Today could be the mostly sunny calm before tomorrow's storms, according to the National Weather Service.
The daytime high temperature today under bright, humid skies in southwestern Connecticut will rise into the upper-80s, with a south wind 5 to 9 mph.
There could be patchy fog settling in parts of the region overnight, as the temperature dips to the low-70s.
Tomorrow, there is a slight chance of showers and thunderstorms before 10 a.m., with a greater chance of storms after 1 p.m. as a new weather front moves into the region. Some of the storms, the NWS warns in a "hazardous weather outlook," could trigger downpours and strong winds. The day otherwise will be partly sunny, with a high temperature near 85 degrees.
More storms are possible tomorrow night and, again, some could be severe, the NWS warns. The nighttime low temperature will be in the low-70s.
On Monday, there remains a chance of storms, mainly before 1 p.m. Otherwise, skies will be mostly cloudy, with a high temperature in the mid-80s. Nighttime will be partly cloudy, with a low temperature in the mid-60s.
The outlook for Tuesday, the weather service says, is mostly sunny and temperatures in the mid-80s.