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Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

A Few Clouds

42°F

6°C

Humidity	41%
Wind Speed	NW 17 G 29 mph
Barometer	29.89 in (1012.0 mb)
Dewpoint	20°F (-7°C)
Visibility	10.00 mi
Wind Chill	34°F (1°C)
Last update	17 Nov 6:56 pm EST

More Information:

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

Extended Forecast for

Holtsville NY

Tonight
Low: 33 °F
Mostly Clear
Tuesday
High: 47 °F
Mostly Sunny
Tuesday Night
Low: 35 °F
Slight Chance
Rain then
Chance
Rain/Snow
Wednesday
High: 49 °F
Slight Chance
Rain
Wednesday Night
Low: 35 °F
Mostly Cloudy
Thursday
High: 51 °F
Mostly Cloudy
Thursday Night
Low: 42 °F
Cloudy
Friday
High: 57 °F
Chance Rain
Friday Night
Low: 41 °F
Chance Rain

Detailed Forecast

Tonight

Mostly clear, with a low around 33. West wind 10 to 15 mph, with gusts as high as 29 mph.

Tuesday

Mostly sunny, with a high near 47. West wind 9 to 13 mph.

Tuesday Night

A slight chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 35. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 40%.

Wednesday

A 20 percent chance of rain before 1pm. Partly sunny, with a high near 49. Calm wind becoming north 5 to 8 mph in the morning.

Wednesday Night

Mostly cloudy, with a low around 35. Light northeast wind.

Thursday

Mostly cloudy, with a high near 51.

Thursday Night

Cloudy, with a low around 42.

Friday

A 40 percent chance of rain. Cloudy, with a high near 57.

Friday Night

A 50 percent chance of rain. Mostly cloudy, with a low around 41.