Point Forecast: 2 Miles S Washington-Dulles International Airport VA  38.93N 77.45W (Elev. 91 m)	Last Update: 7:29 pm EDT Jun 30, 2025

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Date	06/30		07/01
Hour (EDT)	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21
Temperature (°C)	27	26	26	25	24	24	24	24	24	24	26	27	29	30	31	31	31	29	28	27	27	27	26	24
Dewpoint (°C)	24	23	23	23	23	23	23	23	23	23	24	24	24	24	24	24	24	24	24	24	24	24	24	23
Heat Index (°C)	29	26	26	25	24	24	24	24	24	24	26	31	34	36	37	37	37	34	32	30	29	29	26	24
Surface Wind (mph)	6	6	6	6	6	6	6	6	6	6	6	6	6	6	7	7	8	8	7	7	6	6	6	5
Wind Dir	S	S	SW	S	S	S	S	S	S	S	SW	SW	SW	SW	SW	SW	SW	NW	NW	W	W	S	SW	SW
Gust
Sky Cover (%)	55	61	65	38	44	46	52	53	56	27	30	32	14	43	52	60	77	87	91	95	86	87	80	84
Precipitation Potential (%)	30	25	19	14	11	8	9	8	7	7	9	9	7	22	28	40	65	80	83	67	62	61	55	55
Relative Humidity (%)	85	88	88	90	94	94	97	94	94	97	91	85	77	72	68	68	68	75	82	88	85	85	91	94
Rain	Chc	Chc	SChc	--	--	--	--	--	--	--	--	--	--	SChc	Chc	Chc	Lkly	Ocnl	Ocnl	Lkly	Lkly	Lkly	Lkly	Lkly
Thunder	Chc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	SChc	Chc	Chc	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Chc	Chc
Date			07/02
Hour (EDT)	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21
Temperature (°C)	24	23	23	23	22	22	22	22	22	22	22	23	24	26	27	28	29	29	29	28	28	27	27	26
Dewpoint (°C)	23	23	23	22	22	22	22	22	22	22	22	22	23	23	23	22	22	22	22	22	22	23	23	23
Heat Index (°C)	24												24	26	30	31	32	32	32	31	31	30	29	26
Surface Wind (mph)	3	2	2	2	2	2	3	3	3	5	5	5	6	6	6	6	6	6	5	5	3	3	2	2
Wind Dir	SW	SW	SW	SW	SW	SW	W	W	W	W	NW	NW	NW	NW	NW	NW	NW	NW	W	SW	SW	SW	S	SW
Gust
Sky Cover (%)	84	83	82	82	81	80	79	78	69	61	52	50	48	46	42	39	35	35	36	36	35	35	23	24
Precipitation Potential (%)	55	55	55	55	23	23	23	23	23	23	15	15	15	15	15	15	19	19	19	19	19	19	6	6
Relative Humidity (%)	94	97	100	97	100	100	100	100	100	100	100	93	90	82	77	70	67	67	67	70	72	77	79	85
Rain	Lkly	Lkly	Lkly	Lkly	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	--	--
Thunder	Chc	Chc	Chc	Chc	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	--	--

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