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Point Forecast: Reston VA  38.95N 77.36W (Elev. 446 ft)	Last Update: 12:26 am EDT Oct 19, 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: 1am 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 20213am Thu, Oct 21 20214am Thu, Oct 21 20215am Thu, Oct 21 20216am Thu, Oct 21 20217am Thu, Oct 21 20218am Thu, Oct 21 20219am Thu, Oct 21 202110am Thu, Oct 21 202111am Thu, Oct 21 202112pm Thu, Oct 21 20211pm Thu, Oct 21 20212pm Thu, Oct 21 20213pm Thu, Oct 21 20214pm Thu, Oct 21 20215pm Thu, Oct 21 20216pm Thu, Oct 21 20217pm Thu, Oct 21 20218pm Thu, Oct 21 20219pm Thu, Oct 21 202110pm Thu, Oct 21 202111pm Thu, Oct 21 202112am Fri, Oct 22 20211am Fri, Oct 22 20212am Fri, Oct 22 20213am Fri, Oct 22 20214am Fri, Oct 22 20215am Fri, Oct 22 20216am Fri, Oct 22 20217am Fri, Oct 22 20218am Fri, Oct 22 20219am Fri, Oct 22 202110am Fri, Oct 22 202111am Fri, Oct 22 202112pm Fri, Oct 22 20211pm Fri, Oct 22 20212pm Fri, Oct 22 20213pm Fri, Oct 22 20214pm Fri, Oct 22 20215pm Fri, Oct 22 20216pm Fri, Oct 22 20217pm Fri, Oct 22 20218pm Fri, Oct 22 20219pm Fri, Oct 22 202110pm Fri, Oct 22 202111pm Fri, Oct 22 202112am Sat, Oct 23 20211am Sat, Oct 23 20212am Sat, Oct 23 20213am Sat, Oct 23 20214am Sat, Oct 23 20215am Sat, Oct 23 20216am Sat, Oct 23 20217am Sat, Oct 23 20218am Sat, Oct 23 20219am Sat, Oct 23 202110am Sat, Oct 23 202111am Sat, Oct 23 202112pm Sat, Oct 23 2021

Date	10/19																							10/20
Hour (EDT)	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00
Temperature (°F)	48	48	47	46	45	44	43	44	48	54	59	63	65	67	69	70	69	67	63	60	58	57	55	55
Dewpoint (°F)	38	38	38	38	37	37	37	38	41	42	44	44	45	45	43	44	45	45	45	45	44	44	45	45
Wind Chill (°F)	45	45	45	44	43	41	40	41	45
Surface Wind (mph)	6	6	5	5	5	5	5	5	6	8	9	10	9	10	10	9	8	7	5	5	6	5	5	5
Wind Dir	W	W	NW	NW	NW	NW	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W
Gust
Sky Cover (%)	3	5	4	3	2	1	1	2	3	3	5	5	7	9	7	5	6	5	6	14	4	4	9	26
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 (%)	68	68	71	73	73	76	79	79	77	64	57	50	48	45	39	39	42	45	52	58	59	62	69	69
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date																								10/21
Hour (EDT)	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00
Temperature (°F)	54	54	53	53	52	52	51	51	55	60	66	69	70	71	72	72	71	68	65	62	60	59	58	57
Dewpoint (°F)	45	44	44	44	44	43	44	44	45	47	49	49	49	49	49	49	49	49	49	49	49	49	49	48
Wind Chill (°F)
Surface Wind (mph)	6	6	6	6	6	6	6	6	6	7	8	8	8	8	7	7	6	5	5	3	3	3	3	3
Wind Dir	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	SW	SW	SW	SW	SW	SW	SW
Gust
Sky Cover (%)	23	34	43	39	28	19	7	3	3	3	3	4	4	5	5	4	5	5	6	7	8	9	9	13
Precipitation Potential (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	2	2	2	2	2
Relative Humidity (%)	71	69	71	71	74	71	77	77	69	62	54	49	47	46	44	44	46	51	56	62	67	69	72	72
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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