Point Forecast: Ashburn VA  39.05N 77.49W (Elev. 299 ft)	Last Update: 10:21 pm EST Jan 14, 2025

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

48-Hour Period Starting: 10pm Tue, Jan 14 202511pm Tue, Jan 14 202512am Wed, Jan 15 20251am Wed, Jan 15 20252am Wed, Jan 15 20253am Wed, Jan 15 20254am Wed, Jan 15 20255am Wed, Jan 15 20256am Wed, Jan 15 20257am Wed, Jan 15 20258am Wed, Jan 15 20259am Wed, Jan 15 202510am Wed, Jan 15 202511am Wed, Jan 15 202512pm Wed, Jan 15 20251pm Wed, Jan 15 20252pm Wed, Jan 15 20253pm Wed, Jan 15 20254pm Wed, Jan 15 20255pm Wed, Jan 15 20256pm Wed, Jan 15 20257pm Wed, Jan 15 20258pm Wed, Jan 15 20259pm Wed, Jan 15 202510pm Wed, Jan 15 202511pm Wed, Jan 15 202512am Thu, Jan 16 20251am Thu, Jan 16 20252am Thu, Jan 16 20253am Thu, Jan 16 20254am Thu, Jan 16 20255am Thu, Jan 16 20256am Thu, Jan 16 20257am Thu, Jan 16 20258am Thu, Jan 16 20259am Thu, Jan 16 202510am Thu, Jan 16 202511am Thu, Jan 16 202512pm Thu, Jan 16 20251pm Thu, Jan 16 20252pm Thu, Jan 16 20253pm Thu, Jan 16 20254pm Thu, Jan 16 20255pm Thu, Jan 16 20256pm Thu, Jan 16 20257pm Thu, Jan 16 20258pm Thu, Jan 16 20259pm Thu, Jan 16 202510pm Thu, Jan 16 202511pm Thu, Jan 16 202512am Fri, Jan 17 20251am Fri, Jan 17 20252am Fri, Jan 17 20253am Fri, Jan 17 20254am Fri, Jan 17 20255am Fri, Jan 17 20256am Fri, Jan 17 20257am Fri, Jan 17 20258am Fri, Jan 17 20259am Fri, Jan 17 202510am Fri, Jan 17 202511am Fri, Jan 17 202512pm Fri, Jan 17 20251pm Fri, Jan 17 20252pm Fri, Jan 17 20253pm Fri, Jan 17 20254pm Fri, Jan 17 20255pm Fri, Jan 17 20256pm Fri, Jan 17 20257pm Fri, Jan 17 20258pm Fri, Jan 17 20259pm Fri, Jan 17 202510pm Fri, Jan 17 202511pm Fri, Jan 17 202512am Sat, Jan 18 20251am Sat, Jan 18 20252am Sat, Jan 18 20253am Sat, Jan 18 20254am Sat, Jan 18 20255am Sat, Jan 18 20256am Sat, Jan 18 20257am Sat, Jan 18 20258am Sat, Jan 18 20259am Sat, Jan 18 202510am Sat, Jan 18 202511am Sat, Jan 18 202512pm Sat, Jan 18 20251pm Sat, Jan 18 20252pm Sat, Jan 18 20253pm Sat, Jan 18 20254pm Sat, Jan 18 20255pm Sat, Jan 18 20256pm Sat, Jan 18 20257pm Sat, Jan 18 20258pm Sat, Jan 18 20259pm Sat, Jan 18 202510pm Sat, Jan 18 202511pm Sat, Jan 18 202512am Sun, Jan 19 20251am Sun, Jan 19 20252am Sun, Jan 19 20253am Sun, Jan 19 20254am Sun, Jan 19 20255am Sun, Jan 19 20256am Sun, Jan 19 20257am Sun, Jan 19 20258am Sun, Jan 19 20259am Sun, Jan 19 2025

Date	01/14		01/15
Hour (EST)	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21
Temperature (°F)	30	29	27	26	25	23	22	21	19	18	18	22	24	27	28	29	30	30	29	28	26	24	23	22
Dewpoint (°F)	12	13	12	10	10	9	8	8	9	8	8	9	9	11	11	12	12	12	12	12	12	12	12	11
Wind Chill (°F)	20	18	15	13	12	9	8	7	5	4	3	8	10	14	15	17	18	19	18	17	15	13	12	13
Surface Wind (mph)	13	14	15	16	17	17	17	16	15	15	16	17	18	18	20	18	18	16	15	14	13	11	10	8
Wind Dir	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW
Gust	26	28	29	30	31	31	31	29	26	25	26	29	31	32	33	33	32	30	28	24	22	18
Sky Cover (%)	73	75	60	34	26	19	12	11	11	8	6	2	6	6	7	11	14	17	17	14	12	14	13	14
Precipitation Potential (%)	44	44	40	31	23	19	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Relative Humidity (%)	46	51	53	50	52	54	54	56	64	64	64	57	52	50	48	48	46	46	48	50	55	60	62	62
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	Chc	Chc	Chc	Chc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date			01/16
Hour (EST)	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21
Temperature (°F)	22	21	20	19	18	17	16	15	15	15	17	20	23	25	28	30	32	33	33	32	31	30	29	28
Dewpoint (°F)	11	11	11	10	10	10	10	10	10	10	11	11	12	13	13	14	15	17	18	19	20	20	20	19
Wind Chill (°F)	14	13	13	12	13	12	10	15	15	15	12	13	16	17	21	22	26	27	28	27	28	26	25	24
Surface Wind (mph)	7	6	5	5	3	3	3	2	2	2	3	5	6	7	7	8	7	7	6	5	3	3	3	3
Wind Dir	NW	NW	W	W	W	W	W	SW	SW	S	S	S	S	S	S	S	S	S	S	SW	SW	W	W	W
Gust
Sky Cover (%)	21	10	10	13	10	10	15	14	21	36	63	74	85	87	90	92	90	86	84	82	77	74	67	53
Precipitation Potential (%)	1	1	1	0	0	0	0	0	0	8	8	8	8	8	8	16	16	16	16	16	16	8	8	8
Relative Humidity (%)	62	65	67	67	70	73	77	80	80	80	77	67	62	60	53	51	49	51	53	58	63	66	69	68
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	SChc	SChc	SChc	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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