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Point Forecast: 2 Miles S Washington-Dulles International Airport VA  38.93N 77.45W (Elev. 299 ft)	Last Update: 2:50 pm EDT Oct 16, 2021

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Weather Elements Weather/Precipitation Fire 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 Mixing Height  x100ftx100m Haines Index Lightning Activity Level Trans. Wind  ktmphkm/hm/s Vent Rate (x1000 mph-ft) Atmospheric Dispersion Index Low Visibility Occurrence Risk Index

48-Hour Period Starting: 3pm Sat, Oct 16 20214pm Sat, Oct 16 20215pm Sat, Oct 16 20216pm Sat, Oct 16 20217pm Sat, Oct 16 20218pm Sat, Oct 16 20219pm Sat, Oct 16 202110pm Sat, Oct 16 202111pm Sat, Oct 16 202112am Sun, Oct 17 20211am Sun, Oct 17 20212am Sun, Oct 17 20213am Sun, Oct 17 20214am Sun, Oct 17 20215am Sun, Oct 17 20216am Sun, Oct 17 20217am Sun, Oct 17 20218am Sun, Oct 17 20219am Sun, Oct 17 202110am Sun, Oct 17 202111am Sun, Oct 17 202112pm Sun, Oct 17 20211pm Sun, Oct 17 20212pm Sun, Oct 17 20213pm Sun, Oct 17 20214pm Sun, Oct 17 20215pm Sun, Oct 17 20216pm Sun, Oct 17 20217pm Sun, Oct 17 20218pm Sun, Oct 17 20219pm Sun, Oct 17 202110pm Sun, Oct 17 202111pm Sun, Oct 17 202112am Mon, Oct 18 20211am Mon, Oct 18 20212am Mon, Oct 18 20213am Mon, Oct 18 20214am Mon, Oct 18 20215am Mon, Oct 18 20216am Mon, Oct 18 20217am Mon, Oct 18 20218am Mon, Oct 18 20219am Mon, Oct 18 202110am Mon, Oct 18 202111am Mon, Oct 18 202112pm Mon, Oct 18 20211pm Mon, Oct 18 20212pm Mon, Oct 18 20213pm Mon, Oct 18 20214pm Mon, Oct 18 20215pm Mon, Oct 18 20216pm Mon, Oct 18 20217pm Mon, Oct 18 20218pm Mon, Oct 18 20219pm Mon, Oct 18 202110pm Mon, Oct 18 202111pm Mon, Oct 18 202112am Tue, Oct 19 20211am Tue, Oct 19 20212am Tue, Oct 19 20213am Tue, Oct 19 20214am Tue, Oct 19 20215am Tue, Oct 19 20216am Tue, Oct 19 20217am Tue, Oct 19 20218am Tue, Oct 19 20219am Tue, Oct 19 202110am Tue, Oct 19 202111am Tue, Oct 19 202112pm Tue, Oct 19 20211pm Tue, Oct 19 20212pm Tue, Oct 19 20213pm Tue, Oct 19 20214pm Tue, Oct 19 20215pm Tue, Oct 19 20216pm Tue, Oct 19 20217pm Tue, Oct 19 20218pm Tue, Oct 19 20219pm Tue, Oct 19 202110pm Tue, Oct 19 202111pm Tue, Oct 19 202112am Wed, Oct 20 20211am Wed, Oct 20 20212am Wed, Oct 20 20213am Wed, Oct 20 20214am Wed, Oct 20 20215am Wed, Oct 20 20216am Wed, Oct 20 20217am Wed, Oct 20 20218am Wed, Oct 20 20219am Wed, Oct 20 202110am Wed, Oct 20 202111am Wed, Oct 20 202112pm Wed, Oct 20 20211pm Wed, Oct 20 20212pm Wed, Oct 20 20213pm Wed, Oct 20 20214pm Wed, Oct 20 20215pm Wed, Oct 20 20216pm Wed, Oct 20 20217pm Wed, Oct 20 20218pm Wed, Oct 20 20219pm Wed, Oct 20 202110pm Wed, Oct 20 202111pm Wed, Oct 20 202112am Thu, Oct 21 20211am Thu, Oct 21 20212am Thu, Oct 21 2021

Date	10/16									10/17
Hour (EDT)	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14
Temperature (°F)	68	66	64	62	60	58	56	54	53	53	52	51	50	49	49	48	47	48	51	54	58	60	61	62
Dewpoint (°F)	62	59	57	55	53	50	49	49	48	47	46	44	43	42	42	41	40	40	41	42	42	42	41	40
Wind Chill (°F)													47	46	46	44	43	44
Surface Wind (mph)	14	17	13	10	9	10	8	7	7	7	7	9	8	8	8	8	8	8	10	13	14	15	15	15
Wind Dir	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	W	W	W	NW	NW	NW	NW	NW	NW	NW	NW
Gust	28	32	28	23	22	20														23	25	26	28	29
Sky Cover (%)	97	93	97	88	48	8	5	3	2	2	1	1	1	3	6	3	4	2	5	8	10	19	27	36
Precipitation Potential (%)	82	69	56	43	30	16	3	3	3	3	2	0	0	0	0	0	0	0	0	0	0	0	0	0
Relative Humidity (%)	81	78	78	78	78	75	77	83	83	80	80	77	77	77	77	77	76	74	68	64	55	51	48	44
Rain	Ocnl	Lkly	Lkly	Chc	Chc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date										10/18
Hour (EDT)	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14
Temperature (°F)	62	61	60	58	56	54	53	52	51	50	50	49	49	48	48	47	47	48	51	55	59	61	63	64
Dewpoint (°F)	40	39	39	39	40	40	40	41	41	41	41	41	41	40	40	40	40	41	42	43	43	43	42	41
Wind Chill (°F)										47	47	46	46	45	45	44	44	45
Surface Wind (mph)	15	15	14	11	9	7	7	7	7	7	7	7	7	7	7	6	6	7	8	9	11	13	13	14
Wind Dir	NW	NW	NW	NW	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	NW	NW	NW	NW
Gust	29	28	26	22																	20	21	22	23
Sky Cover (%)	31	27	22	17	13	8	7	6	5	4	4	3	4	5	6	5	5	4	5	6	7	10	12	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 (%)	44	44	46	49	55	59	61	66	68	71	71	74	74	74	74	76	76	77	71	64	55	51	46	43
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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