Point Forecast: Central Islip NY  40.79N 73.2W (Elev. 98 ft)	Last Update: 12:45 pm EDT Sep 14, 2026

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Weather Elements Fire Weather Aviation Weather Temperature (°F) Dewpoint (°F) Heat Index (°F) Surface Wind  ktmphkm/hm/s Sky Cover (%) Precipitation Potential (%) Relative Humidity (%) Rain Thunder Fog Mixing Height  x100ftx100m Trans. Wind  ktmphkm/hm/s Vent Rate (x1000 mph-ft) Atmospheric Dispersion Index Ceiling Height Visibility

48-Hour Period Starting: 2pm Mon, Sep 14 20263pm Mon, Sep 14 20264pm Mon, Sep 14 20265pm Mon, Sep 14 20266pm Mon, Sep 14 20267pm Mon, Sep 14 20268pm Mon, Sep 14 20269pm Mon, Sep 14 202610pm Mon, Sep 14 202611pm Mon, Sep 14 202612am Tue, Sep 15 20261am Tue, Sep 15 20262am Tue, Sep 15 20263am Tue, Sep 15 20264am Tue, Sep 15 20265am Tue, Sep 15 20266am Tue, Sep 15 20267am Tue, Sep 15 20268am Tue, Sep 15 20269am Tue, Sep 15 202610am Tue, Sep 15 202611am Tue, Sep 15 202612pm Tue, Sep 15 20261pm Tue, Sep 15 20262pm Tue, Sep 15 20263pm Tue, Sep 15 20264pm Tue, Sep 15 20265pm Tue, Sep 15 20266pm Tue, Sep 15 20267pm Tue, Sep 15 20268pm Tue, Sep 15 20269pm Tue, Sep 15 202610pm Tue, Sep 15 202611pm Tue, Sep 15 202612am Wed, Sep 16 20261am Wed, Sep 16 20262am Wed, Sep 16 20263am Wed, Sep 16 20264am Wed, Sep 16 20265am Wed, Sep 16 20266am Wed, Sep 16 20267am Wed, Sep 16 20268am Wed, Sep 16 20269am Wed, Sep 16 202610am Wed, Sep 16 202611am Wed, Sep 16 202612pm Wed, Sep 16 20261pm Wed, Sep 16 20262pm Wed, Sep 16 20263pm Wed, Sep 16 20264pm Wed, Sep 16 20265pm Wed, Sep 16 20266pm Wed, Sep 16 20267pm Wed, Sep 16 20268pm Wed, Sep 16 20269pm Wed, Sep 16 202610pm Wed, Sep 16 202611pm Wed, Sep 16 202612am Thu, Sep 17 20261am Thu, Sep 17 20262am Thu, Sep 17 20263am Thu, Sep 17 20264am Thu, Sep 17 20265am Thu, Sep 17 20266am Thu, Sep 17 20267am Thu, Sep 17 20268am Thu, Sep 17 20269am Thu, Sep 17 202610am Thu, Sep 17 202611am Thu, Sep 17 202612pm Thu, Sep 17 20261pm Thu, Sep 17 20262pm Thu, Sep 17 20263pm Thu, Sep 17 20264pm Thu, Sep 17 20265pm Thu, Sep 17 20266pm Thu, Sep 17 20267pm Thu, Sep 17 20268pm Thu, Sep 17 20269pm Thu, Sep 17 202610pm Thu, Sep 17 202611pm Thu, Sep 17 202612am Fri, Sep 18 20261am Fri, Sep 18 20262am Fri, Sep 18 20263am Fri, Sep 18 20264am Fri, Sep 18 20265am Fri, Sep 18 20266am Fri, Sep 18 20267am Fri, Sep 18 20268am Fri, Sep 18 20269am Fri, Sep 18 202610am Fri, Sep 18 202611am Fri, Sep 18 202612pm Fri, Sep 18 20261pm Fri, Sep 18 20262pm Fri, Sep 18 20263pm Fri, Sep 18 20264pm Fri, Sep 18 20265pm Fri, Sep 18 20266pm Fri, Sep 18 20267pm Fri, Sep 18 20268pm Fri, Sep 18 20269pm Fri, Sep 18 202610pm Fri, Sep 18 202611pm Fri, Sep 18 202612am Sat, Sep 19 20261am Sat, Sep 19 2026

Date	09/14										09/15
Hour (EDT)	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13
Temperature (°F)	73	75	73	72	71	68	66	65	64	62	61	61	60	59	57	56	55	55	57	60	63	65	68	69
Dewpoint (°F)	52	51	50	50	50	50	50	50	49	49	49	49	49	49	49	49	49	50	51	52	52	52	52	52
Heat Index (°F)		75
Surface Wind (mph)	14	14	13	13	11	10	9	8	8	8	7	7	7	7	6	6	7	7	7	6	6	5	5	6
Wind Dir	N	N	N	N	N	N	N	N	N	N	N	N	NE	NE	NE	NE	NE	NE	NE	NE	NE	E	E	SE
Gust	28	28	24	23	23	21
Sky Cover (%)	4	5	6	6	6	6	5	5	6	6	5	5	4	4	4	4	4	3	3	5	8	10	9	8
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 (%)	48	43	44	46	47	53	56	58	58	62	65	65	67	69	75	77	80	83	80	75	67	63	57	55
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date											09/16
Hour (EDT)	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13
Temperature (°F)	69	70	69	68	67	64	62	61	61	61	60	60	59	58	58	58	59	60	62	65	68	71	73	74
Dewpoint (°F)	53	53	53	54	55	55	56	56	57	57	57	56	56	56	56	56	57	59	60	61	62	62	62	63
Heat Index (°F)
Surface Wind (mph)	6	6	6	6	5	5	3	3	2	2	2	2	2	2	2	2	1	2	2	3	5	6	7	8
Wind Dir	SE	SE	SE	S	S	SE	SE	SE	S	S	S	S	S	S	S	S	S	SW	SW	SW	SW	SW	SW	SW
Gust
Sky Cover (%)	7	13	19	25	21	17	13	15	17	19	21	23	24	24	23	23	20	17	14	13	12	11	13	15
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 (%)	57	55	57	61	65	73	81	84	87	87	90	87	90	93	93	93	93	96	93	87	81	73	68	69
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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