Point Forecast: Islip, Long Island Mac Arthur Airport NY  40.78N 73.09W (Elev. 49 ft)	Last Update: 3:00 am EST Dec 13, 2025

[show menu]

Date	12/13																			12/14
Hour (EST)	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04
Temperature (°F)	25	26	26	28	32	37	40	41	41	42	41	40	39	38	37	36	35	34	34	33	32	32	31	30
Date																				12/15
Hour (EST)	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04
Temperature (°F)	30	30	30	30	30	31	31	31	31	30	29	27	25	24	23	22	22	21	20	20	19	19	18	18

International System of Units Forecast Discussion 7-Day Forecast Hourly Weather Graph Hazardous Weather Regional Weather Conditions Local Climate Graphical Forecast Maps Home