National Weather Service

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Winter Weather Awareness Week is October 26th - November 1st, 2025

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

55°F

13°C

Humidity	40%
Wind Speed	NW 14 G 21 mph
Barometer	29.98 in (1015.2 mb)
Dewpoint	31°F (-1°C)
Visibility	10.00 mi
Wind Chill	51°F (11°C)
Last update	1 Nov 5:56 pm EDT

More Information:

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

Extended Forecast for

5 Miles SSE Blue Point NY

Tonight
Low: 48 °F
Partly Cloudy
and Breezy
then Mostly
Clear
Sunday
High: 58 °F
Sunny
Sunday Night
Low: 48 °F
Mostly Clear
Monday
High: 60 °F
Mostly Sunny
then Chance
Rain
Monday Night
Low: 51 °F
Chance Rain
and Breezy
Tuesday
High: 59 °F
Sunny
Tuesday Night
Low: 51 °F
Mostly Clear
Wednesday
High: 59 °F
Mostly Sunny
Wednesday Night
Low: 50 °F
Chance Rain
and Breezy

Detailed Forecast

Tonight

Partly cloudy, with a low around 48. Breezy, with a northwest wind 13 to 20 mph.

Sunday

Sunny, with a high near 58. Northwest wind 8 to 10 mph.

Sunday Night

Mostly clear, with a low around 48. Southwest wind around 7 mph.

Monday

A 30 percent chance of rain after 2pm. Partly sunny, with a high near 60. South wind 8 to 15 mph.

Monday Night

A 30 percent chance of rain before 2am. Partly cloudy, with a low around 51. Breezy, with a southwest wind 16 to 20 mph becoming northwest after midnight.

Tuesday

Sunny, with a high near 59.

Tuesday Night

Mostly clear, with a low around 51.

Wednesday

Mostly sunny, with a high near 59.

Wednesday Night

A 40 percent chance of rain. Mostly cloudy, with a low around 50. Breezy.

Thursday

Mostly sunny, with a high near 55. Breezy.

Thursday Night

Mostly clear, with a low around 45. Breezy.