The big Fourth of July week is here and the weather looks good most of the time, with just a few changes from time to time. Another bright and pleasantly warm day is in store with afternoon highs around 27 degrees and low humidity. An afternoon sea breeze will keep temperatures a bit cooler just off the coast. The next chance of showers and thunder will be later Wednesday night into early Thursday. Lows will be milder at night, topping out at 15 degrees. Any early showers on Thursday should quickly disappear, giving way to a mix of sun and clouds for the rest of July Fourth. Humidity will be higher and there is a very slight chance of a late-day thunderstorm, especially over southern New Hampshire. Thursday night will be muggy and mostly rain and storm free for the fireworks displays, and it will stay mild and humid overnight. Friday will be very warm and quite humid with highs around 32 degrees in places. Although it will remain mostly dry, we cannot rule out isolated showers or thunderstorms. The greatest chance of isolated showers and thunderstorms between now and Sunday will be on Saturday.