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Point Forecast: 2 Miles S Washington-Dulles International Airport VA  38.93N 77.45W (Elev. 299 ft)	Last Update: 1:31 am EDT Aug 12, 2020

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Weather Elements Weather/Precipitation Fire 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 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: 2am Wed, Aug 12 20203am Wed, Aug 12 20204am Wed, Aug 12 20205am Wed, Aug 12 20206am Wed, Aug 12 20207am Wed, Aug 12 20208am Wed, Aug 12 20209am Wed, Aug 12 202010am Wed, Aug 12 202011am Wed, Aug 12 202012pm Wed, Aug 12 20201pm Wed, Aug 12 20202pm Wed, Aug 12 20203pm Wed, Aug 12 20204pm Wed, Aug 12 20205pm Wed, Aug 12 20206pm Wed, Aug 12 20207pm Wed, Aug 12 20208pm Wed, Aug 12 20209pm Wed, Aug 12 202010pm Wed, Aug 12 202011pm Wed, Aug 12 202012am Thu, Aug 13 20201am Thu, Aug 13 20202am Thu, Aug 13 20203am Thu, Aug 13 20204am Thu, Aug 13 20205am Thu, Aug 13 20206am Thu, Aug 13 20207am Thu, Aug 13 20208am Thu, Aug 13 20209am Thu, Aug 13 202010am Thu, Aug 13 202011am Thu, Aug 13 202012pm Thu, Aug 13 20201pm Thu, Aug 13 20202pm Thu, Aug 13 20203pm Thu, Aug 13 20204pm Thu, Aug 13 20205pm Thu, Aug 13 20206pm Thu, Aug 13 20207pm Thu, Aug 13 20208pm Thu, Aug 13 20209pm Thu, Aug 13 202010pm Thu, Aug 13 202011pm Thu, Aug 13 202012am Fri, Aug 14 20201am Fri, Aug 14 20202am Fri, Aug 14 20203am Fri, Aug 14 20204am Fri, Aug 14 20205am Fri, Aug 14 20206am Fri, Aug 14 20207am Fri, Aug 14 20208am Fri, Aug 14 20209am Fri, Aug 14 202010am Fri, Aug 14 202011am Fri, Aug 14 202012pm Fri, Aug 14 20201pm Fri, Aug 14 20202pm Fri, Aug 14 20203pm Fri, Aug 14 20204pm Fri, Aug 14 20205pm Fri, Aug 14 20206pm Fri, Aug 14 20207pm Fri, Aug 14 20208pm Fri, Aug 14 20209pm Fri, Aug 14 202010pm Fri, Aug 14 202011pm Fri, Aug 14 202012am Sat, Aug 15 20201am Sat, Aug 15 20202am Sat, Aug 15 20203am Sat, Aug 15 20204am Sat, Aug 15 20205am Sat, Aug 15 20206am Sat, Aug 15 20207am Sat, Aug 15 20208am Sat, Aug 15 20209am Sat, Aug 15 202010am Sat, Aug 15 202011am Sat, Aug 15 202012pm Sat, Aug 15 20201pm Sat, Aug 15 20202pm Sat, Aug 15 20203pm Sat, Aug 15 20204pm Sat, Aug 15 20205pm Sat, Aug 15 20206pm Sat, Aug 15 20207pm Sat, Aug 15 20208pm Sat, Aug 15 20209pm Sat, Aug 15 202010pm Sat, Aug 15 202011pm Sat, Aug 15 202012am Sun, Aug 16 20201am Sun, Aug 16 20202am Sun, Aug 16 20203am Sun, Aug 16 20204am Sun, Aug 16 20205am Sun, Aug 16 20206am Sun, Aug 16 20207am Sun, Aug 16 20208am Sun, Aug 16 20209am Sun, Aug 16 202010am Sun, Aug 16 202011am Sun, Aug 16 202012pm Sun, Aug 16 20201pm Sun, Aug 16 2020

Date	08/12																						08/13
Hour (EDT)	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01
Temperature (°F)	75	74	74	74	73	73	75	79	84	89	91	92	92	91	90	88	85	82	80	78	76	76	75	74
Dewpoint (°F)	74	74	73	73	73	73	73	73	74	74	74	74	74	74	74	74	74	74	74	74	74	74	74	73
Heat Index (°F)	75						75	79	91	98	101	102	102	101	99	97	93	88	84	78	76	76	75
Surface Wind (mph)	5	5	3	3	3	3	3	3	5	3	2	2	5	6	6	6	5	5	5	5	3	3	2	1
Wind Dir	S	SW	SW	SW	W	W	NW	NW	N	N	NE	SE	SE	SE	SE	SE	SE	E	E	E	SE	SE	SE	E
Gust
Sky Cover (%)	60	61	62	61	62	61	60	58	58	59	59	68	76	80	82	82	83	84	87	89	90	91	89	86
Precipitation Potential (%)	10	10	10	10	10	10	10	10	10	10	66	66	66	66	66	66	66	66	49	49	49	49	49	49
Relative Humidity (%)	97	100	97	97	100	100	94	82	72	61	58	56	56	58	60	63	70	77	82	88	94	94	97	97
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Chc	Chc	Chc	Chc	Chc
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Chc	Chc	Chc	Chc	Chc
Date																							08/14
Hour (EDT)	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01
Temperature (°F)	73	72	72	71	71	71	72	73	75	78	80	82	84	84	83	82	80	78	76	75	73	72	71	71
Dewpoint (°F)	73	72	72	71	71	71	72	73	74	74	74	73	72	72	72	73	73	73	73	73	72	72	71	71
Heat Index (°F)									75	78	84	87	90	90	88	87	84	78	76	75
Surface Wind (mph)	2	3	3	3	3	3	3	3	5	5	5	5	5	6	7	7	7	6	5	5	3	3	2	1
Wind Dir	NE	N	N	N	N	NE	NE	NE	NE	NE	NE	NE	NE	E	E	E	E	E	E	E	E	E	E	NE
Gust
Sky Cover (%)	85	85	87	89	90	91	92	93	93	93	91	89	88	88	89	89	89	88	87	86	86	86	85	84
Precipitation Potential (%)	49	49	49	49	49	49	68	68	68	68	55	55	55	55	55	55	43	43	43	43	43	43	38	38
Relative Humidity (%)	100	100	100	100	100	100	100	100	97	88	82	74	67	67	70	74	79	85	90	94	97	100	100	100
Rain	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc
Thunder	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Chc	Chc	Chc	Chc	Chc	Chc	SChc	SChc

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