National Weather Service United States Department of Commerce

Warmup expected in the East, cooler weather forecast across parts of West

Much of the eastern U.S. will see a significant warming trend beginning on Friday, with high temperatures as much as 10-15 degrees warmer than on Thursday. The warming trend will continue into the weekend. Meanwhile, temperatures will be on the decrease across much of the northern Plains and Intermountain West over the next several days.
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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

This
Afternoon

Mostly Sunny

Mostly
Sunny

High: 38 °F

Tonight

Partly Cloudy

Partly
Cloudy

Low: 22 °F

Saturday

Mostly Cloudy

Mostly
Cloudy

High: 37 °F

Saturday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 37 °FRising Temperatures

Sunday

Partly Sunny

Partly
Sunny

High: 51 °F

Sunday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 46 °F

Monday

Mostly Cloudy

Mostly
Cloudy

High: 54 °F

Monday
Night

Chance Showers Chance for Measurable Precipitation 30%

Chance
Showers

Low: 34 °F

Tuesday

Mostly Sunny

Mostly
Sunny

High: 41 °F

Detailed Forecast

  • This Afternoon Mostly sunny, with a high near 38. Wind chill values between 25 and 30. Northwest wind around 18 mph, with gusts as high as 28 mph.
  • Tonight Partly cloudy, with a low around 22. Wind chill values between 15 and 20. Northwest wind 7 to 14 mph.
  • Saturday Mostly cloudy, with a high near 37. Wind chill values between 15 and 25. Calm wind becoming southwest 5 to 7 mph in the morning.
  • Saturday Night Mostly cloudy, with a temperature rising to around 42 by 4am. Wind chill values between 30 and 35. South wind 6 to 9 mph.
  • Sunday Partly sunny, with a high near 51. Southwest wind 8 to 15 mph.
  • Sunday Night Mostly cloudy, with a low around 46.
  • Monday Mostly cloudy, with a high near 54.
  • Monday Night A chance of showers. Mostly cloudy, with a low around 34. Chance of precipitation is 30%.
  • Tuesday Mostly sunny, with a high near 41.
  • Tuesday Night A chance of rain. Mostly cloudy, with a low around 37. Chance of precipitation is 40%.
  • Wednesday A chance of rain. Cloudy, with a high near 51. Chance of precipitation is 40%.
  • Wednesday Night A chance of rain. Mostly cloudy, with a low around 38. Chance of precipitation is 30%.
  • Thursday Mostly sunny, with a high near 47.