Details And Timing On When To Expect Thunderstorms In New Canaan Today

For the third straight day Connecticut is under a Hazardous Weather Outlook as there is a chance for severe thunderstorms, strong winds and heavy downpours today. Today’s weather threat actually offers the best chance for thunderstorms across the state.

The National Weather Service says for southern Connecticut, “There is a marginal risk for severe thunderstorms from this afternoon into tonight. The main threat is from damaging winds. There is also a chance for localized flash flooding from late this afternoon through tonight.”

Also for southern Connecticut an Air Quality Alert in effect from 10 a.m. to 10 p.m. Thursday. “An Air Quality Action Day means that Ground Level Ozone within the region may approach or exceed unhealthy standards,” the weather service states.

NBC Connecticut Meteorologist Ryan Hanrahan wrote, “Another day of severe storms today. Best chance for storms is after 2 p.m. We'll keep you covered all day!”

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Here’s the updated forecast for New Canaan for the next few days via the National Weather Service:

Today: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Some of the storms could produce gusty winds and heavy rain. Partly sunny, with a high near 89. Heat index values as high as 97. West wind around 8 mph.

Tonight: Showers and thunderstorms likely, mainly before 10pm, then showers likely and possibly a thunderstorm after 1am. Some of the storms could produce gusty winds and heavy rain. Cloudy, with a low around 66. Northeast wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

Friday: Showers likely and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms between 7am and 11am, then showers likely and possibly a thunderstorm after 11am. Some of the storms could produce heavy rain. Cloudy, with a high near 69. Northeast wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

Friday Night: Showers likely and possibly a thunderstorm before 11pm, then a chance of showers and thunderstorms after 11pm. Cloudy, with a low around 65. East wind 3 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Saturday: A 20 percent chance of showers and thunderstorms before noon. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 83. Northwest wind 5 to 8 mph.

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

Sunday: Sunny, with a high near 85.

Sunday Night: Partly cloudy, with a low around 68.

— By BRIAN MCCREADY (Patch National Staff)