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Strong thunderstorms are possible from southwestern Texas to northern Maine on Saturday

Strong to severe thunderstorms are possible Saturday from southwestern Texas to northern Maine. Primary threats will be damaging wind gusts with marginally severe hail also possible. In addition, moderate to heavy rainfall could produce flash flooding from the lower Mississippi Valley into the Ohio Valley.
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Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

A Few Clouds

73°F

23°C

Humidity 71%
Wind Speed S 15 G 26 mph
Barometer 30.10 in (1019.1 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 30 May 5:56 pm EDT
Extended Forecast for

Port Jefferson NY

  • Overnight



    Low: 65 °F

  • Saturday

    Becoming Sunny

    Becoming
    Sunny

    High: 79 °F

  • Saturday
    Night

    Patchy Fog

    Patchy
    Fog

    Low: 57 °F

  • Sunday

    Chance Thunderstorms Chance for Measurable Precipitation 50%

    Chance
    Thunderstorms

    High: 78 °F

  • Sunday
    Night

    Showers Likely Chance for Measurable Precipitation 60%

    Showers
    Likely

    Low: 56 °F

  • Monday

    Rain Likely Chance for Measurable Precipitation 70%

    Rain
    Likely

    High: 65 °F

  • Monday
    Night

    Rain Likely Chance for Measurable Precipitation 70%

    Rain
    Likely

    Low: 56 °F

  • Tuesday

    Showers Likely Chance for Measurable Precipitation 60%

    Showers
    Likely

    High: 69 °F

  • Tuesday
    Night

    Chance Showers Chance for Measurable Precipitation 30%

    Chance
    Showers

    Low: 57 °F

Detailed Forecast

Overnight
Low around 65.
Saturday
Partly sunny during the morning, then sunny during the afternoon, with a high near 79. North wind 11 to 15 mph.
Saturday Night
Patchy fog after 10pm. Otherwise, increasing clouds, with a low around 57. Southwest wind 11 to 15 mph.
Sunday
A chance of showers and thunderstorms, mainly after 3pm. Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 78. South wind around 10 mph. Chance of precipitation is 50%.
Sunday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Cloudy, with a low around 56. East wind 6 to 11 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Rain likely before noon, then showers likely and possibly a thunderstorm after noon. Cloudy, with a high near 65. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Rain likely. Cloudy, with a low around 56. Chance of precipitation is 70%.
Tuesday
Showers and thunderstorms likely. Cloudy, with a high near 69. Chance of precipitation is 60%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 71.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
Mostly sunny, with a high near 74.
Thursday Night
Partly cloudy, with a low around 62.
Friday
Mostly sunny, with a high near 75.
  Click Map For Forecast
Point Forecast:
Port Jefferson NY
 40.95°N 73.05°W (Elev. 151 ft)
6:35 pm EDT May 30, 2015
3am EDT May 30, 2015-6pm EDT Jun 5, 2015
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database