National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Coastal Storm Impacts Northeast; Heavy Rain Coming to the Southwest

A well-developed coastal storm will move slowly just off the Northeast coast today bringing gusty winds, flooding and high surf near the coast. Interior portions of New England will see a wintry mix of snow, sleet and freezing rain. Moisture from the remnants of Tropical Storm Raymond is forecast to be drawn over the Southwest U.S. midweek with a heavy rain and flash flood threat for Arizona. Read More >

Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Overcast

43°F

6°C

Humidity 86%
Wind Speed N 14 G 21 mph
Barometer 29.69 in (1005.4 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 18 Nov 2:56 pm EST
Extended Forecast for

Ronkonkoma NY

Coastal Flood Advisory until November 18, 04:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory until November 18, 04:00pm

    NOW until
    4:00pm Mon

    Coastal Flood Advisory

  • This
    Afternoon

    This Afternoon: Light rain likely with areas of drizzle before 4pm, then areas of drizzle with a chance of light rain after 4pm. Cloudy, with a high near 44. North wind around 15 mph. Chance of precipitation is 60%.

    Light Rain
    Likely

    High: 44 °F

  • Tonight

    Tonight: Rain likely. Cloudy, with a low around 36. North wind 5 to 8 mph becoming light and variable after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Rain Likely

    Low: 36 °F

  • Tuesday

    Tuesday: A 20 percent chance of rain before 9am. Partly sunny, with a high near 50. Light west wind increasing to 5 to 10 mph in the morning.

    Slight Chance
    Rain then
    Mostly Sunny

    High: 50 °F

  • Tuesday
    Night

    Tuesday Night: Mostly cloudy, with a low around 38. North wind 3 to 7 mph.

    Mostly Cloudy

    Low: 38 °F

  • Wednesday

    Wednesday: Partly sunny, with a high near 48. Northwest wind 6 to 15 mph.

    Partly Sunny

    High: 48 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 33.

    Mostly Clear

    Low: 33 °F

  • Thursday

    Thursday: Sunny, with a high near 50.

    Sunny

    High: 50 °F

  • Thursday
    Night

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

    Mostly Cloudy

    Low: 41 °F

Detailed Forecast

This Afternoon
Light rain likely with areas of drizzle before 4pm, then areas of drizzle with a chance of light rain after 4pm. Cloudy, with a high near 44. North wind around 15 mph. Chance of precipitation is 60%.
Tonight
Rain likely. Cloudy, with a low around 36. North wind 5 to 8 mph becoming light and variable after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
A 20 percent chance of rain before 9am. Partly sunny, with a high near 50. Light west wind increasing to 5 to 10 mph in the morning.
Tuesday Night
Mostly cloudy, with a low around 38. North wind 3 to 7 mph.
Wednesday
Partly sunny, with a high near 48. Northwest wind 6 to 15 mph.
Wednesday Night
Mostly clear, with a low around 33.
Thursday
Sunny, with a high near 50.
Thursday Night
Mostly cloudy, with a low around 41.
Friday
A 30 percent chance of showers before noon. Mostly cloudy, with a high near 56.
Friday Night
Partly cloudy, with a low around 33.
Saturday
Sunny, with a high near 47.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Partly sunny, with a high near 50.
Sunday Night
Partly cloudy, with a low around 34.
Monday
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Ronkonkoma NY
 40.81°N 73.11°W (Elev. 98 ft)
Last Update:
12:52 pm EST Nov 18, 2019
Forecast Valid:
3pm EST Nov 18, 2019-6pm EST Nov 25, 2019
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation