Clouds will thicken as a warm front approaches from the southwest. A band of wintry precipitation will run ahead of the frontal boundary with snow breaking out mid to late afternoon. This will have an impact on the evening commute home as the snow continues and becomes mixed with sleet and freezing rain as a warm layer of air aloft runs ahead of the surface front. Expect the mixed bag of precipitation to continue most of the overnight and coming to an end as either freezing drizzle inland or drizzle along the coast. Total snow accumulations of 1 to 2 inches are probable, with a few 3 inch totals along and west of Route 495 possible.
The warm front stalls across southern New England Tuesday as a weak disturbance slides across the boundary and off the coast during the day. The position of the front will be critical to area temperatures. Another round of light precipitation is possible as the wave moves through. Most likely we will have a few showers as temperatures will be too mild for any frozen precipitation. Showers may linger into Tuesday night as temperatures are expected to remain above freezing, although don’t be surprised if sleet mixes in well inland.
The warm front will finally lift northward by early Wednesday. However, a cold front will push through here later Wednesday night or early Thursday. In between the two fronts it will become windy and very mild on Wednesday, with numerous showers or steady rain likely into Wednesday night. It is possible that some of the rain could be locally heavy at times.
Once the cold front clears the coast on Thursday morning the skies will partially clear and the door is open once again for colder air to overspread the region during Thursday and Friday. It should remain dry both days.
Five Day Forecast:
Monday: Thickening clouds this morning, with cloudy skies and light snow developing this afternoon. High temperatures in the lower 30s. Light winds of 5 mph or less.
Monday night: Snow, mixing with sleet and freezing rain. Mixed precipitation will taper to mostly freezing drizzle later at night. Near steady temperatures hovering near 30 degrees. Light winds continue.
Tuesday: Mostly cloudy, with early showers possible and a risk of a period of sleet and freezing drizzle well inland. Additional showers possible in the afternoon. Early morning temperatures in the low 30s will gradually climb to the upper 30s.
Tuesday night: Periods of showers, with the possibility of sleet mixed in well inland. Lows in the mid 30s.
Wednesday and Wednesday night: Becoming very mild and windy. Showers or a period of steady rain likely into the overnight. Highs in the mid 50s. Overnight lows near 40 by morning.
Thursday and Friday: Generally partly cloudy skies and turning colder. Highs on Thursday in the mid 40s, cooling to the low or mid 30s Friday. Nighttime lows in the mid to upper 20s Thursday night, dipping to near 20 well inland to the mid 20s on the coast for Friday night.