The warm -- even cool -- weather of the last several days in southwestern Connecticut gives way to a sudden return of summer-like temperatures over the next few days.

With a 20 percent chance of precipitation, today's daytime high temperature is expected to rise to the low-80s under partly cloudy skies, according to the National Weather Service.

Patchy fog will settle over the region tonight as the temperature dips to the low-60s, with a southwest wind 5 to 7 mph.

Tomorrow there remains a 20 percent of showers and thunderstorms, mainly in the afternoon, as the temperature surges to a high of about 90 degrees under mostly sunny skies. Nighttime skies will be partly cloudy, with the temperature dipping to a low of about 70 degrees.

On Thursday, there is a 60 percent of showers and thunderstorms, mainly after 2 p.m. -- some of the storms could produce gusty winds and heavy rain, the NWS warns. Otherwise, it should be partly sunny, with a high temperature in the mid-80s. There remains a 60 percent chance of showers and thunderstorms Thursday night as the temperature dips to the low-60s.

The unsettled conditions are expected to clear out Friday, as the temperatures rise to a high only of about 70 degrees under partly sunny skies. Nighttime will be partly cloudy, with a low temperature dipping to the upper-40s.

The outlook for Saturday, according to the weather service, is sunny and temperatures in the 60s.