Point Forecast: Mount Vernon VA  38.72N 77.11W (Elev. 11 m)	Last Update: 5:36 pm EDT Apr 14, 2026

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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 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: 5pm Tue, Apr 14 20266pm Tue, Apr 14 20267pm Tue, Apr 14 20268pm Tue, Apr 14 20269pm Tue, Apr 14 202610pm Tue, Apr 14 202611pm Tue, Apr 14 202612am Wed, Apr 15 20261am Wed, Apr 15 20262am Wed, Apr 15 20263am Wed, Apr 15 20264am Wed, Apr 15 20265am Wed, Apr 15 20266am Wed, Apr 15 20267am Wed, Apr 15 20268am Wed, Apr 15 20269am Wed, Apr 15 202610am Wed, Apr 15 202611am Wed, Apr 15 202612pm Wed, Apr 15 20261pm Wed, Apr 15 20262pm Wed, Apr 15 20263pm Wed, Apr 15 20264pm Wed, Apr 15 20265pm Wed, Apr 15 20266pm Wed, Apr 15 20267pm Wed, Apr 15 20268pm Wed, Apr 15 20269pm Wed, Apr 15 202610pm Wed, Apr 15 202611pm Wed, Apr 15 202612am Thu, Apr 16 20261am Thu, Apr 16 20262am Thu, Apr 16 20263am Thu, Apr 16 20264am Thu, Apr 16 20265am Thu, Apr 16 20266am Thu, Apr 16 20267am Thu, Apr 16 20268am Thu, Apr 16 20269am Thu, Apr 16 202610am Thu, Apr 16 202611am Thu, Apr 16 202612pm Thu, Apr 16 20261pm Thu, Apr 16 20262pm Thu, Apr 16 20263pm Thu, Apr 16 20264pm Thu, Apr 16 20265pm Thu, Apr 16 20266pm Thu, Apr 16 20267pm Thu, Apr 16 20268pm Thu, Apr 16 20269pm Thu, Apr 16 202610pm Thu, Apr 16 202611pm Thu, Apr 16 202612am Fri, Apr 17 20261am Fri, Apr 17 20262am Fri, Apr 17 20263am Fri, Apr 17 20264am Fri, Apr 17 20265am Fri, Apr 17 20266am Fri, Apr 17 20267am Fri, Apr 17 20268am Fri, Apr 17 20269am Fri, Apr 17 202610am Fri, Apr 17 202611am Fri, Apr 17 202612pm Fri, Apr 17 20261pm Fri, Apr 17 20262pm Fri, Apr 17 20263pm Fri, Apr 17 20264pm Fri, Apr 17 20265pm Fri, Apr 17 20266pm Fri, Apr 17 20267pm Fri, Apr 17 20268pm Fri, Apr 17 20269pm Fri, Apr 17 202610pm Fri, Apr 17 202611pm Fri, Apr 17 202612am Sat, Apr 18 20261am Sat, Apr 18 20262am Sat, Apr 18 20263am Sat, Apr 18 20264am Sat, Apr 18 20265am Sat, Apr 18 20266am Sat, Apr 18 20267am Sat, Apr 18 20268am Sat, Apr 18 20269am Sat, Apr 18 202610am Sat, Apr 18 202611am Sat, Apr 18 202612pm Sat, Apr 18 20261pm Sat, Apr 18 20262pm Sat, Apr 18 20263pm Sat, Apr 18 20264pm Sat, Apr 18 20265pm Sat, Apr 18 20266pm Sat, Apr 18 20267pm Sat, Apr 18 20268pm Sat, Apr 18 20269pm Sat, Apr 18 202610pm Sat, Apr 18 202611pm Sat, Apr 18 202612am Sun, Apr 19 20261am Sun, Apr 19 20262am Sun, Apr 19 20263am Sun, Apr 19 20264am Sun, Apr 19 2026

Date	04/14							04/15
Hour (EDT)	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16
Temperature (°C)	31	31	30	27	26	25	24	23	22	22	21	21	20	20	19	21	23	27	28	31	31	33	33	34
Dewpoint (°C)	13	13	14	14	14	14	14	14	14	14	14	14	14	14	14	15	15	16	16	16	15	14	14	14
Wind Chill (°C)
Surface Wind (mph)	11	9	7	6	6	5	5	3	3	2	2	2	2	2	2	2	2	3	5	6	6	7	8	8
Wind Dir	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	S	S	SW
Gust
Sky Cover (%)	40	60	48	49	43	36	33	22	30	28	21	28	30	29	23	24	13	28	14	16	18	18	25	17
Precipitation Potential (%)	9	12	9	10	11	7	5	5	4	4	4	3	3	4	5	3	3	3	3	2	1	4	4	4
Relative Humidity (%)	33	34	37	44	47	50	54	55	59	61	63	66	68	70	73	70	62	51	46	40	38	33	31	30
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date								04/16
Hour (EDT)	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16
Temperature (°C)	34	33	32	31	28	27	26	25	24	23	23	22	22	22	22	22	24	26	28	30	32	33	33	33
Dewpoint (°C)	13	13	13	14	13	13	13	13	13	13	13	13	13	13	13	13	14	14	14	14	13	12	12	11
Wind Chill (°C)
Surface Wind (mph)	8	7	7	6	6	5	5	5	3	3	3	3	2	2	2	2	3	3	5	6	6	7	8	9
Wind Dir	SW	SW	SW	S	S	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW
Gust
Sky Cover (%)	26	28	28	43	59	53	47	46	45	44	47	50	53	53	53	53	52	52	51	52	53	54	55	55
Precipitation Potential (%)	5	6	6	2	2	2	2	2	2	0	0	0	0	0	0	0	0	0	0	0	0	3	3	3
Relative Humidity (%)	29	31	31	36	40	41	44	47	48	51	53	55	57	57	57	57	54	49	43	37	33	29	27	26
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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