It will by sunny and hot most of today, but southwestern Connecticut faces the threat of strong thunderstorms late this afternoon and evening, the National Weather Service warns.

Some of those storms, the NWS says, could trigger heavy rain, strong winds and hail. The storm threat arises after 4 p.m. and remains in effect through most of the night.

Earlier today, skies will be mostly sunny, with a daytime high in the upper-80s. There will be a west wind between 9 and 14 mph.

Besides the possibility of showers and thunderstorms tonight, the temperature will dip to about 70 degrees.

Tomorrow, there is still a chance of showers and thunderstorms mainly before 7 a.m. Otherwise, skies will be mostly sunny, with a high near 84 degrees. Tomorrow night will be partly cloudy, with a low around 69 degrees.

Wednesday will be sunny with a high near 84. There will be a north wind 5 to 10 mph becoming south. The nighttime low temperature will fall to the low-70s.

Thursday will be mostly sunny, with a high near 87, the weather service predicts.