Thunderstorms Forecast On Memorial Day In CT: Here's When, What To Know

CONNECTICUT — The weather has been largely beautiful this Memorial Day weekend, but that changes Monday.

Memorial Day itself won't be a washout during the day, but it will be cloudy with some occasional rain showers, but heavy rain and thunderstorms move in tonight. We could see a quick inch of rain by Tuesday morning and some strong storms are also possible.

"Memorial Day starts off with locally dense fog along with a few showers in the morning and then again during the afternoon hours," said WFSB 3 TV Meteorologist Jill Gilardi. "The heaviest rain and a few storms hold off until the evening and overnight hours. A bit cooler with highs in the 70s.

"The Storm Prediction Center has western CT in a Marginal Risk for severe weather, meaning some storms that form along the NY/CT state border could have strong winds with them. The Weather Prediction Center has all of CT in a Level 1 risk for excessive rainfall, indicating we may see a period of locally heavy rain overnight Monday into Tuesday morning leading to poor drainage flooding and ponding on roadways and this is why we have gone ahead and issued a FIRST ALERT. Impacts to travel and outdoor activities!" Gilardi added. (Read/watch more at WFSB 3 TV).

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Here is the 7-day weather forecast for southern Connecticut via the National Weather Service:

Memorial Day: A 30 percent chance of showers. Areas of fog. Otherwise, cloudy, with a high near 70. Southeast wind 8 to 13 mph.

Tonight: Showers and possibly a thunderstorm before midnight, then a chance of showers. Low around 63. South wind 7 to 11 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 80. Southwest wind 7 to 11 mph.

Wednesday: A 20 percent chance of showers after 2pm. Sunny, with a high near 76. West wind 7 to 9 mph.

Thursday: A 30 percent chance of showers before 2pm. Mostly sunny, with a high near 70.

Friday: Mostly sunny, with a high near 72.

Saturday: Sunny, with a high near 74.

Sunday: Mostly sunny, with a high near 74.

Here is the 7-day weather forecast for northern Connecticut via the National Weather Service:

Memorial Day: A chance of showers, then showers and possibly a thunderstorm after 3pm. High near 73. Southeast wind 7 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight: Showers and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms, mainly between midnight and 4am. Some of the storms could produce heavy rainfall. Patchy fog after 10pm. Low around 64. South wind 10 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Tuesday: Partly sunny, with a high near 82. Southwest wind 7 to 11 mph.

Wednesday: A slight chance of showers after 1pm. Mostly sunny, with a high near 76. West wind 8 to 10 mph. Chance of precipitation is 20%.

Thursday: A chance of showers before 2pm. Partly sunny, with a high near 71. North wind 7 to 9 mph. Chance of precipitation is 50%.

Friday: Mostly sunny, with a high near 72. Northwest wind 6 to 10 mph.

Saturday: Mostly sunny, with a high near 75. North wind 5 to 8 mph.

Sunday: Mostly sunny, with a high near 78. Calm wind becoming northwest around 6 mph in the afternoon.