Satellite- radar shows winter storm in Great Lakes which is bringing snow to Minnesota & Wisconsin. That system will bring heavy rain and wind to Mid Atlantic and Northeast Sunday and Monday. Many places will get 1-3" of rain....coastal New England could see winds over 50 mph. Below...animate maps for next couple of days.
Below - predictions of rainfall over the next 7 days.
Below - Atlantic basin - disturbance south of Cuba gets entrained with storm in Great Lakes giving the potential for heavy rain in Northeast .