Hot temperatures and critical fire weather conditions for portions of California; Flash Flood threat for parts of Texas

Critical fire weather conditions and unseasonably hot temperatures will be prevalent across parts of southern California early this week. Any fires that start in this area could quickly grow out of control; Red Flag Warnings and Heat Advisories are in effect. Meanwhile, heavy rain is forecast in parts of Texas through early Monday. Flash Flood Watches are in effect for portions of southwest Texas. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

68°F

20°C

Humidity 45%
Wind Speed S 12 G 18 mph
Barometer 30.17 in (1021.5 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 26 Sep 12:56 pm EDT
Extended Forecast for

Port Jefferson NY

  • This
    Afternoon

    This Afternoon: Mostly sunny, with a high near 70. South wind around 11 mph.

    Mostly Sunny

    High: 70 °F

  • Tonight

    Tonight: Showers, mainly after 3am.  Low around 63. South wind 10 to 15 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Mostly Cloudy
    then Showers

    Low: 63 °F

  • Tuesday

    Tuesday: Showers, mainly before 11am.  High near 74. West wind 9 to 13 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Showers then
    Chance
    Showers

    High: 74 °F

  • Tuesday
    Night

    Tuesday Night: A 40 percent chance of showers after 9pm.  Partly cloudy, with a low around 59. Southwest wind 5 to 9 mph becoming light and variable.

    Chance
    Showers

    Low: 59 °F

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly after noon.  Mostly sunny, with a high near 72. East wind 8 to 11 mph.

    Chance
    Showers

    High: 72 °F

  • Wednesday
    Night

    Wednesday Night: A 40 percent chance of showers.  Mostly cloudy, with a low around 60.

    Chance
    Showers

    Low: 60 °F

  • Thursday

    Thursday: A 50 percent chance of showers.  Mostly cloudy, with a high near 69.

    Chance
    Showers

    High: 69 °F

  • Thursday
    Night

    Thursday Night: A 50 percent chance of showers.  Mostly cloudy, with a low around 61.

    Chance
    Showers

    Low: 61 °F

  • Friday

    Friday: A 40 percent chance of showers.  Mostly cloudy, with a high near 69.

    Chance
    Showers

    High: 69 °F

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 70. South wind around 11 mph.
Tonight
Showers, mainly after 3am. Low around 63. South wind 10 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Showers, mainly before 11am. High near 74. West wind 9 to 13 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
A 40 percent chance of showers after 9pm. Partly cloudy, with a low around 59. Southwest wind 5 to 9 mph becoming light and variable.
Wednesday
A 30 percent chance of showers, mainly after noon. Mostly sunny, with a high near 72. East wind 8 to 11 mph.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 60.
Thursday
A 50 percent chance of showers. Mostly cloudy, with a high near 69.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 61.
Friday
A 40 percent chance of showers. Mostly cloudy, with a high near 69.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 60.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 70.
Saturday Night
Partly cloudy, with a low around 58.
Sunday
Mostly sunny, with a high near 70.
Click Map For Forecast
Point Forecast:
Port Jefferson NY
 40.95°N 73.05°W (Elev. 151 ft)
1:06 pm EDT Sep 26, 2016
1pm EDT Sep 26, 2016-6pm EDT Oct 2, 2016
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database