The first two days of the long Memorial Day weekend in southwestern Connecticut promise to be the spottiest, but the outlook brightens considerably by the time the holiday rolls around Monday.

After the early-morning fog burns off, the National Weather Services says there is a chance for isolated showers and thunderstorms today after 1 p.m. Otherwise, it should be partly sunny, with a high temperature near 80 degrees.

Tonight, isolated showers and thunderstorms are again possible and, as has been the case many days over the last few weeks, fog will likely move in overnight. The low temperature will be about 62.

Saturday's forecast is pretty much like today's: Isolated showers and thunderstorms possible after 1 p.m., but partly sunny otherwise. The high temperature will be in the upper-70s, with a south wind between 7 and 10 mph. The NWS says Saturday night should be mostly cloudy, with a low around 61.

Sunday will be partly sunny, with a high near 72 degrees. Overnight will be mostly cloudy, with a low around 64 degrees.

On Monday -- Memorial Day -- skies will be partly sunny, with a high near 78 degrees, according to the weather service.