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Point Forecast: Washington-Dulles International Airport VA  38.95N 77.44W (Elev. 285 ft)	Last Update: 10:34 am EDT Oct 27, 2020

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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: 12pm Tue, Oct 27 20201pm Tue, Oct 27 20202pm Tue, Oct 27 20203pm Tue, Oct 27 20204pm Tue, Oct 27 20205pm Tue, Oct 27 20206pm Tue, Oct 27 20207pm Tue, Oct 27 20208pm Tue, Oct 27 20209pm Tue, Oct 27 202010pm Tue, Oct 27 202011pm Tue, Oct 27 202012am Wed, Oct 28 20201am Wed, Oct 28 20202am Wed, Oct 28 20203am Wed, Oct 28 20204am Wed, Oct 28 20205am Wed, Oct 28 20206am Wed, Oct 28 20207am Wed, Oct 28 20208am Wed, Oct 28 20209am Wed, Oct 28 202010am Wed, Oct 28 202011am Wed, Oct 28 202012pm Wed, Oct 28 20201pm Wed, Oct 28 20202pm Wed, Oct 28 20203pm Wed, Oct 28 20204pm Wed, Oct 28 20205pm Wed, Oct 28 20206pm Wed, Oct 28 20207pm Wed, Oct 28 20208pm Wed, Oct 28 20209pm Wed, Oct 28 202010pm Wed, Oct 28 202011pm Wed, Oct 28 202012am Thu, Oct 29 20201am Thu, Oct 29 20202am Thu, Oct 29 20203am Thu, Oct 29 20204am Thu, Oct 29 20205am Thu, Oct 29 20206am Thu, Oct 29 20207am Thu, Oct 29 20208am Thu, Oct 29 20209am Thu, Oct 29 202010am Thu, Oct 29 202011am Thu, Oct 29 202012pm Thu, Oct 29 20201pm Thu, Oct 29 20202pm Thu, Oct 29 20203pm Thu, Oct 29 20204pm Thu, Oct 29 20205pm Thu, Oct 29 20206pm Thu, Oct 29 20207pm Thu, Oct 29 20208pm Thu, Oct 29 20209pm Thu, Oct 29 202010pm Thu, Oct 29 202011pm Thu, Oct 29 202012am Fri, Oct 30 20201am Fri, Oct 30 20202am Fri, Oct 30 20203am Fri, Oct 30 20204am Fri, Oct 30 20205am Fri, Oct 30 20206am Fri, Oct 30 20207am Fri, Oct 30 20208am Fri, Oct 30 20209am Fri, Oct 30 202010am Fri, Oct 30 202011am Fri, Oct 30 202012pm Fri, Oct 30 20201pm Fri, Oct 30 20202pm Fri, Oct 30 20203pm Fri, Oct 30 20204pm Fri, Oct 30 20205pm Fri, Oct 30 20206pm Fri, Oct 30 20207pm Fri, Oct 30 20208pm Fri, Oct 30 20209pm Fri, Oct 30 202010pm Fri, Oct 30 202011pm Fri, Oct 30 202012am Sat, Oct 31 20201am Sat, Oct 31 20202am Sat, Oct 31 20203am Sat, Oct 31 20204am Sat, Oct 31 20205am Sat, Oct 31 20206am Sat, Oct 31 20207am Sat, Oct 31 20208am Sat, Oct 31 20209am Sat, Oct 31 202010am Sat, Oct 31 202011am Sat, Oct 31 202012pm Sat, Oct 31 20201pm Sat, Oct 31 20202pm Sat, Oct 31 20203pm Sat, Oct 31 20204pm Sat, Oct 31 20205pm Sat, Oct 31 20206pm Sat, Oct 31 20207pm Sat, Oct 31 20208pm Sat, Oct 31 20209pm Sat, Oct 31 202010pm Sat, Oct 31 202011pm Sat, Oct 31 2020

Date	10/27												10/28
Hour (EDT)	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11
Temperature (°F)	61	62	63	63	63	62	61	59	57	56	56	56	55	55	55	55	55	54	54	54	55	57	59	60
Dewpoint (°F)	51	50	49	49	49	50	50	50	52	53	53	53	53	54	53	53	53	54	53	53	54	55	56	56
Wind Chill (°F)
Surface Wind (mph)	8	7	6	5	3	3	3	5	5	5	3	3	3	2	2	2	3	3	3	3	3	3	3	3
Wind Dir	N	N	N	N	NW	NW	NW	N	E	NE	NE	NE	NE	E	E	E	SE	SE	S	SW	W	W	NW	NW
Gust
Sky Cover (%)	79	75	72	74	77	79	81	85	86	88	91	93	92	90	89	88	87	86	86	85	84	83	81	80
Precipitation Potential (%)	9	9	11	11	11	11	11	11	32	32	32	32	32	32	21	21	21	21	21	21	10	10	10	10
Relative Humidity (%)	70	65	60	60	60	65	67	72	83	90	90	90	93	96	93	93	93	100	96	96	96	93	90	87
Rain	--	--	--	--	--	--	--	--	Chc	Chc	Chc	Chc	Chc	Chc	SChc	SChc	SChc	SChc	SChc	SChc	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Fog	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date													10/29
Hour (EDT)	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11
Temperature (°F)	62	64	66	66	66	65	63	62	60	59	58	58	58	58	58	58	58	58	58	58	58	59	60	61
Dewpoint (°F)	56	56	56	55	55	56	56	56	56	56	57	57	57	57	57	57	57	57	57	58	58	58	59	59
Wind Chill (°F)
Surface Wind (mph)	3	5	5	5	5	5	5	5	5	5	3	3	3	2	2	2	3	3	3	5	5	6	7	8
Wind Dir	NW	W	W	W	SW	SW	SW	SE	SE	SE	SE	SE	SE	E	E	E	E	E	E	E	E	SE	SE	SE
Gust
Sky Cover (%)	77	70	67	72	81	86	84	79	77	78	79	80	83	88	90	91	93	94	94	95	95	96	97	97
Precipitation Potential (%)	10	10	7	7	7	7	7	7	22	22	22	22	22	22	96	96	96	96	96	96	100	100	100	100
Relative Humidity (%)	81	75	70	68	68	73	78	81	87	90	96	96	96	96	96	96	96	96	96	100	100	96	96	93
Rain	--	--	--	--	--	--	--	--	SChc	SChc	SChc	SChc	SChc	SChc	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Fog	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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