The Labor Day holiday weekend is likely to end on a wet note -- a very wet note, according to the National Weather Service.

Most of the holiday will be cloudy, the NWS says, with a high temperature in the upper-70s.

Overnight, heavy rain is forecast in a "hazardous weather outlook" the NWS has extended into the early-morning hours of tomorrow. There could be thunderstorms in addition to downpours as the temperature dips to the mid-60s.

Tomorrow, the work week starts with stormy conditions, the NWS says. There will be more showers -- and possible thunderstorms -- with temperatures reach a high in the upper-70s. More rain is possible tomorrow night with tempertaures dipping to the upper-60s.

On Wednesday, more unsettled weather is possible, and some of the rain could again be heavy. The daytime temperature is expected to be in the low-80s. Nighttime could also see some rainfall as temperatures decline to the upper-60s.

Thursday should break the storm cycle with mostly sunny skies and a high temperature in the mid-80s. Thursday night will likely be partly cloudy, with a low temperature in the mid-60s.

The outlook for Friday, the weather service predicts, is mostly sunny and temperatures in the low-80s.