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Point Forecast: 2 Miles S Washington-Dulles International Airport VA  38.93N 77.45W (Elev. 91 m)	Last Update: 4:31 pm EDT May 25, 2020

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Weather Elements Weather/Precipitation Fire Weather Temperature (°C) Dewpoint (°C) Heat Index (°C) 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-m) Atmospheric Dispersion Index Low Visibility Occurrence Risk Index

48-Hour Period Starting: 6pm Mon, May 25 20207pm Mon, May 25 20208pm Mon, May 25 20209pm Mon, May 25 202010pm Mon, May 25 202011pm Mon, May 25 202012am Tue, May 26 20201am Tue, May 26 20202am Tue, May 26 20203am Tue, May 26 20204am Tue, May 26 20205am Tue, May 26 20206am Tue, May 26 20207am Tue, May 26 20208am Tue, May 26 20209am Tue, May 26 202010am Tue, May 26 202011am Tue, May 26 202012pm Tue, May 26 20201pm Tue, May 26 20202pm Tue, May 26 20203pm Tue, May 26 20204pm Tue, May 26 20205pm Tue, May 26 20206pm Tue, May 26 20207pm Tue, May 26 20208pm Tue, May 26 20209pm Tue, May 26 202010pm Tue, May 26 202011pm Tue, May 26 202012am Wed, May 27 20201am Wed, May 27 20202am Wed, May 27 20203am Wed, May 27 20204am Wed, May 27 20205am Wed, May 27 20206am Wed, May 27 20207am Wed, May 27 20208am Wed, May 27 20209am Wed, May 27 202010am Wed, May 27 202011am Wed, May 27 202012pm Wed, May 27 20201pm Wed, May 27 20202pm Wed, May 27 20203pm Wed, May 27 20204pm Wed, May 27 20205pm Wed, May 27 20206pm Wed, May 27 20207pm Wed, May 27 20208pm Wed, May 27 20209pm Wed, May 27 202010pm Wed, May 27 202011pm Wed, May 27 202012am Thu, May 28 20201am Thu, May 28 20202am Thu, May 28 20203am Thu, May 28 20204am Thu, May 28 20205am Thu, May 28 20206am Thu, May 28 20207am Thu, May 28 20208am Thu, May 28 20209am Thu, May 28 202010am Thu, May 28 202011am Thu, May 28 202012pm Thu, May 28 20201pm Thu, May 28 20202pm Thu, May 28 20203pm Thu, May 28 20204pm Thu, May 28 20205pm Thu, May 28 20206pm Thu, May 28 20207pm Thu, May 28 20208pm Thu, May 28 20209pm Thu, May 28 202010pm Thu, May 28 202011pm Thu, May 28 202012am Fri, May 29 20201am Fri, May 29 20202am Fri, May 29 20203am Fri, May 29 20204am Fri, May 29 20205am Fri, May 29 20206am Fri, May 29 20207am Fri, May 29 20208am Fri, May 29 20209am Fri, May 29 202010am Fri, May 29 202011am Fri, May 29 202012pm Fri, May 29 20201pm Fri, May 29 20202pm Fri, May 29 20203pm Fri, May 29 20204pm Fri, May 29 20205pm Fri, May 29 20206pm Fri, May 29 20207pm Fri, May 29 20208pm Fri, May 29 20209pm Fri, May 29 202010pm Fri, May 29 202011pm Fri, May 29 202012am Sat, May 30 20201am Sat, May 30 20202am Sat, May 30 20203am Sat, May 30 20204am Sat, May 30 20205am Sat, May 30 2020

Date	05/25						05/26
Hour (EDT)	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17
Temperature (°C)	24	24	23	21	19	18	18	17	17	16	16	16	16	16	17	19	20	22	23	24	26	26	27	26
Dewpoint (°C)	17	17	16	17	17	16	16	16	16	16	16	15	15	16	16	17	17	17	17	17	16	17	17	16
Heat Index (°C)	24	24																		24	26	26	27	26
Surface Wind (mph)	5	5	5	5	3	3	3	3	3	3	3	3	3	3	3	3	5	5	5	6	6	7	8	8
Wind Dir	S	S	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE
Gust
Sky Cover (%)	38	37	36	35	34	34	34	36	41	48	56	62	65	65	64	63	62	58	50	42	35	33	33	35
Precipitation Potential (%)	3	3	2	2	2	2	2	2	2	2	2	2	2	2	1	1	1	1	1	1	1	1	1	1
Relative Humidity (%)	62	64	66	76	84	87	90	90	93	97	100	96	96	97	90	87	81	71	66	62	56	56	54	54
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date							05/27
Hour (EDT)	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17
Temperature (°C)	26	24	23	22	21	19	18	18	17	17	17	17	17	17	18	19	20	21	22	23	24	24	25	25
Dewpoint (°C)	16	16	17	17	17	17	17	16	16	16	16	16	16	17	17	17	17	17	17	17	17	17	17	17
Heat Index (°C)	26	24																			24	24	25	25
Surface Wind (mph)	8	7	7	7	6	6	5	5	3	3	3	3	3	3	3	3	5	5	5	5	6	7	8	8
Wind Dir	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE
Gust
Sky Cover (%)	38	39	39	39	38	37	43	55	61	63	67	69	73	80	83	82	79	77	76	73	72	70	65	63
Precipitation Potential (%)	1	1	5	5	5	5	5	5	5	5	5	5	5	5	17	17	17	17	17	17	15	15	15	15
Relative Humidity (%)	56	60	66	71	78	84	90	90	93	93	93	93	93	97	93	87	84	78	73	69	66	64	62	62
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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