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Point Forecast: Silver Spring MD  39.02N 77.03W (Elev. 308 ft)	Last Update: 10:16 am EST Dec 16, 2018

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Weather Elements Weather/Precipitation Fire 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)

48-Hour Period Starting: 10am Sun, Dec 16 201811am Sun, Dec 16 201812pm Sun, Dec 16 20181pm Sun, Dec 16 20182pm Sun, Dec 16 20183pm Sun, Dec 16 20184pm Sun, Dec 16 20185pm Sun, Dec 16 20186pm Sun, Dec 16 20187pm Sun, Dec 16 20188pm Sun, Dec 16 20189pm Sun, Dec 16 201810pm Sun, Dec 16 201811pm Sun, Dec 16 201812am Mon, Dec 17 20181am Mon, Dec 17 20182am Mon, Dec 17 20183am Mon, Dec 17 20184am Mon, Dec 17 20185am Mon, Dec 17 20186am Mon, Dec 17 20187am Mon, Dec 17 20188am Mon, Dec 17 20189am Mon, Dec 17 201810am Mon, Dec 17 201811am Mon, Dec 17 201812pm Mon, Dec 17 20181pm Mon, Dec 17 20182pm Mon, Dec 17 20183pm Mon, Dec 17 20184pm Mon, Dec 17 20185pm Mon, Dec 17 20186pm Mon, Dec 17 20187pm Mon, Dec 17 20188pm Mon, Dec 17 20189pm Mon, Dec 17 201810pm Mon, Dec 17 201811pm Mon, Dec 17 201812am Tue, Dec 18 20181am Tue, Dec 18 20182am Tue, Dec 18 20183am Tue, Dec 18 20184am Tue, Dec 18 20185am Tue, Dec 18 20186am Tue, Dec 18 20187am Tue, Dec 18 20188am Tue, Dec 18 20189am Tue, Dec 18 201810am Tue, Dec 18 201811am Tue, Dec 18 201812pm Tue, Dec 18 20181pm Tue, Dec 18 20182pm Tue, Dec 18 20183pm Tue, Dec 18 20184pm Tue, Dec 18 20185pm Tue, Dec 18 20186pm Tue, Dec 18 20187pm Tue, Dec 18 20188pm Tue, Dec 18 20189pm Tue, Dec 18 201810pm Tue, Dec 18 201811pm Tue, Dec 18 201812am Wed, Dec 19 20181am Wed, Dec 19 20182am Wed, Dec 19 20183am Wed, Dec 19 20184am Wed, Dec 19 20185am Wed, Dec 19 20186am Wed, Dec 19 20187am Wed, Dec 19 20188am Wed, Dec 19 20189am Wed, Dec 19 201810am Wed, Dec 19 201811am Wed, Dec 19 201812pm Wed, Dec 19 20181pm Wed, Dec 19 20182pm Wed, Dec 19 20183pm Wed, Dec 19 20184pm Wed, Dec 19 20185pm Wed, Dec 19 20186pm Wed, Dec 19 20187pm Wed, Dec 19 20188pm Wed, Dec 19 20189pm Wed, Dec 19 201810pm Wed, Dec 19 201811pm Wed, Dec 19 201812am Thu, Dec 20 20181am Thu, Dec 20 20182am Thu, Dec 20 20183am Thu, Dec 20 20184am Thu, Dec 20 20185am Thu, Dec 20 20186am Thu, Dec 20 20187am Thu, Dec 20 20188am Thu, Dec 20 20189am Thu, Dec 20 201810am Thu, Dec 20 201811am Thu, Dec 20 201812pm Thu, Dec 20 20181pm Thu, Dec 20 20182pm Thu, Dec 20 20183pm Thu, Dec 20 20184pm Thu, Dec 20 20185pm Thu, Dec 20 20186pm Thu, Dec 20 20187pm Thu, Dec 20 20188pm Thu, Dec 20 20189pm Thu, Dec 20 2018

Date	12/16														12/17
Hour (EST)	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09
Temperature (°F)	42	41	41	40	39	39	39	39	39	38	38	38	38	38	38	37	37	37	37	36	37	38	39	41
Dewpoint (°F)	41	40	39	38	37	37	37	37	37	36	36	36	36	36	35	35	35	34	34	34	34	34	34	35
Wind Chill (°F)	36	35	35	33	31	31	31	32	32	31	31	31	31	32	32	31	31	31	31	30	31	32	33	35
Surface Wind (mph)	9	10	10	11	13	13	13	11	11	10	10	10	10	9	9	8	8	8	8	8	8	8	9	10
Wind Dir	N	N	N	N	N	N	N	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	W
Gust					21	21	21	20
Sky Cover (%)	100	100	100	100	100	100	100	100	100	92	90	87	85	77	62	54	48	35	28	28	27	26	25	23
Precipitation Potential (%)	93	93	93	92	92	92	37	37	37	5	5	5	5	5	5	4	4	4	4	4	4	1	1	1
Relative Humidity (%)	96	96	92	92	92	92	92	92	92	92	92	92	92	92	89	92	92	89	89	92	89	85	82	79
Rain	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Chc	Chc	Chc	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date															12/18
Hour (EST)	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09
Temperature (°F)	43	45	47	48	47	47	46	44	42	40	39	39	38	37	37	36	36	35	35	34	34	33	34	35
Dewpoint (°F)	35	35	35	34	33	31	30	29	28	27	26	25	24	23	23	23	23	23	23	23	22	22	22	23
Wind Chill (°F)	37	39	41	42	41	41	39	37	34	32	31	31	30	29	29	28	28	26	26	26	26	25	27	27
Surface Wind (mph)	11	13	14	15	16	16	16	15	15	14	14	14	14	13	13	11	11	13	13	11	10	9	9	10
Wind Dir	W	W	W	W	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW
Gust	21	23	25	28	28	28	28	28	28	26	25	24	23	23	22	21	20	20	20					20
Sky Cover (%)	22	22	21	21	23	26	28	29	30	31	30	28	27	29	33	35	33	28	26	27	28	28	24	15
Precipitation Potential (%)	1	1	1	1	1	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Relative Humidity (%)	73	68	63	58	58	53	53	55	57	59	59	57	57	56	56	59	59	61	61	64	61	63	61	61
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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