Stormy Weather Along the East Coast; Mountain Snow and Valley Rain in the West

Showers and thunderstorms will linger along the east coast through this evening. Locally heavy rain is possible and may lead to isolated instances of flooding, especially in the Mid-Atlantic through the New England region. A front moving across the west will keep mountain snow and low elevation rain chances in the forecast through Friday. Heavy rain is expected in central/southern California. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Overcast

42°F

6°C

Humidity 55%
Wind Speed N 14 G 25 mph
Barometer 29.72 in (1006.5 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 29 Mar 4:56 am EDT
Extended Forecast for

Port Jefferson NY

  • Today

    Today: Cloudy through mid morning, then gradual clearing, with a high near 51. Northwest wind around 17 mph, with gusts as high as 29 mph.

    Gradual
    Clearing

    High: 51 °F

  • Tonight

    Tonight: Partly cloudy, with a low around 38. Northwest wind around 18 mph, with gusts as high as 30 mph.

    Partly Cloudy

    Low: 38 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 54. West wind 14 to 17 mph, with gusts as high as 29 mph.

    Mostly Sunny

    High: 54 °F

  • Saturday
    Night

    Saturday Night: A 30 percent chance of rain, mainly before 2am.  Mostly cloudy, with a low around 43. Southwest wind 6 to 10 mph.

    Chance Rain

    Low: 43 °F

  • Sunday

    Sunday: Partly sunny, with a high near 55. Northwest wind around 11 mph.

    Partly Sunny

    High: 55 °F

  • Sunday
    Night

    Sunday Night: Mostly cloudy, with a low around 41.

    Mostly Cloudy

    Low: 41 °F

  • Monday

    Monday: A 40 percent chance of rain after 8am.  Mostly cloudy, with a high near 50.

    Chance Rain

    High: 50 °F

  • Monday
    Night

    Monday Night: Rain likely, mainly after 2am.  Mostly cloudy, with a low around 41. Chance of precipitation is 70%.

    Chance Rain
    then Rain
    Likely

    Low: 41 °F

  • Tuesday

    Tuesday: Rain.  High near 47. Chance of precipitation is 80%.

    Rain

    High: 47 °F

Detailed Forecast

Today
Cloudy through mid morning, then gradual clearing, with a high near 51. Northwest wind around 17 mph, with gusts as high as 29 mph.
Tonight
Partly cloudy, with a low around 38. Northwest wind around 18 mph, with gusts as high as 30 mph.
Saturday
Mostly sunny, with a high near 54. West wind 14 to 17 mph, with gusts as high as 29 mph.
Saturday Night
A 30 percent chance of rain, mainly before 2am. Mostly cloudy, with a low around 43. Southwest wind 6 to 10 mph.
Sunday
Partly sunny, with a high near 55. Northwest wind around 11 mph.
Sunday Night
Mostly cloudy, with a low around 41.
Monday
A 40 percent chance of rain after 8am. Mostly cloudy, with a high near 50.
Monday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 41. Chance of precipitation is 70%.
Tuesday
Rain. High near 47. Chance of precipitation is 80%.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 40. Chance of precipitation is 70%.
Wednesday
Rain likely. Mostly cloudy, with a high near 49. Chance of precipitation is 60%.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 38.
Thursday
Partly sunny, with a high near 50. Breezy.
Click Map For Forecast
Point Forecast:
Port Jefferson NY
 40.95°N 73.05°W (Elev. 151 ft)
3:14 am EDT Mar 29, 2024
5am EDT Mar 29, 2024-6pm EDT Apr 4, 2024
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database