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Point Forecast: 2 Miles S Washington-Dulles International Airport VA  38.93N 77.45W (Elev. 91 m)	Last Update: 10:31 am EDT May 27, 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: 12pm 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 20206am Sat, May 30 20207am Sat, May 30 20208am Sat, May 30 20209am Sat, May 30 202010am Sat, May 30 202011am Sat, May 30 202012pm Sat, May 30 20201pm Sat, May 30 20202pm Sat, May 30 20203pm Sat, May 30 20204pm Sat, May 30 20205pm Sat, May 30 20206pm Sat, May 30 20207pm Sat, May 30 20208pm Sat, May 30 20209pm Sat, May 30 202010pm Sat, May 30 202011pm Sat, May 30 202012am Sun, May 31 20201am Sun, May 31 20202am Sun, May 31 20203am Sun, May 31 20204am Sun, May 31 20205am Sun, May 31 20206am Sun, May 31 20207am Sun, May 31 20208am Sun, May 31 20209am Sun, May 31 202010am Sun, May 31 202011am Sun, May 31 202012pm Sun, May 31 20201pm Sun, May 31 20202pm Sun, May 31 20203pm Sun, May 31 20204pm Sun, May 31 20205pm Sun, May 31 20206pm Sun, May 31 20207pm Sun, May 31 20208pm Sun, May 31 20209pm Sun, May 31 202010pm Sun, May 31 202011pm Sun, May 31 2020

Date	05/27												05/28
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 (°C)	22	23	24	25	26	26	26	25	23	22	22	21	21	21	21	20	20	20	20	20	21	22	22	23
Dewpoint (°C)	17	18	18	18	18	17	17	17	17	18	18	19	19	19	19	19	19	19	20	20	20	21	21	21
Heat Index (°C)			24	25	26	26	26	25
Surface Wind (mph)	7	7	8	8	8	8	8	8	8	8	9	9	9	10	10	10	11	11	11	11	11	11	10	10
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	S
Gust
Sky Cover (%)	88	86	87	82	78	73	76	81	82	85	92	95	96	97	97	97	98	98	97	96	95	95	94	94
Precipitation Potential (%)	1	1	13	13	13	20	20	20	44	44	44	71	71	71	71	71	71	76	76	76	61	61	61	58
Relative Humidity (%)	73	71	66	64	62	58	60	62	69	79	81	90	90	93	93	97	97	97	100	100	97	93	90	87
Rain	--	--	--	--	--	SChc	SChc	SChc	Chc	Chc	Chc	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Ocnl	Ocnl	Ocnl	Lkly	Lkly	Lkly	Lkly
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date													05/29
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 (°C)	24	26	27	27	28	27	27	27	26	25	24	23	23	22	22	22	22	22	22	22	23	23	24	26
Dewpoint (°C)	22	22	22	22	22	21	21	21	21	21	21	21	21	22	22	22	22	22	22	22	22	22	22	22
Heat Index (°C)	24	26	28	29	30	29	28	28	26	25	24												24	26
Surface Wind (mph)	11	11	13	13	13	11	10	10	9	9	9	9	8	7	7	8	8	9	8	8	7	7	8	8
Wind Dir	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S
Gust
Sky Cover (%)	91	86	83	81	78	76	74	69	66	65	62	61	63	67	69	73	80	83	83	82	82	79	72	69
Precipitation Potential (%)	58	58	53	53	53	53	53	53	41	41	41	41	41	41	36	36	36	36	36	36	44	44	44	44
Relative Humidity (%)	85	79	74	72	69	69	72	72	74	79	82	87	90	97	97	97	97	97	97	97	93	90	85	79
Rain	Lkly	Lkly	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc
Thunder	--	--	Chc	Chc	Chc	Chc	Chc	Chc	SChc	SChc	SChc	SChc	SChc	SChc	--	--	--	--	--	--	SChc	SChc	SChc	SChc

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