Metro Boston, north shore and western suburbs: Temperatures have gradually improved over the last couple of days but it still has remained below normal. Today was an improvement over Wednesday as temperatures climbed to the mid 20s to 30 degrees in the afternoon. It was not as windy either with plenty of sunshine so overall a fairly nice early January day.
Before we get the much warmer temperatures advertised for this weekend we will go through a period of unsettled weather on Friday. A disturbance in the upper levels is going to move across the region Friday bringing cloudy skies and a chance for snow showers. We could see a coating of snow to perhaps an inch but overall this is no big deal. Secondary roads could become slippery for a while through the morning hours. Most of the precipitation is done by mid afternoon. We could even see a bit of rain or drizzle mix in before the precipitation ends. This system will move out of here very quickly and there may be some partial clearing in the evening.
However, another system approaches for Saturday and this time around we will see heavier amounts of precipitation, in the form of rain, as those milder temperatures kick in. Low pressure will move out of the eastern Rockies Friday and move across the Plains to be centered over Lake Superior Saturday morning. Meanwhile, another low will develop in the mid Atlantic moving south of New England Saturday night. A strong southerly flow is going to develop during Saturday and Saturday night with showers developing early in the day and becoming a steadier rain in the afternoon into the overnight. Locally heavy downpours can be expected with the timing of these probably late afternoon through to near midnight. Overall, a widespread 1 inch rainfall is expected, locally heavier amounts are probable with a few 1.5 to 2 inch totals not out of the question, especially in those locations that get the downpours.
The attendant cold front will approach Saturday night and move across the local area by Sunday morning. The air mass behind this front is not particularly cold, therefore another mild day is on tap for Sunday with partly sunny skies.
Early next week stays on the mild side with fair skies Monday and then a chance of more rain showers Tuesday.
If you are attending the Patriots game Saturday night be prepared for wet conditions with gusty winds. There could be some downpours at times. Temperatures in the upper 40s.
72 Hour Outlook:
Tonight: Increasing clouds. Cold, low temperatures in the mid to upper teens. Winds near calm.
Friday: Cloudy, periods of snow showers through the morning, possibly mixing with rain or drizzle in the afternoon. Highs in the low to mid 30s. Light south to southwest winds.
Friday night: Partly cloudy early, becoming mostly cloudy after midnight. Not as cold as temperatures remain fairly steady in the low 30s. Light south winds.
Saturday: Areas of fog, possibly some morning drizzle, then showers break out with a steady rain later in the day. Milder, highs into the low 50s. Becoming windy in the afternoon as south winds gust to near 30 mph by evening.
Saturday night: Rain, locally heavy downpours possible with gusty winds. Mild, lows in the mid to upper 40s. South winds may gust to 35 mph at times.
Sunday: Early clouds, perhaps a leftover shower, followed by partial clearing and pleasant. Highs in the upper 40s.
Sunday night: Partly cloudy. Cooler, lows in the low to mid 30s.