Point Forecast: 2 Miles S Washington-Dulles International Airport VA  38.93N 77.45W (Elev. 299 ft)	Last Update: 1:30 am EDT Sep 9, 2024

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Weather Elements Fire Weather Aviation 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 Ceiling Height Visibility

48-Hour Period Starting: 2am Mon, Sep 9 20243am Mon, Sep 9 20244am Mon, Sep 9 20245am Mon, Sep 9 20246am Mon, Sep 9 20247am Mon, Sep 9 20248am Mon, Sep 9 20249am Mon, Sep 9 202410am Mon, Sep 9 202411am Mon, Sep 9 202412pm Mon, Sep 9 20241pm Mon, Sep 9 20242pm Mon, Sep 9 20243pm Mon, Sep 9 20244pm Mon, Sep 9 20245pm Mon, Sep 9 20246pm Mon, Sep 9 20247pm Mon, Sep 9 20248pm Mon, Sep 9 20249pm Mon, Sep 9 202410pm Mon, Sep 9 202411pm Mon, Sep 9 202412am Tue, Sep 10 20241am Tue, Sep 10 20242am Tue, Sep 10 20243am Tue, Sep 10 20244am Tue, Sep 10 20245am Tue, Sep 10 20246am Tue, Sep 10 20247am Tue, Sep 10 20248am Tue, Sep 10 20249am Tue, Sep 10 202410am Tue, Sep 10 202411am Tue, Sep 10 202412pm Tue, Sep 10 20241pm Tue, Sep 10 20242pm Tue, Sep 10 20243pm Tue, Sep 10 20244pm Tue, Sep 10 20245pm Tue, Sep 10 20246pm Tue, Sep 10 20247pm Tue, Sep 10 20248pm Tue, Sep 10 20249pm Tue, Sep 10 202410pm Tue, Sep 10 202411pm Tue, Sep 10 202412am Wed, Sep 11 20241am Wed, Sep 11 20242am Wed, Sep 11 20243am Wed, Sep 11 20244am Wed, Sep 11 20245am Wed, Sep 11 20246am Wed, Sep 11 20247am Wed, Sep 11 20248am Wed, Sep 11 20249am Wed, Sep 11 202410am Wed, Sep 11 202411am Wed, Sep 11 202412pm Wed, Sep 11 20241pm Wed, Sep 11 20242pm Wed, Sep 11 20243pm Wed, Sep 11 20244pm Wed, Sep 11 20245pm Wed, Sep 11 20246pm Wed, Sep 11 20247pm Wed, Sep 11 20248pm Wed, Sep 11 20249pm Wed, Sep 11 202410pm Wed, Sep 11 202411pm Wed, Sep 11 202412am Thu, Sep 12 20241am Thu, Sep 12 20242am Thu, Sep 12 20243am Thu, Sep 12 20244am Thu, Sep 12 20245am Thu, Sep 12 20246am Thu, Sep 12 20247am Thu, Sep 12 20248am Thu, Sep 12 20249am Thu, Sep 12 202410am Thu, Sep 12 202411am Thu, Sep 12 202412pm Thu, Sep 12 20241pm Thu, Sep 12 20242pm Thu, Sep 12 20243pm Thu, Sep 12 20244pm Thu, Sep 12 20245pm Thu, Sep 12 20246pm Thu, Sep 12 20247pm Thu, Sep 12 20248pm Thu, Sep 12 20249pm Thu, Sep 12 202410pm Thu, Sep 12 202411pm Thu, Sep 12 202412am Fri, Sep 13 20241am Fri, Sep 13 20242am Fri, Sep 13 20243am Fri, Sep 13 20244am Fri, Sep 13 20245am Fri, Sep 13 20246am Fri, Sep 13 20247am Fri, Sep 13 20248am Fri, Sep 13 20249am Fri, Sep 13 202410am Fri, Sep 13 202411am Fri, Sep 13 202412pm Fri, Sep 13 20241pm Fri, Sep 13 2024

Date	09/09																						09/10
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)	47	46	45	45	43	42	47	55	62	69	72	74	75	77	78	77	75	74	67	64	61	59	57	57
Dewpoint (°F)	42	41	40	39	39	40	41	41	40	39	38	38	38	39	40	42	44	46	48	48	49	49	49	49
Heat Index (°F)													75	77	78	77	75
Surface Wind (mph)	2	2	2	2	2	2	2	3	3	3	5	5	6	7	7	7	6	6	5	3	2	2	2	2
Wind Dir	W	NW	NW	NW	NW	NW	NW	NW	W	W	W	W	SW	SW	SW	SW	SW	SW	S	S	SW	SW	SW	SW
Gust
Sky Cover (%)	5	5	6	6	6	7	7	6	4	3	4	4	5	5	4	5	3	3	4	3	2	4	2	0
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 (%)	83	83	82	79	86	93	79	59	44	33	29	27	26	25	26	29	33	37	50	56	65	69	75	75
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date																							09/11
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)	55	54	52	52	51	51	54	59	66	73	77	80	81	83	84	83	81	78	74	71	68	65	63	61
Dewpoint (°F)	49	49	48	48	47	47	48	49	51	53	54	55	55	55	56	56	56	56	56	56	56	56	56	56
Heat Index (°F)											77	80	81	82	83	82	81	78
Surface Wind (mph)	2	2	2	2	2	3	3	3	3	5	5	5	5	5	3	3	3	2	2	2	1	1	1	1
Wind Dir	W	W	W	W	W	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	N	N	NE	NE	NE	NE	NE	NE
Gust
Sky Cover (%)	1	0	1	2	2	2	1	2	1	2	3	3	4	6	7	9	11	13	15	14	13	12	11	10
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 (%)	80	83	86	86	86	86	80	69	58	49	45	42	41	38	38	40	42	47	53	59	65	73	78	84
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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