Point Forecast: Port Jefferson NY  40.95N 73.05W (Elev. 151 ft)	Last Update: 1:28 pm EST Nov 10, 2025

[hide menu]

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

48-Hour Period Starting: 6pm Mon, Nov 10 20257pm Mon, Nov 10 20258pm Mon, Nov 10 20259pm Mon, Nov 10 202510pm Mon, Nov 10 202511pm Mon, Nov 10 202512am Tue, Nov 11 20251am Tue, Nov 11 20252am Tue, Nov 11 20253am Tue, Nov 11 20254am Tue, Nov 11 20255am Tue, Nov 11 20256am Tue, Nov 11 20257am Tue, Nov 11 20258am Tue, Nov 11 20259am Tue, Nov 11 202510am Tue, Nov 11 202511am Tue, Nov 11 202512pm Tue, Nov 11 20251pm Tue, Nov 11 20252pm Tue, Nov 11 20253pm Tue, Nov 11 20254pm Tue, Nov 11 20255pm Tue, Nov 11 20256pm Tue, Nov 11 20257pm Tue, Nov 11 20258pm Tue, Nov 11 20259pm Tue, Nov 11 202510pm Tue, Nov 11 202511pm Tue, Nov 11 202512am Wed, Nov 12 20251am Wed, Nov 12 20252am Wed, Nov 12 20253am Wed, Nov 12 20254am Wed, Nov 12 20255am Wed, Nov 12 20256am Wed, Nov 12 20257am Wed, Nov 12 20258am Wed, Nov 12 20259am Wed, Nov 12 202510am Wed, Nov 12 202511am Wed, Nov 12 202512pm Wed, Nov 12 20251pm Wed, Nov 12 20252pm Wed, Nov 12 20253pm Wed, Nov 12 20254pm Wed, Nov 12 20255pm Wed, Nov 12 20256pm Wed, Nov 12 20257pm Wed, Nov 12 20258pm Wed, Nov 12 20259pm Wed, Nov 12 202510pm Wed, Nov 12 202511pm Wed, Nov 12 202512am Thu, Nov 13 20251am Thu, Nov 13 20252am Thu, Nov 13 20253am Thu, Nov 13 20254am Thu, Nov 13 20255am Thu, Nov 13 20256am Thu, Nov 13 20257am Thu, Nov 13 20258am Thu, Nov 13 20259am Thu, Nov 13 202510am Thu, Nov 13 202511am Thu, Nov 13 202512pm Thu, Nov 13 20251pm Thu, Nov 13 20252pm Thu, Nov 13 20253pm Thu, Nov 13 20254pm Thu, Nov 13 20255pm Thu, Nov 13 20256pm Thu, Nov 13 20257pm Thu, Nov 13 20258pm Thu, Nov 13 20259pm Thu, Nov 13 202510pm Thu, Nov 13 202511pm Thu, Nov 13 202512am Fri, Nov 14 20251am Fri, Nov 14 20252am Fri, Nov 14 20253am Fri, Nov 14 20254am Fri, Nov 14 20255am Fri, Nov 14 20256am Fri, Nov 14 20257am Fri, Nov 14 20258am Fri, Nov 14 20259am Fri, Nov 14 202510am Fri, Nov 14 202511am Fri, Nov 14 202512pm Fri, Nov 14 20251pm Fri, Nov 14 20252pm Fri, Nov 14 20253pm Fri, Nov 14 20254pm Fri, Nov 14 20255pm Fri, Nov 14 20256pm Fri, Nov 14 20257pm Fri, Nov 14 20258pm Fri, Nov 14 20259pm Fri, Nov 14 202510pm Fri, Nov 14 202511pm Fri, Nov 14 202512am Sat, Nov 15 20251am Sat, Nov 15 20252am Sat, Nov 15 20253am Sat, Nov 15 20254am Sat, Nov 15 20255am Sat, Nov 15 2025

Date	11/10						11/11
Hour (EST)	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17
Temperature (°F)	48	46	43	41	40	38	38	37	35	34	33	33	33	33	34	36	37	39	40	41	42	42	42	42
Dewpoint (°F)	42	39	36	34	32	30	29	27	26	25	25	24	24	24	25	25	26	26	26	27	27	28	28	28
Wind Chill (°F)	42	40	36	33	32	29	29	28	25	24	23	22	22	22	23	26	27	29	30	32	33	33	33	33
Surface Wind (mph)	14	14	15	15	15	15	15	15	15	15	15	16	16	16	17	17	18	20	21	21	22	22	22	22
Wind Dir	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W
Gust																29	32	33	34	37	37	37	38	37
Sky Cover (%)	81	79	71	63	55	52	49	46	40	35	30	29	28	27	32	36	41	50	60	70	63	57	51	42
Precipitation Potential (%)	40	6	6	6	3	3	3	4	4	4	2	2	2	10	10	10	16	16	16	16	16	16	8	8
Relative Humidity (%)	80	76	76	76	73	73	70	67	69	69	72	69	69	69	69	64	64	59	57	57	55	57	57	57
Rain	Chc	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	SChc	SChc	SChc	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	SChc	SChc	SChc	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date							11/12
Hour (EST)	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17
Temperature (°F)	43	42	42	41	41	41	40	40	39	38	37	37	37	38	40	41	43	45	47	48	49	49	49	49
Dewpoint (°F)	29	29	29	30	30	29	29	29	28	28	28	28	28	29	30	31	32	32	32	32	33	33	34	34
Wind Chill (°F)	34	33	33	32	32	32	31	31	30	29	28	28	28	30	32	33	36	38	41	42	43	43	43	43
Surface Wind (mph)	21	21	20	20	18	18	17	17	16	16	15	15	14	14	15	15	15	16	16	16	16	15	15	15
Wind Dir	W	W	W	W	W	W	W	W	W	W	SW	SW	SW	SW	SW	SW	SW	SW	W	W	W	W	W	W
Gust	36	34	32	31	30	29					25						25			26		25	25
Sky Cover (%)	34	25	27	28	30	35	41	47	55	63	72	75	79	83	81	79	78	70	63	55	56	57	58	59
Precipitation Potential (%)	8	8	8	8	8	8	8	3	3	3	3	3	3	8	8	8	8	8	8	5	5	5	5	5
Relative Humidity (%)	57	60	60	65	65	62	64	64	64	67	70	70	70	70	67	67	65	60	56	54	54	54	56	56
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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