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

27°F

-3°C

Humidity 92%
Wind Speed W 3 mph
Barometer 30.14 in (1020.7 mb)
Dewpoint 25°F (-4°C)
Visibility 9.00 mi
Last update 17 Feb 2:56 am EST
Detailed forecast for

Northwest Suffolk

Today
Cloudy with a slight chance of freezing drizzle and snow this morning, then partly sunny this afternoon. Highs in the lower 40s. Southwest winds 5 to 10 mph. Chance of precipitation 20 percent.
Tonight
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 30s. West winds around 5 mph.
Wednesday
Rain. Highs in the lower 40s. South winds around 5 mph, becoming east around 5 mph in the afternoon. Chance of rain 90 percent.
Wednesday Night
Rain likely in the evening. Lows in the lower 30s. North winds 5 to 10 mph. Chance of rain 60 percent.
Thursday
Mostly cloudy. Highs in the upper 30s. Northeast winds 5 to 10 mph, becoming east in the afternoon.
Thursday Night
Mostly cloudy. A chance of snow and rain after midnight. Lows around 30. Chance of precipitation 40 percent.
Friday
Rain. Highs around 40. Chance of rain 80 percent.
Friday Night
Mostly cloudy. A chance of rain in the evening, then a chance of rain and snow after midnight. Lows in the lower 30s. Chance of precipitation 50 percent.
Saturday
Mostly cloudy. A chance of rain and snow in the morning. Highs around 40. Chance of precipitation 30 percent.
Saturday Night
Mostly cloudy. A chance of snow and rain after midnight. Lows in the upper 20s. Chance of precipitation 30 percent.
Sunday
Partly sunny with a 50 percent chance of snow. Highs in the mid 30s.
Sunday Night
Mostly cloudy with a 50 percent chance of snow. Lows in the mid 20s.
Monday
Partly sunny. Highs in the mid 30s.



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121 AM EST Tue Feb 17 2026
 
 

Additional Resources

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Hourly Weather Forecast

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