Connecticut Faces Cooler Weather, First Alert Issued for Sunday Rain and Potential Flooding

Hartford & New Haven, CT, September 19, 2026 —

Residents in Hartford and New Haven can anticipate a day of cooler, predominantly sunny conditions. This respite from warmer temperatures is expected to conclude as the weather pattern shifts towards unsettled conditions for Sunday.

Sunday is forecast to bring rain to the region, with the potential for isolated flooding. In response to the anticipated adverse weather, a First Alert Weather Day has been issued for Connecticut, signaling preparedness for significant weather impacts.

The precipitation is expected to contribute to a general pattern of cooler-than-average temperatures that will persist throughout the upcoming week. Specific details regarding the exact timing and intensity of the rainfall, as well as the precise areas most at risk for flooding, were not immediately available.

Meteorologists advise residents to stay informed about weather updates as Sunday approaches. The cooler air mass settling in is expected to keep daytime highs below seasonal norms for several days.

The National Weather Service typically issues First Alert Weather Days when significant weather events, such as heavy rain, severe thunderstorms, or winter storms, are expected to impact an area and warrant public attention and preparation. The current outlook suggests that Sunday’s weather system could meet these criteria for Connecticut.

Story summarized from the original created by Tyler Hughes on www.wfsb.com, see more information here.

Media gallery