Point Forecast: Ashburn VA  39.05N 77.49W (Elev. 299 ft)	Last Update: 7:29 pm EDT Jun 13, 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: 8pm Thu, Jun 13 20249pm Thu, Jun 13 202410pm Thu, Jun 13 202411pm Thu, Jun 13 202412am Fri, Jun 14 20241am Fri, Jun 14 20242am Fri, Jun 14 20243am Fri, Jun 14 20244am Fri, Jun 14 20245am Fri, Jun 14 20246am Fri, Jun 14 20247am Fri, Jun 14 20248am Fri, Jun 14 20249am Fri, Jun 14 202410am Fri, Jun 14 202411am Fri, Jun 14 202412pm Fri, Jun 14 20241pm Fri, Jun 14 20242pm Fri, Jun 14 20243pm Fri, Jun 14 20244pm Fri, Jun 14 20245pm Fri, Jun 14 20246pm Fri, Jun 14 20247pm Fri, Jun 14 20248pm Fri, Jun 14 20249pm Fri, Jun 14 202410pm Fri, Jun 14 202411pm Fri, Jun 14 202412am Sat, Jun 15 20241am Sat, Jun 15 20242am Sat, Jun 15 20243am Sat, Jun 15 20244am Sat, Jun 15 20245am Sat, Jun 15 20246am Sat, Jun 15 20247am Sat, Jun 15 20248am Sat, Jun 15 20249am Sat, Jun 15 202410am Sat, Jun 15 202411am Sat, Jun 15 202412pm Sat, Jun 15 20241pm Sat, Jun 15 20242pm Sat, Jun 15 20243pm Sat, Jun 15 20244pm Sat, Jun 15 20245pm Sat, Jun 15 20246pm Sat, Jun 15 20247pm Sat, Jun 15 20248pm Sat, Jun 15 20249pm Sat, Jun 15 202410pm Sat, Jun 15 202411pm Sat, Jun 15 202412am Sun, Jun 16 20241am Sun, Jun 16 20242am Sun, Jun 16 20243am Sun, Jun 16 20244am Sun, Jun 16 20245am Sun, Jun 16 20246am Sun, Jun 16 20247am Sun, Jun 16 20248am Sun, Jun 16 20249am Sun, Jun 16 202410am Sun, Jun 16 202411am Sun, Jun 16 202412pm Sun, Jun 16 20241pm Sun, Jun 16 20242pm Sun, Jun 16 20243pm Sun, Jun 16 20244pm Sun, Jun 16 20245pm Sun, Jun 16 20246pm Sun, Jun 16 20247pm Sun, Jun 16 20248pm Sun, Jun 16 20249pm Sun, Jun 16 202410pm Sun, Jun 16 202411pm Sun, Jun 16 202412am Mon, Jun 17 20241am Mon, Jun 17 20242am Mon, Jun 17 20243am Mon, Jun 17 20244am Mon, Jun 17 20245am Mon, Jun 17 20246am Mon, Jun 17 20247am Mon, Jun 17 20248am Mon, Jun 17 20249am Mon, Jun 17 202410am Mon, Jun 17 202411am Mon, Jun 17 202412pm Mon, Jun 17 20241pm Mon, Jun 17 20242pm Mon, Jun 17 20243pm Mon, Jun 17 20244pm Mon, Jun 17 20245pm Mon, Jun 17 20246pm Mon, Jun 17 20247pm Mon, Jun 17 20248pm Mon, Jun 17 20249pm Mon, Jun 17 202410pm Mon, Jun 17 202411pm Mon, Jun 17 202412am Tue, Jun 18 20241am Tue, Jun 18 20242am Tue, Jun 18 20243am Tue, Jun 18 20244am Tue, Jun 18 20245am Tue, Jun 18 20246am Tue, Jun 18 20247am Tue, Jun 18 2024

Date	06/13				06/14
Hour (EDT)	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19
Temperature (°F)	82	79	77	75	74	73	72	71	70	69	68	70	73	77	81	85	87	88	89	89	88	87	87	84
Dewpoint (°F)	67	67	68	67	67	66	66	65	65	64	64	65	66	67	67	67	65	65	64	64	64	65	65	66
Heat Index (°F)	85	79	77	75										77	83	88	89	90	90	90	89	89	89	86
Surface Wind (mph)	7	6	6	7	7	7	6	6	5	5	5	5	5	5	3	3	5	5	6	7	7	7	7	7
Wind Dir	S	S	S	S	S	S	S	S	S	S	S	S	S	SW	SW	SW	SW	SW	SW	W	W	W	W	NW
Gust
Sky Cover (%)	61	59	56	54	52	26	13	10	10	14	18	18	20	16	16	16	24	27	36	44	48	59	63	57
Precipitation Potential (%)	22	24	22	20	14	13	7	1	0	1	1	1	1	1	1	1	1	1	23	23	23	37	37	37
Relative Humidity (%)	61	67	74	76	79	79	81	81	84	84	87	84	79	71	63	55	48	47	44	44	45	48	48	55
Rain	SChc	SChc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	Chc	Chc	Chc
Thunder	SChc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	Chc	Chc	Chc
Date					06/15
Hour (EDT)	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19
Temperature (°F)	81	77	75	73	71	70	69	68	66	66	66	67	69	71	74	77	79	80	81	82	82	82	81	79
Dewpoint (°F)	66	66	67	67	67	66	65	64	64	63	62	62	61	61	60	60	59	58	57	56	55	55	55	56
Heat Index (°F)	83	77	75													77	79	81	81	82	81	81	81	79
Surface Wind (mph)	8	9	8	7	7	7	7	7	7	7	7	8	8	9	9	10	10	10	11	10	10	9	8	7
Wind Dir	N	N	N	N	N	N	N	NW	N	N	N	NW	N	N	N	N	N	N	N	N	N	N	N	N
Gust
Sky Cover (%)	54	62	70	77	80	71	60	44	32	24	15	11	9	7	4	4	5	8	10	11	10	8	6	5
Precipitation Potential (%)	30	30	30	23	23	23	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Relative Humidity (%)	60	69	76	81	87	87	87	87	93	90	87	84	76	71	62	56	50	47	44	41	40	40	41	45
Rain	Chc	Chc	Chc	SChc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	Chc	Chc	Chc	SChc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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