This end-of-summer holiday will put a glum damper on the vacation season's last gasp, with cloudy and humid skies punctuated by periodic showers and thunderstorms, according to the National Weather Service.

After early-morning patchy fog lifts from parts of southwestern Connecticut, Labor Day will remain cloudy, with a 70 percent of precipitation possible and some of the rain could be heavy, the weather service says. The daytime high temperature will be in the low-80s.

Tonight, there is a 60 percent chance of precipitation, with downpours again possible, as the temperature dips to a low in the upper-60s.

As the holiday-shortened work week gets underway tomorrow, there remains a 60 percent chance of precipitation. The high temperature will rise to the low-80s, and skies are expected to gradually begin clearing later in the day.

Tomorrow night will be partly cloudy, with a low temperature in the upper-50s.

Wednesday should be mostly sunny, with a high temperature about 80 degrees. Nighttime will be clear, with a low temperature about 60 degrees.

The outlook for Thursday, according to the weather service, is sunny and 80 degrees.