Point Forecast: 2 Miles S Washington-Dulles International Airport VA  38.93N 77.45W (Elev. 299 ft)	Last Update: 7:30 am EDT Jul 3, 2025

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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 Low Visibility Occurrence Risk Index Ceiling Height Visibility

48-Hour Period Starting: 9am Thu, Jul 3 202510am Thu, Jul 3 202511am Thu, Jul 3 202512pm Thu, Jul 3 20251pm 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 2025

Date	07/03															07/04
Hour (EDT)	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08
Temperature (°F)	78	81	84	86	87	88	88	88	87	86	86	83	79	77	75	74	72	71	69	68	67	66	67	71
Dewpoint (°F)	69	70	69	69	68	68	68	68	68	68	68	69	69	69	68	67	67	66	65	65	64	64	64	65
Heat Index (°F)	78	85	88	90	91	92	92	92	91	89	89	87	79	77	75
Surface Wind (mph)	3	5	6	6	6	6	6	6	6	6	5	5	3	3	5	5	5	5	5	5	5	5	5	5
Wind Dir	NW	NW	NW	NW	NW	NW	W	W	W	NW	NW	W	NW	NW	NW	NW	NW	NW	N	N	N	N	N	N
Gust
Sky Cover (%)	4	2	10	6	10	12	18	20	27	20	22	15	20	12	16	1	1	2	2	3	4	9	1	1
Precipitation Potential (%)	0	0	0	0	0	0	0	1	5	6	8	9	9	9	6	3	0	0	0	0	0	0	0	0
Relative Humidity (%)	74	69	61	57	53	52	52	52	53	55	55	63	72	76	79	79	84	84	87	90	90	93	90	81
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date																07/05
Hour (EDT)	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08
Temperature (°F)	75	78	80	82	84	85	86	86	85	84	82	80	77	75	72	70	69	68	66	65	65	66	67	70
Dewpoint (°F)	65	64	63	63	63	63	63	63	63	64	64	65	65	64	64	64	64	64	63	62	62	63	64	65
Heat Index (°F)	75	78	81	83	85	86	87	87	86	85	83	82	77	75
Surface Wind (mph)	5	5	6	6	6	6	6	5	5	5	3	3	2	2	1	1	1	1	1	1	1	1	1	1
Wind Dir	N	N	N	N	N	N	N	N	N	N	N	NE	NE	E	E	E	SE	SE	E	NE	N	NE	E	SE
Gust
Sky Cover (%)	0	2	3	3	4	4	6	9	11	9	8	6	6	6	6	6	5	5	9	14	18	17	16	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 (%)	71	62	56	53	49	48	46	46	48	51	55	60	67	69	76	81	84	87	90	90	90	90	90	84
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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