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Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

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

Overcast

72°F

22°C

Humidity	84%
Wind Speed	E 7 mph
Barometer	30.10 in (1019.2 mb)
Dewpoint	67°F (19°C)
Visibility	10.00 mi
Last update	12 Jul 10:56 pm EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Detailed forecast for

Northwest Suffolk

This Afternoon

Mostly sunny. Near steady temperature around 80. Southeast winds 5 to 10 mph.

Tonight

Partly cloudy in the evening, then becoming mostly cloudy. Humid with lows around 70. Southeast winds 5 to 10 mph.

Sunday

Mostly cloudy in the morning, then becoming mostly sunny. Humid with highs in the lower 80s. East winds 5 to 10 mph.

Sunday Night

Partly cloudy in the evening, then becoming mostly cloudy. Humid with lows in the lower 70s. Southeast winds 5 to 10 mph.

Monday

Mostly cloudy with a slight chance of showers in the morning, then partly sunny with a chance of showers with isolated thunderstorms in the afternoon. Humid with highs in the mid 80s. South winds 5 to 10 mph. Chance of rain 50 percent.

Monday Night

Mostly cloudy. Scattered thunderstorms with a chance of showers in the evening, then a chance of showers after midnight. Lows in the lower 70s. Chance of rain 50 percent.

Tuesday

Sunny. Highs around 90. Heat index values in the upper 90s.

Tuesday Night

Mostly clear. Lows in the mid 70s.

Wednesday

Sunny. Highs around 90. Heat index values up to 100.

Wednesday Night

Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 70s.

Thursday

Partly sunny. A chance of showers in the afternoon. Highs in the lower 90s. Chance of rain 40 percent. Heat index values up to 100.

Thursday Night

Mostly cloudy with a chance of showers. Lows in the mid 70s. Chance of rain 40 percent.

Friday

Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 50 percent. Heat index values up to 100.

Friday Night

Mostly cloudy. A chance of showers and thunderstorms in the evening, then a chance of showers after midnight. Lows in the lower 70s. Chance of rain 50 percent.

Saturday

Partly sunny. A chance of showers. Highs in the upper 80s. Chance of rain 30 percent. Heat index values in the mid 90s.