Point Forecast: Reston VA  38.97N 77.36W (Elev. 430 ft)	Last Update: 12:53 pm EST Jan 24, 2026

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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 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: 1pm Sat, Jan 24 20262pm Sat, Jan 24 20263pm Sat, Jan 24 20264pm Sat, Jan 24 20265pm Sat, Jan 24 20266pm Sat, Jan 24 20267pm Sat, Jan 24 20268pm Sat, Jan 24 20269pm Sat, Jan 24 202610pm Sat, Jan 24 202611pm Sat, Jan 24 202612am Sun, Jan 25 20261am Sun, Jan 25 20262am Sun, Jan 25 20263am Sun, Jan 25 20264am Sun, Jan 25 20265am Sun, Jan 25 20266am Sun, Jan 25 20267am Sun, Jan 25 20268am Sun, Jan 25 20269am Sun, Jan 25 202610am Sun, Jan 25 202611am Sun, Jan 25 202612pm Sun, Jan 25 20261pm Sun, Jan 25 20262pm Sun, Jan 25 20263pm Sun, Jan 25 20264pm Sun, Jan 25 20265pm Sun, Jan 25 20266pm Sun, Jan 25 20267pm Sun, Jan 25 20268pm Sun, Jan 25 20269pm Sun, Jan 25 202610pm Sun, Jan 25 202611pm Sun, Jan 25 202612am Mon, Jan 26 20261am Mon, Jan 26 20262am Mon, Jan 26 20263am Mon, Jan 26 20264am Mon, Jan 26 20265am Mon, Jan 26 20266am Mon, Jan 26 20267am Mon, Jan 26 20268am Mon, Jan 26 20269am Mon, Jan 26 202610am Mon, Jan 26 202611am Mon, Jan 26 202612pm Mon, Jan 26 20261pm Mon, Jan 26 20262pm Mon, Jan 26 20263pm Mon, Jan 26 20264pm Mon, Jan 26 20265pm Mon, Jan 26 20266pm Mon, Jan 26 20267pm Mon, Jan 26 20268pm Mon, Jan 26 20269pm Mon, Jan 26 202610pm Mon, Jan 26 202611pm Mon, Jan 26 202612am Tue, Jan 27 20261am Tue, Jan 27 20262am Tue, Jan 27 20263am Tue, Jan 27 20264am Tue, Jan 27 20265am Tue, Jan 27 20266am Tue, Jan 27 20267am Tue, Jan 27 20268am Tue, Jan 27 20269am Tue, Jan 27 202610am Tue, Jan 27 202611am Tue, Jan 27 202612pm Tue, Jan 27 20261pm Tue, Jan 27 20262pm Tue, Jan 27 20263pm Tue, Jan 27 20264pm Tue, Jan 27 20265pm Tue, Jan 27 20266pm Tue, Jan 27 20267pm Tue, Jan 27 20268pm Tue, Jan 27 20269pm Tue, Jan 27 202610pm Tue, Jan 27 202611pm Tue, Jan 27 202612am Wed, Jan 28 20261am Wed, Jan 28 20262am Wed, Jan 28 20263am Wed, Jan 28 20264am Wed, Jan 28 20265am Wed, Jan 28 20266am Wed, Jan 28 20267am Wed, Jan 28 20268am Wed, Jan 28 20269am Wed, Jan 28 202610am Wed, Jan 28 202611am Wed, Jan 28 202612pm Wed, Jan 28 20261pm Wed, Jan 28 20262pm Wed, Jan 28 20263pm Wed, Jan 28 20264pm Wed, Jan 28 20265pm Wed, Jan 28 20266pm Wed, Jan 28 20267pm Wed, Jan 28 20268pm Wed, Jan 28 20269pm Wed, Jan 28 202610pm Wed, Jan 28 202611pm Wed, Jan 28 202612am Thu, Jan 29 2026

Date	01/24											01/25
Hour (EST)	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12
Temperature (°F)	18	20	20	19	19	19	20	19	19	19	18	18	17	18	17	17	17	17	17	17	18	19	20	21
Dewpoint (°F)	-10	-11	-11	-11	-10	-10	-6	-5	-3	-2	3	9	12	13	14	15	15	15	16	16	17	19	19	20
Wind Chill (°F)	10	12	12	12	12	14	15	14	14	14	11	11	10	11	9	9	9	9	8	8	9	10	10	11
Surface Wind (mph)	6	6	6	5	5	3	3	3	3	3	5	5	5	5	6	6	6	6	7	7	7	7	8	8
Wind Dir	N	N	N	N	NE	NE	NE	E	E	E	E	E	E	E	E	E	NE	NE	NE	NE	NE	NE	NE	NE
Gust
Sky Cover (%)	69	77	84	90	92	95	95	93	94	95	94	94	95	95	97	98	99	100	98	100	100	100	100	97
Precipitation Potential (%)	1	1	1	3	3	10	12	14	14	17	34	77	79	92	95	96	98	99	97	100	99	100	99	94
Relative Humidity (%)	27	24	24	25	26	26	30	33	37	39	51	67	80	80	88	92	92	92	96	96	96	100	96	96
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	SChc	Chc	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	SChc	Ocnl
Date												01/26
Hour (EST)	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12
Temperature (°F)	21	23	24	25	25	26	25	25	25	25	25	24	24	23	23	22	22	21	21	23	24	25	26	27
Dewpoint (°F)	21	22	22	23	23	23	24	24	24	24	24	23	23	22	22	21	20	20	19	19	19	19	19	19
Wind Chill (°F)	11	14	15	17	18	19	18	18	19	19	21	20	20	17	17	15	13	11	10	11	12	13	13	14
Surface Wind (mph)	8	8	8	7	6	6	6	6	5	5	3	3	3	5	5	6	8	9	10	13	14	15	16	17
Wind Dir	NE	NE	NE	NE	NE	N	N	N	N	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW
Gust																			20	23	25	28	29	30
Sky Cover (%)	100	98	96	98	98	97	97	95	95	94	94	94	73	66	60	53	50	50	41	42	43	44	43	43
Precipitation Potential (%)	99	96	93	96	97	91	91	91	91	91	91	91	25	25	25	25	25	25	7	7	7	7	7	7
Relative Humidity (%)	100	96	92	92	92	88	96	96	96	96	96	96	96	96	96	96	92	96	92	84	81	78	74	71
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Chc	Chc	Chc	Chc	Chc	Chc	--	--	--	--	--	--
Sleet	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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