Severe Weather and Flood Potential for the East; Fire Weather Concerns for the Southwest and Alaska

Severe thunderstorms and heavy rainfall will affect the eastern portions of the country today. Across the Pacific Northwest and northern Plains, showers with the chance for severe thunderstorms later today. For the Southwest and southern portions of Alaska, fire weather concerns expected today and could extend into the holiday weekend. Rip currents are possible for the east coast and Puerto Rico. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Overcast

67°F

19°C

Humidity 93%
Wind Speed S 14 mph
Barometer 29.89 in (1012.3 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 27 May 3:56 pm EDT
Extended Forecast for

Port Jefferson NY

  • Tonight

    Tonight: Showers and possibly a thunderstorm, mainly before 5am, then a chance of showers and thunderstorms after 5am.  Patchy fog after 8pm. Low around 62. South wind 10 to 14 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Showers and
    Patchy Fog

    Low: 62 °F

  • Saturday

    Saturday: A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm.  Areas of fog before 11am.  Otherwise, mostly cloudy, with a high near 72. South wind around 9 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Chance
    Showers and
    Areas Fog
    then Showers
    Likely

    High: 72 °F

  • Saturday
    Night

    Saturday Night: A 30 percent chance of showers before 8pm.  Mostly clear, with a low around 59. West wind 5 to 8 mph.

    Chance
    Showers then
    Mostly Clear

    Low: 59 °F

  • Sunday

    Sunday: Sunny, with a high near 76. Calm wind becoming south around 5 mph in the afternoon.

    Sunny

    High: 76 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 61. Southwest wind around 7 mph.

    Mostly Clear

    Low: 61 °F

  • Memorial
    Day

    Memorial Day: Sunny, with a high near 81.

    Sunny

    High: 81 °F

  • Monday
    Night

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

    Partly Cloudy

    Low: 66 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 84.

    Mostly Sunny

    High: 84 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 59.

    Partly Cloudy

    Low: 59 °F

Detailed Forecast

Tonight
Showers and possibly a thunderstorm, mainly before 5am, then a chance of showers and thunderstorms after 5am. Patchy fog after 8pm. Low around 62. South wind 10 to 14 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 72. South wind around 9 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A 30 percent chance of showers before 8pm. Mostly clear, with a low around 59. West wind 5 to 8 mph.
Sunday
Sunny, with a high near 76. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 61. Southwest wind around 7 mph.
Memorial Day
Sunny, with a high near 81.
Monday Night
Partly cloudy, with a low around 66.
Tuesday
Mostly sunny, with a high near 84.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
Mostly sunny, with a high near 77.
Wednesday Night
Mostly cloudy, with a low around 61.
Thursday
A 30 percent chance of rain. Partly sunny, with a high near 78.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 62.
Friday
A 40 percent chance of rain. Partly sunny, with a high near 76.
Click Map For Forecast
Point Forecast:
Port Jefferson NY
 40.95°N 73.05°W (Elev. 151 ft)
3:19 pm EDT May 27, 2022
4pm EDT May 27, 2022-6pm EDT Jun 3, 2022
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database