CT Weather: Thunderstorms, Rain Today, Heat Index Soars

CONNECTICUT — It's another Wednesday and that once again means there is a chance for thunderstorms and rain today. The unsettled weather is expected to continue into Thursday morning as well.

There are also some major weather changes coming today too as the heat index approaches 90 degrees today in parts of the state but by Friday the high temperatures struggle to hit 70 degrees.

WTNH News 8 Meteorologist Gil Simmons says that thunderstorms are most likely today between 5 p.m. and 8 p.m. in Connecticut.

"Our local weather will feature warm temperatures for the afternoon with humidity. Highs will range from 78 near the water to 86 inland! The heat index will be near 90. Mostly dry with hazy sun, there could be a scattered thunderstorms between 5 and 8 PM. Couple of showers possible tomorrow as cooler air arrives. Beautiful on Friday the 13th with sunshine and temperatures between 68 and 70. Mostly dry Saturday with a late thunderstorm. Warming back up to the 80s on Sunday!" Simmons wrote on his social media.

The National Weather Service adds that a "few showers and thunderstorms are possible ahead of and in the vicinity of the front late today and tonight, with some lingering activity possible on Thursday. Hot weather away from the immediate coasts today, with highs approaching 90 west of the Hudson River. Temperatures will cool by several degrees on Thursday with increasing winds from the east."

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Here is the updated weather forecast for Southern Connecticut:

Today
Mostly sunny, with a high near 83. Southwest wind 9 to 11 mph.

Tonight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Partly cloudy, with a low around 66. Southwest wind 5 to 8 mph becoming light and variable after midnight.

Thursday
A 40 percent chance of showers and thunderstorms, mainly before 11am. Mostly cloudy, with a high near 78. North wind around 8 mph.

Thursday Night
Mostly cloudy, with a low around 56. East wind around 11 mph.

Friday
Mostly sunny, with a high near 71. Northeast wind 11 to 14 mph.

Friday Night
Partly cloudy, with a low around 61.

Saturday
Mostly cloudy, with a high near 77.

Saturday Night
A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 64.

Sunday
Mostly sunny, with a high near 79.

Sunday Night
Partly cloudy, with a low around 62.

Here is the updated weather forecast for Northern Connecticut:

Today
A slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 85. Southwest wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

Tonight
Increasing clouds, with a low around 67. South wind around 5 mph becoming calm in the evening.

Thursday
Partly sunny, with a high near 75. North wind 6 to 8 mph.

Thursday Night
Partly cloudy, with a low around 54. Northeast wind around 5 mph.

Friday
Mostly sunny, with a high near 72. Northeast wind around 7 mph becoming southeast in the afternoon.

Friday Night
Partly cloudy, with a low around 55. Southeast wind 3 to 6 mph.

Saturday
A chance of showers after 1pm. Mostly cloudy, with a high near 76. South wind 5 to 9 mph. Chance of precipitation is 30%.

Saturday Night
A chance of showers before 11pm. Mostly cloudy, with a low around 63. South wind 3 to 7 mph. Chance of precipitation is 30%.

Sunday
Mostly sunny, with a high near 81. West wind 3 to 6 mph.

Sunday Night
Partly cloudy, with a low around 60. West wind around 5 mph becoming calm in the evening.