CT Weather: Timeline For Severe Weather Released, It Will Feel Like 100 Degrees Thursday

CONNECTICUT — It will be another hot, humid and oppressive day in Connecticut today, with a chance for isolated severe thunderstorms.

The National Weather Service has a heat advisory in place for Connecticut for Thursday, and it cautions that high temperatures and high humidity can cause heat-related illnesses.

Thursday will be the last day with “dangerous heat and humidity,” and heat indices reaching up to around 100 degrees, according to the National Weather Service.

WFSB 3 TV is reporting that today’s forecast will make it the second heat wave of the year.

“We hit 90 at Bradley Airport Tuesday, 93 yesterday… therefore what will likely be our 2nd heat wave of ’25 is underway and becomes official today (we need 3 consecutive days 90 or higher to qualify),” WFSB reported.

Most of Thursday is expected to be dry, however isolated severe thunderstorms are possible into early Thursday evening, according to the National Weather Service. The timeline for severe thunderstorms is from noon until 10 p.m., with the main concern being damaging wind gusts.

WFSB reports that some showers and “maybe a rumble of thunder” will roll through late morning.

“A mid to late morning shower/storm can’t be ruled out,” WFSB reported.

This afternoon, WFSB predicts it will be sunny with temperatures reaching into the lower 90s, but it will feel like it is between 95 and 105 degrees due to the humidity.

Around sunset, a cold front arrives, bringing with it a chance for an isolated shower or storm, according to WFSB.

After the front passes through, Friday is expected to have “spectacular” weather, with cooler air and lower humidity, WFSB reports, and the station anticipates Saturday will be similar. The station is monitoring potential rain for Sunday.

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Here are the forecast details for northern Connecticut via the National Weather Service, as of Thursday morning:

Today: Showers and thunderstorms likely, mainly before noon. Partly sunny and hot, with a high near 94. Heat index values as high as 101. Southwest wind 7 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight: A slight chance of showers and thunderstorms before 9 p.m. Partly cloudy, with a low around 69. Southwest wind 9 to 11 mph becoming northwest after midnight. Chance of precipitation is 20%.

Friday: Mostly sunny, with a high near 83. North wind 8 to 13 mph, with gusts as high as 23 mph.

Friday Night: Mostly clear, with a low around 55. Northwest wind around 5 mph becoming calm in the evening.

Saturday: Mostly sunny, with a high near 85. Calm wind becoming southwest 5 to 8 mph in the afternoon.

Saturday Night: A chance of showers before 2 a.m., then a chance of showers and thunderstorms between 2 a.m. and 3 a.m., then showers likely and possibly a thunderstorm after 3 a.m. Mostly cloudy, with a low around 68. South wind 6 to 8 mph. Chance of precipitation is 60%.

Sunday: Showers likely and possibly a thunderstorm before 8 a.m., then a chance of showers and thunderstorms after 8 a.m. Partly sunny, with a high near 83. West wind 6 to 8 mph. Chance of precipitation is 60%.

Sunday Night: Partly cloudy, with a low around 61. North wind around 7 mph.

Here are the forecast details for southern Connecticut via the National Weather Service, as of Thursday morning:

Today: A 40 percent chance of showers and thunderstorms, mainly before 2 p.m. Partly sunny, with a high near 92. Heat index values as high as 100. Southwest wind 8 to 14 mph.

Tonight: Mostly clear, with a low around 71. West wind 8 to 13 mph.

Friday: Mostly sunny, with a high near 84. Northwest wind around 10 mph.

Friday Night: Mostly clear, with a low around 65. Northwest wind around 5 mph becoming calm in the evening.

Saturday: A 20 percent chance of showers after 2 p.m. Mostly sunny, with a high near 84. Calm wind becoming south 5 to 7 mph in the morning.

Saturday Night: Showers likely and possibly a thunderstorm, mainly after 2 a.m. Mostly cloudy, with a low around 71. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday: Showers likely and possibly a thunderstorm before 8 a.m., then a chance of showers and thunderstorms after 8 a.m. Partly sunny, with a high near 84. Chance of precipitation is 60%.

Sunday Night: Partly cloudy, with a low around 66.