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Point Forecast: Gaithersburg MD  39.13N 77.21W (Elev. 404 ft)	Last Update: 10:31 am EDT May 15, 2021

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Weather Elements Weather/Precipitation Fire Weather Temperature (°F) Dewpoint (°F) Heat Index (°F) Surface Wind  ktmphkm/hm/s Sky Cover (%) Precipitation Potential (%) Relative Humidity (%) Rain Thunder 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

48-Hour Period Starting: 11am Sat, May 15 202112pm Sat, May 15 20211pm Sat, May 15 20212pm Sat, May 15 20213pm Sat, May 15 20214pm Sat, May 15 20215pm Sat, May 15 20216pm Sat, May 15 20217pm Sat, May 15 20218pm Sat, May 15 20219pm Sat, May 15 202110pm Sat, May 15 202111pm Sat, May 15 202112am Sun, May 16 20211am Sun, May 16 20212am Sun, May 16 20213am Sun, May 16 20214am Sun, May 16 20215am Sun, May 16 20216am Sun, May 16 20217am Sun, May 16 20218am Sun, May 16 20219am Sun, May 16 202110am Sun, May 16 202111am Sun, May 16 202112pm Sun, May 16 20211pm Sun, May 16 20212pm Sun, May 16 20213pm Sun, May 16 20214pm Sun, May 16 20215pm Sun, May 16 20216pm Sun, May 16 20217pm Sun, May 16 20218pm Sun, May 16 20219pm Sun, May 16 202110pm Sun, May 16 202111pm Sun, May 16 202112am Mon, May 17 20211am Mon, May 17 20212am Mon, May 17 20213am Mon, May 17 20214am Mon, May 17 20215am Mon, May 17 20216am Mon, May 17 20217am Mon, May 17 20218am Mon, May 17 20219am Mon, May 17 202110am Mon, May 17 202111am Mon, May 17 202112pm Mon, May 17 20211pm Mon, May 17 20212pm Mon, May 17 20213pm Mon, May 17 20214pm Mon, May 17 20215pm Mon, May 17 20216pm Mon, May 17 20217pm Mon, May 17 20218pm Mon, May 17 20219pm Mon, May 17 202110pm Mon, May 17 202111pm Mon, May 17 202112am Tue, May 18 20211am Tue, May 18 20212am Tue, May 18 20213am Tue, May 18 20214am Tue, May 18 20215am Tue, May 18 20216am Tue, May 18 20217am Tue, May 18 20218am Tue, May 18 20219am Tue, May 18 202110am Tue, May 18 202111am Tue, May 18 202112pm Tue, May 18 20211pm Tue, May 18 20212pm Tue, May 18 20213pm Tue, May 18 20214pm Tue, May 18 20215pm Tue, May 18 20216pm Tue, May 18 20217pm Tue, May 18 20218pm Tue, May 18 20219pm Tue, May 18 202110pm Tue, May 18 202111pm Tue, May 18 202112am Wed, May 19 20211am Wed, May 19 20212am Wed, May 19 20213am Wed, May 19 20214am Wed, May 19 20215am Wed, May 19 20216am Wed, May 19 20217am Wed, May 19 20218am Wed, May 19 20219am Wed, May 19 202110am Wed, May 19 202111am Wed, May 19 202112pm Wed, May 19 20211pm Wed, May 19 20212pm Wed, May 19 20213pm Wed, May 19 20214pm Wed, May 19 20215pm Wed, May 19 20216pm Wed, May 19 20217pm Wed, May 19 20218pm Wed, May 19 20219pm Wed, May 19 202110pm Wed, May 19 2021

Date	05/15													05/16
Hour (EDT)	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10
Temperature (°F)	68	71	73	74	75	76	74	72	70	68	64	62	60	58	57	56	55	55	54	54	54	57	60	63
Dewpoint (°F)	39	36	35	35	35	35	36	37	38	40	41	43	42	42	42	43	43	43	43	44	44	46	45	46
Heat Index (°F)					75	76
Surface Wind (mph)	3	3	3	3	3	3	5	3	3	3	3	2	3	3	2	2	2	2	2	2	2	2	3	5
Wind Dir	NW	W	W	W	W	E	E	E	E	E	SE	SE	SE	SE	S	S	S	S	S	S	S	S	S	S
Gust
Sky Cover (%)	5	12	22	40	47	50	45	45	46	50	48	43	41	44	49	52	53	56	57	58	60	61	66	75
Precipitation Potential (%)	4	7	13	13	13	13	13	13	13	2	2	2	2	2	2	4	4	4	4	4	4	24	24	24
Relative Humidity (%)	34	28	25	24	23	22	25	28	31	36	43	50	51	55	57	62	64	64	66	69	69	67	58	54
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date														05/17
Hour (EDT)	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10
Temperature (°F)	66	67	68	69	69	68	67	66	66	65	63	61	59	58	57	56	55	55	55	55	56	57	60	63
Dewpoint (°F)	45	46	45	46	45	46	47	48	48	48	48	49	49	49	49	49	49	50	50	51	51	52	52	52
Heat Index (°F)
Surface Wind (mph)	5	5	6	7	7	7	7	7	6	3	3	3	3	3	3	3	3	3	3	2	2	2	3	3
Wind Dir	S	S	S	SW	SW	SW	SW	S	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE
Gust
Sky Cover (%)	79	80	83	84	85	88	89	86	79	75	75	74	74	73	71	70	72	75	77	76	75	74	74	75
Precipitation Potential (%)	24	24	24	45	45	45	45	45	45	24	24	24	24	24	24	14	14	14	14	14	14	19	19	19
Relative Humidity (%)	47	47	43	44	42	45	49	52	52	54	58	65	69	72	75	77	80	83	83	86	83	83	75	67
Rain	SChc	SChc	SChc	Chc	Chc	Chc	Chc	Chc	Chc	SChc	SChc	SChc	SChc	SChc	SChc	--	--	--	--	--	--	SChc	SChc	SChc
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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