freeze warnings have been posted for most of massacusetts besides for boston,southshore coastline,cape and islands where an advisory have been posted.
in general the temperatures will be on the rise through the week with highs being in the 60s with low 70s by friday. there will be areas of showers on tuesday with highs in the upper 50s
the lack of clear nights this upcoming week will allow any heat from the sun that comes in durring the day will mainly stay which will help in the long run. I also do not think any one day will be a wash out but just cloudy there will be times that the sun does come out.
lows will be in the 40s rising almost each day until friday night when lows will be inthe low to middle 50s.
next weekend also looks cloudy but dry.
Merrimack valley weather 
monday though will be sunny with highs inthe low 60s