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Fall 2026 Frost/Freeze Program

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

A Few Clouds

55°F

13°C

Humidity	74%
Wind Speed	SE 5 mph
Barometer	30.18 in (1021.9 mb)
Dewpoint	47°F (8°C)
Visibility	10.00 mi
Wind Chill	54°F (12°C)
Last update	15 Oct 7:56 pm EDT

More Information:

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

Extended Forecast for

Selden NY

Tonight
Low: 50 °F
Partly Cloudy
then Chance
Showers
Friday
High: 70 °F
Showers then
Chance
Showers
Friday Night
Low: 44 °F
Showers then
Showers
Likely
Saturday
High: 53 °F
Gradual
Clearing
Saturday Night
Low: 39 °F
Mostly Clear
Sunday
High: 56 °F
Sunny
Sunday Night
Low: 43 °F
Mostly Clear
Monday
High: 60 °F
Sunny
Monday Night
Low: 45 °F
Partly Cloudy

Detailed Forecast

Tonight

A 30 percent chance of showers after 5am. Increasing clouds, with a low around 50. Southeast wind 3 to 7 mph.

Friday

Showers, with thunderstorms also possible after 2pm. High near 70. Southwest wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday Night

A chance of showers and thunderstorms, then showers after 8pm. Low around 44. Southwest wind 8 to 11 mph becoming northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday

Cloudy through mid morning, then gradual clearing, with a high near 53. North wind around 17 mph, with gusts as high as 28 mph.

Saturday Night

Mostly clear, with a low around 39. North wind 8 to 13 mph.

Sunday

Sunny, with a high near 56.

Sunday Night

Mostly clear, with a low around 43.

Monday

Sunny, with a high near 60.

Monday Night

Partly cloudy, with a low around 45.