I knew you'd say something like that...
Weather.com is a TV channel. They are EXCELLENT at telling you what your current temperature is, and PERFECT at telling you whether it's raining outside. And the thing they're best at is to give you pretty video with someone hanging on to a utility pole in a hurricane. But in the end they're an "ok" macro-weather forecasting agency that spends most of its time trying to entertain you.
My preferred consumer-level weather service - if you don't want to get into the nitty gritty data yourself - is accuweather. Not perfect, but the models they use tend to be, in general, better in longer-range forecasting.
But in the end, micro-weather forecasting is a wizardry art, especially more than 24 hours out.
If you have any interest in being a weather geek, Weather Underground is a good place to start. I think the place is RUN by weather geeks. And if you want to participate in the "RRAX of Weather" try americanwx.com; try to participate in the northeast forum when we have a snowstorm coming and the posts are flying so fast you simply can't keep up...
Regardless, forecasting weather a week out is folly. At best you can look at the forecasts of the macro-weather (fronts, air masses, highs/lows, etc) and use computer models (I like GFS) of what those will do. Watch the trends as the days progress and use judgement to make predictions based on what's happening.
When I'm not interested in delving deep into the models I'll jump to Accuweather, look at their extended forecast for the day(s) in question, and then look at two days prior and subsequent. What you see within that 5-6 day window is a general idea of what to expect. But don't bet on it. Two days out it's pretty accurate, but not a week or more.
We're in a transition period here in the NE. You've seen this week's weather in the middle of the country, but those aren't making them up here simply because the air masses are breaking up before they get here. We've got another not-as-powerful front moving across mid-week that should break up, but these are getting closer and closer to us each time. The one we're seeing next weekend is powerful enough to make it here...the question is whether it will get delayed in the Midwest again; if it does then we're good for Sunday and we'll get hammered with rain Monday; if not then we'll see rain on Sunday.
GFS is about 50/50 on when that front will make it through. It's showing rain with thunderstorms for the latter part of next weekend/Sunday in to Monday, with that low sticking around off shore for a day or two. Once that "seal is broken" we'll see more air masses make it through more easily.
I'm trying to decide what tires to put on the car before I put it into the trailer today. Unless something changes with today's forecast I'm going with dry tires to bed them in during the Friday test day, I'm waffling for Saturday, but I'm making sure my rain tires are in good shape for Sunday, just in case...
GA
