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Timeline For Thunderstorms Released For CT: Here's What To Know

Major weather changes are forecast for Connecticut. Here are the new details.

The National Weather Service said Connecticut may see thunderstorms between 5 p.m. and 8 p.m. Sunday.

Rain is forecast to fall for much of the day and night on Sunday with up to 2 inches of rain possible, according to forecast updates.

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"In addition to rain that could be heavy at times, it will be cool with highs in the 60s," said WFSB 3 TV meteorologists. "Although expected rainfall amounts look overall lower than last weekend's system, there's still the potential for 1-2″ or more of rainfall - particularly in SW CT. Because of this, isolated flooding/ponding can't be ruled out tomorrow."

Rain should end late Sunday, and it will feel like fall next week, with temperatures only reaching into the 50s and 60s. There is a chance of some rain on Wednesday, Thursday, and Friday next week, but the odds are only around 30 to 40 percent.

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Here are the forecast details for southern Connecticut via the National Weather Service:

This Afternoon: Mostly sunny, with a steady temperature around 67. Southeast wind around 8 mph.

Tonight: Increasing clouds, with a low around 55. Southeast wind around 7 mph.

Sunday: Rain, with thunderstorms also possible after 5pm. High near 68. Southeast wind 8 to 11 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night: Rain and possibly a thunderstorm before 8pm, then rain likely. Low around 53. Southeast wind 7 to 9 mph becoming northeast after midnight. Chance of precipitation is 80%. New precipitation amounts between three quarters and one inch possible.

Monday: A 30 percent chance of rain before 8am. Partly sunny, with a high near 67. Northeast wind 10 to 14 mph.

Monday Night: Mostly cloudy, with a low around 50.TuesdayMostly cloudy, with a high near 64.

Tuesday Night: Mostly cloudy, with a low around 49.

Wednesday: Partly sunny, with a high near 65. Breezy.

Wednesday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 50.

Thursday: A 30 percent chance of showers. Mostly cloudy, with a high near 64. Breezy.

Thursday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 50.

Friday: A 30 percent chance of showers. Partly sunny, with a high near 64.

Here are the forecast details for northern Connecticut via the National Weather Service:

This Afternoon: Partly sunny, with a high near 68. Calm wind.

Tonight: Mostly cloudy, with a low around 49. Light southeast wind.

Sunday: Showers, mainly after 1pm. Patchy fog after noon. High near 63. Southeast wind 3 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Sunday Night:Showers, mainly before 1am. Patchy fog before 9pm. Low around 51. East wind 5 to 11 mph becoming north after midnight. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Monday: Partly sunny, with a high near 67. North wind 9 to 11 mph, with gusts as high as 21 mph.

Monday Night: Mostly cloudy, with a low around 46. North wind 5 to 8 mph.

Tuesday: Mostly cloudy, with a high near 63. Northeast wind 8 to 10 mph.

Tuesday Night: Mostly cloudy, with a low around 45. Northeast wind 6 to 8 mph.

Wednesday: Partly sunny, with a high near 65. Northeast wind 11 to 15 mph, with gusts as high as 26 mph.

Wednesday Night: Mostly cloudy, with a low around 45. Northeast wind 10 to 13 mph.

Thursday: A chance of showers. Mostly cloudy, with a high near 63. Northeast wind 15 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.

Thursday Night: A chance of showers. Mostly cloudy, with a low around 46. North wind around 16 mph. Chance of precipitation is 30%.

Friday: A chance of showers. Mostly cloudy, with a high near 64. North wind 15 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

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