Point Forecast: Central Islip NY  40.79N 73.2W (Elev. 98 ft)	Last Update: 3:15 am EDT Jul 3, 2025

[hide menu]

Weather Elements Weather/Precipitation Aviation Weather Temperature (°F) Dewpoint (°F) Heat Index (°F) Surface Wind  ktmphkm/hm/s Sky Cover (%) Precipitation Potential (%) Relative Humidity (%) Rain Thunder Fog Ceiling Height Visibility

48-Hour Period Starting: 1pm Thu, Jul 3 20252pm Thu, Jul 3 20253pm Thu, Jul 3 20254pm Thu, Jul 3 20255pm Thu, Jul 3 20256pm Thu, Jul 3 20257pm Thu, Jul 3 20258pm Thu, Jul 3 20259pm Thu, Jul 3 202510pm Thu, Jul 3 202511pm Thu, Jul 3 202512am Fri, Jul 4 20251am Fri, Jul 4 20252am Fri, Jul 4 20253am Fri, Jul 4 20254am Fri, Jul 4 20255am Fri, Jul 4 20256am Fri, Jul 4 20257am Fri, Jul 4 20258am Fri, Jul 4 20259am Fri, Jul 4 202510am Fri, Jul 4 202511am Fri, Jul 4 202512pm Fri, Jul 4 20251pm Fri, Jul 4 20252pm Fri, Jul 4 20253pm Fri, Jul 4 20254pm Fri, Jul 4 20255pm Fri, Jul 4 20256pm Fri, Jul 4 20257pm Fri, Jul 4 20258pm Fri, Jul 4 20259pm Fri, Jul 4 202510pm Fri, Jul 4 202511pm Fri, Jul 4 202512am Sat, Jul 5 20251am Sat, Jul 5 20252am Sat, Jul 5 20253am Sat, Jul 5 20254am Sat, Jul 5 20255am Sat, Jul 5 20256am Sat, Jul 5 20257am Sat, Jul 5 20258am Sat, Jul 5 20259am Sat, Jul 5 202510am Sat, Jul 5 202511am Sat, Jul 5 202512pm Sat, Jul 5 20251pm Sat, Jul 5 20252pm Sat, Jul 5 20253pm Sat, Jul 5 20254pm Sat, Jul 5 20255pm Sat, Jul 5 20256pm Sat, Jul 5 20257pm Sat, Jul 5 20258pm Sat, Jul 5 20259pm Sat, Jul 5 202510pm Sat, Jul 5 202511pm Sat, Jul 5 202512am Sun, Jul 6 20251am Sun, Jul 6 20252am Sun, Jul 6 20253am Sun, Jul 6 20254am Sun, Jul 6 20255am Sun, Jul 6 20256am Sun, Jul 6 20257am Sun, Jul 6 20258am Sun, Jul 6 20259am Sun, Jul 6 202510am Sun, Jul 6 202511am Sun, Jul 6 202512pm Sun, Jul 6 20251pm Sun, Jul 6 20252pm Sun, Jul 6 20253pm Sun, Jul 6 20254pm Sun, Jul 6 20255pm Sun, Jul 6 20256pm Sun, Jul 6 20257pm Sun, Jul 6 20258pm Sun, Jul 6 20259pm Sun, Jul 6 202510pm Sun, Jul 6 202511pm Sun, Jul 6 202512am Mon, Jul 7 20251am Mon, Jul 7 20252am Mon, Jul 7 20253am Mon, Jul 7 20254am Mon, Jul 7 20255am Mon, Jul 7 20256am Mon, Jul 7 20257am Mon, Jul 7 20258am Mon, Jul 7 20259am Mon, Jul 7 202510am Mon, Jul 7 202511am Mon, Jul 7 202512pm Mon, Jul 7 20251pm Mon, Jul 7 20252pm Mon, Jul 7 20253pm Mon, Jul 7 20254pm Mon, Jul 7 20255pm Mon, Jul 7 20256pm Mon, Jul 7 20257pm Mon, Jul 7 20258pm Mon, Jul 7 20259pm Mon, Jul 7 202510pm Mon, Jul 7 202511pm Mon, Jul 7 202512am Tue, Jul 8 2025

Date	07/03											07/04
Hour (EDT)	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12
Temperature (°F)	87	89	87	87	86	83	80	79	76	75	74	74	72	71	70	69	68	68	70	72	75	78	80	81
Dewpoint (°F)	64	64	65	65	67	67	68	67	68	67	67	66	65	64	63	62	61	61	62	62	62	61	60	59
Heat Index (°F)	88	90	89	89	89	86	83	79	76	75											75	78	81	82
Surface Wind (mph)	7	9	9	10	9	8	7	6	6	6	6	6	5	6	6	6	6	6	6	6	6	6	7	7
Wind Dir	W	SW	SW	SW	W	SW	SW	NW	NW	W	NW	NW	NW	NW	N	N	NW	NW	N	N	N	N	N	NW
Gust
Sky Cover (%)	12	7	7	18	36	39	37	53	38	39	34	21	16	18	13	11	13	12	3	2	2	1	2	2
Precipitation Potential (%)	0	22	22	22	51	51	51	16	16	16	1	1	1	0	0	0	0	0	0	0	0	0	0	0
Relative Humidity (%)	46	44	48	48	53	59	67	67	76	76	79	76	79	79	78	78	78	78	76	71	64	56	51	47
Rain	--	SChc	SChc	SChc	Chc	Chc	Chc	SChc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	Chc	Chc	Chc	SChc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date												07/05
Hour (EDT)	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12
Temperature (°F)	82	83	84	85	85	84	82	80	78	75	73	71	70	69	67	66	66	67	69	72	75	78	81	83
Dewpoint (°F)	59	59	59	58	58	58	58	59	60	61	62	62	62	61	61	60	60	61	61	62	61	61	60	60
Heat Index (°F)	82	83	84	84	84	84	82	81	78	75											75	78	82	83
Surface Wind (mph)	7	7	7	7	7	7	6	6	5	5	3	3	2	2	2	2	2	2	2	2	2	2	3	5
Wind Dir	NW	NW	NW	NW	NW	NW	W	W	W	NW	NW	NW	NW	N	N	N	N	N	N	N	NE	SE	S	S
Gust
Sky Cover (%)	3	3	3	2	2	4	7	9	11	13	15	16	17	18	17	15	14	16	17	19	20	22	23	22
Precipitation Potential (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Relative Humidity (%)	45	44	42	40	40	41	44	49	55	62	68	72	74	76	78	81	81	80	76	71	63	55	49	46
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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