Rain is in the forecast for southwestern Connecticut today and every day until late next week, according to the National Weather Service.

This blanket of heavy moisture is slowly moving across the Eastern Seaboard from the Ohio Valley, triggering "widespread" rainfall off and on throughout the Northeast, the NWS says. As a result of all the precipitation, the NWS warns there is a threat of flooding, particularly because many steams and rivers in the region are already near or over capacity from earlier precipitation.

Today will be cloudy, with the odds of precipitation increasing to more than 40 percent after 1 p.m., the NWS says. Patchy fog will not dissipate in some areas until midday. The daytime high temperature will rise to about 74 degrees, with a southwest wind between 3 and 6 mph.

Showers are also possible tonight, as fog develops again and the temperature dips to the mid-60s.

Tomorrow, there is a 50 percent chance of showers, as well as thunderstorms after noon. Some of the storms could produce heavy rainfall, the NWS warns. It will be cloudy, with temperatures in the mid-70s. More showers and patchy fog are in the forecast tomorrow night, with temperatures in the mid-60s.

Monday, the forecast is largely the same: showers, with a chance of thunderstorms, after noon. It will be cloudy, with a high near 77 and a northeast wind 5 to 7 mph, becoming south. Monday night there is a chance of showers, with patchy fog and clouds.

On Tuesday, there is a 50 percent chance of showers, the weather predicts. Skies will be mostly cloudy, with a high temperature near 72 degrees.