Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79° N Lon: 73.1° W Elev: 98 ft.

Overcast

45°F

7°C

Humidity 80%
Wind Speed NW 18 G 28 mph
Barometer 29.46 in (997.8 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 21 Mar 5:56 am EDT
Detailed forecast for

Southwest Suffolk

Today
Partly sunny with a slight chance of showers this morning, then sunny this afternoon. Breezy with highs in the lower 50s. Northwest winds 20 to 25 mph with gusts up to 45 mph. Chance of rain 20 percent.
Tonight
Mostly clear. Lows in the lower 30s. Northwest winds 15 to 20 mph with gusts up to 30 mph, becoming west 5 to 10 mph after midnight.
Saturday
Mostly sunny in the morning, then becoming mostly cloudy. Highs in the mid 50s. Southwest winds 10 to 15 mph. Gusts up to 30 mph in the afternoon.
Saturday Night
Partly cloudy in the evening, then clearing. Lows in the lower 30s. Northwest winds 15 to 20 mph with gusts up to 35 mph.
Sunday
Sunny. Highs in the mid 40s. Northwest winds 10 to 15 mph. Gusts up to 30 mph in the morning.
Sunday Night
Mostly cloudy. A chance of rain after midnight. Lows in the upper 30s. Chance of rain 50 percent.
Monday
Rain. Highs in the mid 50s. Chance of rain 80 percent.
Monday Night
Mostly cloudy with rain likely in the evening, then partly cloudy with a chance of rain after midnight. Lows around 40. Chance of rain 70 percent.
Tuesday
Mostly sunny. Highs in the lower 50s.
Tuesday Night
Partly cloudy. Lows in the upper 30s.
Wednesday
Partly sunny with a 30 percent chance of rain. Highs in the lower 50s.
Wednesday Night
Partly cloudy. Lows in the mid 30s.
Thursday
Mostly sunny. Highs in the lower 50s.



Click Map For Forecast
607 AM EDT Fri Mar 21 2025
 
 

Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database