National Weather Service United States Department of Commerce

Severe storms and heavy rain possible from mid-South to Upstate New York on Tuesday

Thunderstorms are expected to develop along and ahead of a cold front from the Tennessee Valley to Upstate New York on Tuesday. The storms will be capable of producing damaging wind gusts and heavy rainfall that could lead to isolated flash flooding.
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Current Conditions

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Port Jefferson NY

7 Day Forecast

For More Weather Information:

New York, NY Local Forecast Office

Today

Mostly Sunny

Mostly
Sunny

High: 88 °F

Tonight

Heavy Rain Chance for Measurable Precipitation 20%

Heavy
Rain

Low: 69 °F

Wednesday

Sunny

Sunny

High: 84 °F

Wednesday
Night

Clear

Clear

Low: 65 °F

Thursday

Sunny

Sunny

High: 82 °F

Thursday
Night

Mostly Clear

Mostly
Clear

Low: 67 °F

Friday

Sunny

Sunny

High: 82 °F

Friday
Night

Partly Cloudy

Partly
Cloudy

Low: 70 °F

Saturday

Chance Thunderstorms Chance for Measurable Precipitation 40%

Chance
Thunderstorms

High: 83 °F

Detailed Forecast

  • Today Mostly sunny, with a high near 88. Light southwest wind increasing to 5 to 10 mph in the morning.
  • Tonight A slight chance of showers and thunderstorms between 10pm and 2am, then a slight chance of showers after 2am. Some of the storms could produce heavy rain. Mostly cloudy, with a low around 69. South wind 8 to 10 mph becoming west after midnight. Chance of precipitation is 20%.
  • Wednesday Sunny, with a high near 84. Northwest wind 8 to 11 mph.
  • Wednesday Night Clear, with a low around 65. West wind around 5 mph becoming light and variable in the evening.
  • Thursday Sunny, with a high near 82. Northeast wind 6 to 8 mph becoming south in the afternoon.
  • Thursday Night Mostly clear, with a low around 67.
  • Friday Sunny, with a high near 82.
  • Friday Night Partly cloudy, with a low around 70.
  • Saturday A chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 40%.
  • Saturday Night A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 40%.
  • Sunday A chance of showers. Partly sunny, with a high near 75. Chance of precipitation is 30%.
  • Sunday Night Partly cloudy, with a low around 60.
  • Monday Mostly sunny, with a high near 74.