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Point Forecast: 2 Miles S Washington-Dulles International Airport VA  38.93N 77.45W (Elev. 91 m)	Last Update: 4:30 am EDT Apr 25, 2024

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Weather Elements Fire Weather Aviation Weather Temperature (°C) Dewpoint (°C) Wind Chill (°C) 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-m) Atmospheric Dispersion Index Low Visibility Occurrence Risk Index Ceiling Height Visibility

48-Hour Period Starting: 7am Thu, Apr 25 20248am Thu, Apr 25 20249am Thu, Apr 25 202410am Thu, Apr 25 202411am Thu, Apr 25 202412pm Thu, Apr 25 20241pm Thu, Apr 25 20242pm Thu, Apr 25 20243pm Thu, Apr 25 20244pm Thu, Apr 25 20245pm Thu, Apr 25 20246pm Thu, Apr 25 20247pm Thu, Apr 25 20248pm Thu, Apr 25 20249pm Thu, Apr 25 202410pm Thu, Apr 25 202411pm Thu, Apr 25 202412am Fri, Apr 26 20241am Fri, Apr 26 20242am Fri, Apr 26 20243am Fri, Apr 26 20244am Fri, Apr 26 20245am Fri, Apr 26 20246am Fri, Apr 26 20247am Fri, Apr 26 20248am Fri, Apr 26 20249am Fri, Apr 26 202410am Fri, Apr 26 202411am Fri, Apr 26 202412pm Fri, Apr 26 20241pm Fri, Apr 26 20242pm Fri, Apr 26 20243pm Fri, Apr 26 20244pm Fri, Apr 26 20245pm Fri, Apr 26 20246pm Fri, Apr 26 20247pm Fri, Apr 26 20248pm Fri, Apr 26 20249pm Fri, Apr 26 202410pm Fri, Apr 26 202411pm Fri, Apr 26 202412am Sat, Apr 27 20241am Sat, Apr 27 20242am Sat, Apr 27 20243am Sat, Apr 27 20244am Sat, Apr 27 20245am Sat, Apr 27 20246am Sat, Apr 27 20247am Sat, Apr 27 20248am Sat, Apr 27 20249am Sat, Apr 27 202410am Sat, Apr 27 202411am Sat, Apr 27 202412pm Sat, Apr 27 20241pm Sat, Apr 27 20242pm Sat, Apr 27 20243pm Sat, Apr 27 20244pm Sat, Apr 27 20245pm Sat, Apr 27 20246pm Sat, Apr 27 20247pm Sat, Apr 27 20248pm Sat, Apr 27 20249pm Sat, Apr 27 202410pm Sat, Apr 27 202411pm Sat, Apr 27 202412am Sun, Apr 28 20241am Sun, Apr 28 20242am Sun, Apr 28 20243am Sun, Apr 28 20244am Sun, Apr 28 20245am Sun, Apr 28 20246am Sun, Apr 28 20247am Sun, Apr 28 20248am Sun, Apr 28 20249am Sun, Apr 28 202410am Sun, Apr 28 202411am Sun, Apr 28 202412pm Sun, Apr 28 20241pm Sun, Apr 28 20242pm Sun, Apr 28 20243pm Sun, Apr 28 20244pm Sun, Apr 28 20245pm Sun, Apr 28 20246pm Sun, Apr 28 20247pm Sun, Apr 28 20248pm Sun, Apr 28 20249pm Sun, Apr 28 202410pm Sun, Apr 28 202411pm Sun, Apr 28 202412am Mon, Apr 29 20241am Mon, Apr 29 20242am Mon, Apr 29 20243am Mon, Apr 29 20244am Mon, Apr 29 20245am Mon, Apr 29 20246am Mon, Apr 29 20247am Mon, Apr 29 20248am Mon, Apr 29 20249am Mon, Apr 29 202410am Mon, Apr 29 202411am Mon, Apr 29 202412pm Mon, Apr 29 20241pm Mon, Apr 29 20242pm Mon, Apr 29 20243pm Mon, Apr 29 20244pm Mon, Apr 29 20245pm Mon, Apr 29 20246pm Mon, Apr 29 2024

Date	04/25																	04/26
Hour (EDT)	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06
Temperature (°C)	6	8	8	10	11	12	13	14	15	16	16	15	14	13	12	11	10	9	8	8	7	6	6	5
Dewpoint (°C)	0	-1	-1	-1	2	3	2	1	1	2	2	2	2	2	2	3	3	3	3	3	3	3	3	3
Wind Chill (°C)	3	5	6	8													9	8	8	7	6	6	6	5
Surface Wind (mph)	9	9	9	8	7	7	6	6	6	6	6	6	6	6	6	5	5	5	3	3	3	2	2	2
Wind Dir	N	N	N	N	N	N	NE	NE	NE	NE	NE	NE	E	E	E	E	SE	SE	SE	SE	E	E	E	E
Gust
Sky Cover (%)	60	67	69	71	56	56	56	56	57	57	58	57	57	56	56	56	56	51	45	40	41	41	42	44
Precipitation Potential (%)	1	2	1	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	1	2	1	1
Relative Humidity (%)	65	55	51	48	56	52	47	40	39	39	39	40	44	49	52	59	61	63	68	71	76	79	82	89
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date																		04/27
Hour (EDT)	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06
Temperature (°C)	6	7	8	12	13	15	16	17	17	18	18	17	16	15	14	12	11	10	9	9	8	8	8	8
Dewpoint (°C)	3	3	3	2	1	0	-1	-1	-1	-1	0	0	1	1	1	1	2	2	2	2	3	3	4	4
Wind Chill (°C)	6	6	7															8	8	7	7	7	7	7
Surface Wind (mph)	2	3	5	6	7	7	8	8	8	9	9	9	8	8	8	7	7	7	6	6	6	5	5	5
Wind Dir	E	E	E	E	E	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE
Gust
Sky Cover (%)	46	48	44	40	36	32	29	25	26	28	29	33	38	42	47	52	57	60	64	67	74	80	87	87
Precipitation Potential (%)	1	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	1	1	9	9	9	9	9
Relative Humidity (%)	86	79	68	52	43	36	33	30	29	29	30	31	35	37	42	46	52	56	61	63	68	73	76	79
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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