Islip, New York
[Long Island Mac Arthur Airport]

Latitude: 40.79388
Longitude: -73.10189
Elevation 84 feet

Data from National Weather Service: Forecast Office: OKX; Station Code: ISP; GHCN ID: USW00004781

Station Records:
   Max High: 104° recorded on Jul 3, 1966
   Min High: 6° recorded on Jan 21, 1985
   Max Low: 81° recorded on Jul 6, 1999
   Min Low: -14° recorded on Feb 13, 1967
   Max Precip: 13.51" recorded on Aug 13, 2014
   Max Snowfall: 23.5" recorded on Jan 29, 2022

 

 

 

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Weather Over The Last 8 Weeks:
High Temps Low Temps Precip 7 Day Avg

 

This station has 22,684 daily observations. Dated from September 5, 1963 until October 19, 2025.

The data for this station is 99.9% complete, 100.0% of the daily records are available, of which 100.0% of that data is complete.

 

Today (October 20) in Weather History for Islip, New York

Records For This Day:

Max High: 77° recorded in 2021
Min High: 45° recorded in 1974
Max Low: 58° recorded in 1994
Min Low: 30° recorded in 1974
Max Precip: 3.90" recorded in 1989

No Snowfall Recorded Today

 

 

Detailed Forecast