial clearing for the afternoon. High temperatures in the low 50s early, will fall through the 40s during the afternoon. Winds becoming west to northwest and gusting to around 25 mph in the afternoon.
Monday night: Partly cloudy and much cooler. Lows in the mid 20s inland to near 30 degrees on the coast. Northwest winds diminishing to 10 mph or less.
Tuesday: Partly cloudy and cool. Highs near 40 degrees. Light northwest winds.
Tuesday night through Wednesday night: Partly to mostly cloudy. Lows in the mid 20s inland to near 30 on the coast. Highs Wednesday around 40.
Thursday: Partly cloudy. Highs in the low 40s.
Thursday night: Chance of an evening flurry or snow shower. Windy and turning colder. Lows near 20 inland to 25 on the coast.
Friday and Friday night: Generally partly cloudy, windy and colder. Highs around 30, with overnight lows in the low 20s.