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Point Forecast: Silver Spring MD  39.02N 77.03W (Elev. 308 ft)	Last Update: 9:31 pm EST Jan 18, 2019

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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: 9pm Fri, Jan 18 201910pm Fri, Jan 18 201911pm Fri, Jan 18 201912am Sat, Jan 19 20191am Sat, Jan 19 20192am Sat, Jan 19 20193am Sat, Jan 19 20194am Sat, Jan 19 20195am Sat, Jan 19 20196am Sat, Jan 19 20197am Sat, Jan 19 20198am Sat, Jan 19 20199am Sat, Jan 19 201910am Sat, Jan 19 201911am Sat, Jan 19 201912pm Sat, Jan 19 20191pm Sat, Jan 19 20192pm Sat, Jan 19 20193pm Sat, Jan 19 20194pm Sat, Jan 19 20195pm Sat, Jan 19 20196pm Sat, Jan 19 20197pm Sat, Jan 19 20198pm Sat, Jan 19 20199pm Sat, Jan 19 201910pm Sat, Jan 19 201911pm Sat, Jan 19 201912am Sun, Jan 20 20191am Sun, Jan 20 20192am Sun, Jan 20 20193am Sun, Jan 20 20194am Sun, Jan 20 20195am Sun, Jan 20 20196am Sun, Jan 20 20197am Sun, Jan 20 20198am Sun, Jan 20 20199am Sun, Jan 20 201910am Sun, Jan 20 201911am Sun, Jan 20 201912pm Sun, Jan 20 20191pm Sun, Jan 20 20192pm Sun, Jan 20 20193pm Sun, Jan 20 20194pm Sun, Jan 20 20195pm Sun, Jan 20 20196pm Sun, Jan 20 20197pm Sun, Jan 20 20198pm Sun, Jan 20 20199pm Sun, Jan 20 201910pm Sun, Jan 20 201911pm Sun, Jan 20 201912am Mon, Jan 21 20191am Mon, Jan 21 20192am Mon, Jan 21 20193am Mon, Jan 21 20194am Mon, Jan 21 20195am Mon, Jan 21 20196am Mon, Jan 21 20197am Mon, Jan 21 20198am Mon, Jan 21 20199am Mon, Jan 21 201910am Mon, Jan 21 201911am Mon, Jan 21 201912pm Mon, Jan 21 20191pm Mon, Jan 21 20192pm Mon, Jan 21 20193pm Mon, Jan 21 20194pm Mon, Jan 21 20195pm Mon, Jan 21 20196pm Mon, Jan 21 20197pm Mon, Jan 21 20198pm Mon, Jan 21 20199pm Mon, Jan 21 201910pm Mon, Jan 21 201911pm Mon, Jan 21 201912am Tue, Jan 22 20191am Tue, Jan 22 20192am Tue, Jan 22 20193am Tue, Jan 22 20194am Tue, Jan 22 20195am Tue, Jan 22 20196am Tue, Jan 22 20197am Tue, Jan 22 20198am Tue, Jan 22 20199am Tue, Jan 22 201910am Tue, Jan 22 201911am Tue, Jan 22 201912pm Tue, Jan 22 20191pm Tue, Jan 22 20192pm Tue, Jan 22 20193pm Tue, Jan 22 20194pm Tue, Jan 22 20195pm Tue, Jan 22 20196pm Tue, Jan 22 20197pm Tue, Jan 22 20198pm Tue, Jan 22 20199pm Tue, Jan 22 201910pm Tue, Jan 22 201911pm Tue, Jan 22 201912am Wed, Jan 23 20191am Wed, Jan 23 20192am Wed, Jan 23 20193am Wed, Jan 23 20194am Wed, Jan 23 20195am Wed, Jan 23 20196am Wed, Jan 23 20197am Wed, Jan 23 20198am Wed, Jan 23 2019

Date	01/18			01/19
Hour (EST)	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20
Temperature (°F)	36	35	35	35	34	34	34	34	34	33	32	32	32	32	32	32	32	32	33	33	33	34	34	35
Dewpoint (°F)	31	31	30	28	27	27	27	27	27	27	27	28	29	30	31	31	32	32	33	33	33	34	34	35
Wind Chill (°F)	31	30	30	31	30	30	30	30	30	29	27	26	26	26	26	25	25	25	25	25	25	26	26	27
Surface Wind (mph)	6	6	6	5	5	5	5	5	5	5	5	6	6	7	7	8	8	8	9	9	9	10	10	10
Wind Dir	NW	NW	NW	NW	N	N	N	N	NE	NE	NE	NE	E	E	E	E	E	E	E	E	E	E	E	E
Gust
Sky Cover (%)	74	57	74	78	83	86	87	88	88	89	82	86	93	96	97	98	98	99	100	100	100	100	100	100
Precipitation Potential (%)	1	1	1	1	1	1	1	1	1	1	8	8	8	33	33	33	76	76	76	99	99	99	100	100
Relative Humidity (%)	82	85	82	75	75	75	75	75	75	78	81	85	88	92	96	96	100	100	100	100	100	100	100	100
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	Chc	Chc	Chc	Ocnl	Ocnl	Ocnl	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	Chc	Chc	Chc	--	--	--	Ocnl	Ocnl	Ocnl	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	Chc	Chc	Chc	Ocnl	Ocnl	Ocnl	--	--	--	--	--
Date				01/20
Hour (EST)	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20
Temperature (°F)	36	36	36	36	36	36	37	37	36	36	35	33	31	30	28	28	27	27	27	26	24	22	23	21
Dewpoint (°F)	36	36	36	36	36	36	37	37	36	36	35	33	30	27	25	24	23	21	19	17	15	13	11	9
Wind Chill (°F)	29	30	30	31	32	32	32	32	30	31	29	25	20	18	15	15	14	14	14	12	10	7	9	7
Surface Wind (mph)	9	8	7	6	5	5	6	7	7	6	7	10	15	18	20	18	18	18	20	20	18	18	17	17
Wind Dir	E	E	SE	SE	S	S	SW	SW	W	W	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW
Gust												21	26	31	32	32	32	33	34	34	33	31	30	30
Sky Cover (%)	100	100	100	100	100	100	100	100	98	95	93	92	91	90	89	86	85	76	57	48	48	47	47	41
Precipitation Potential (%)	100	96	96	96	81	81	81	61	61	61	30	30	30	0	0	0	0	0	0	0	0	0	4	4
Relative Humidity (%)	100	100	100	100	100	100	100	100	100	100	100	100	96	88	88	85	85	78	71	68	68	68	59	59
Rain	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Lkly	Lkly	Lkly	Chc	Chc	Chc	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	Chc	Chc	Chc	--	--	--	--	--	--	--	--	--	--	--

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