Point Forecast: Gaithersburg MD  39.15N 77.21W (Elev. 443 ft)	Last Update: 10:30 am EDT Mar 18, 2025

[hide menu]

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: 12pm Tue, Mar 18 20251pm Tue, Mar 18 20252pm Tue, Mar 18 20253pm Tue, Mar 18 20254pm Tue, Mar 18 20255pm Tue, Mar 18 20256pm Tue, Mar 18 20257pm Tue, Mar 18 20258pm Tue, Mar 18 20259pm Tue, Mar 18 202510pm Tue, Mar 18 202511pm Tue, Mar 18 202512am Wed, Mar 19 20251am Wed, Mar 19 20252am Wed, Mar 19 20253am Wed, Mar 19 20254am Wed, Mar 19 20255am Wed, Mar 19 20256am Wed, Mar 19 20257am Wed, Mar 19 20258am Wed, Mar 19 20259am Wed, Mar 19 202510am Wed, Mar 19 202511am Wed, Mar 19 202512pm Wed, Mar 19 20251pm Wed, Mar 19 20252pm Wed, Mar 19 20253pm Wed, Mar 19 20254pm Wed, Mar 19 20255pm Wed, Mar 19 20256pm Wed, Mar 19 20257pm Wed, Mar 19 20258pm Wed, Mar 19 20259pm Wed, Mar 19 202510pm Wed, Mar 19 202511pm Wed, Mar 19 202512am Thu, Mar 20 20251am Thu, Mar 20 20252am Thu, Mar 20 20253am Thu, Mar 20 20254am Thu, Mar 20 20255am Thu, Mar 20 20256am Thu, Mar 20 20257am Thu, Mar 20 20258am Thu, Mar 20 20259am Thu, Mar 20 202510am Thu, Mar 20 202511am Thu, Mar 20 202512pm Thu, Mar 20 20251pm Thu, Mar 20 20252pm Thu, Mar 20 20253pm Thu, Mar 20 20254pm Thu, Mar 20 20255pm Thu, Mar 20 20256pm Thu, Mar 20 20257pm Thu, Mar 20 20258pm Thu, Mar 20 20259pm Thu, Mar 20 202510pm Thu, Mar 20 202511pm Thu, Mar 20 202512am Fri, Mar 21 20251am Fri, Mar 21 20252am Fri, Mar 21 20253am Fri, Mar 21 20254am Fri, Mar 21 20255am Fri, Mar 21 20256am Fri, Mar 21 20257am Fri, Mar 21 20258am Fri, Mar 21 20259am Fri, Mar 21 202510am Fri, Mar 21 202511am Fri, Mar 21 202512pm Fri, Mar 21 20251pm Fri, Mar 21 20252pm Fri, Mar 21 20253pm Fri, Mar 21 20254pm Fri, Mar 21 20255pm Fri, Mar 21 20256pm Fri, Mar 21 20257pm Fri, Mar 21 20258pm Fri, Mar 21 20259pm Fri, Mar 21 202510pm Fri, Mar 21 202511pm Fri, Mar 21 202512am Sat, Mar 22 20251am Sat, Mar 22 20252am Sat, Mar 22 20253am Sat, Mar 22 20254am Sat, Mar 22 20255am Sat, Mar 22 20256am Sat, Mar 22 20257am Sat, Mar 22 20258am Sat, Mar 22 20259am Sat, Mar 22 202510am Sat, Mar 22 202511am Sat, Mar 22 202512pm Sat, Mar 22 20251pm Sat, Mar 22 20252pm Sat, Mar 22 20253pm Sat, Mar 22 20254pm Sat, Mar 22 20255pm Sat, Mar 22 20256pm Sat, Mar 22 20257pm Sat, Mar 22 20258pm Sat, Mar 22 20259pm Sat, Mar 22 202510pm Sat, Mar 22 202511pm Sat, Mar 22 2025

Date	03/18												03/19
Hour (EDT)	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11
Temperature (°F)	52	57	60	62	63	64	63	61	58	55	52	51	50	48	46	46	45	44	44	44	43	47	53	59
Dewpoint (°F)	18	19	19	20	20	22	23	25	29	30	32	34	35	35	35	35	35	35	34	33	32	33	34	36
Wind Chill (°F)													50	48	46	46	45	44	44	44	43	46
Surface Wind (mph)	6	5	5	5	3	3	3	2	2	2	2	2	2	2	2	2	1	1	1	1	2	3	5	6
Wind Dir	NW	NW	NW	W	W	W	SW	S	S	S	S	S	S	S	S	S	S	SE	SE	SE	SE	SE	SE	SE
Gust
Sky Cover (%)	1	1	1	1	1	1	1	2	2	2	2	2	3	3	4	4	5	6	9	15	25	28	34	39
Precipitation Potential (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Relative Humidity (%)	26	22	20	20	19	20	21	25	33	38	46	52	56	60	65	65	68	70	68	65	65	58	48	42
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date													03/20
Hour (EDT)	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11
Temperature (°F)	64	67	69	71	72	72	70	68	65	62	59	57	55	53	52	51	50	50	49	49	50	53	57	61
Dewpoint (°F)	37	37	37	38	38	39	39	39	39	39	38	37	36	36	36	37	38	39	40	40	42	43	45	46
Wind Chill (°F)																	46	46	45	45	46
Surface Wind (mph)	7	8	9	10	10	10	10	10	10	10	10	10	10	9	9	9	9	9	9	10	11	11	11	13
Wind Dir	SE	S	S	S	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	S	S	S
Gust			20	21	21	21	21	20	20	20	20	21	21	20	20	20	20	20	18	18	18	20	21	22
Sky Cover (%)	45	51	54	54	52	51	53	57	61	64	75	74	73	72	72	72	71	71	71	72	64	67	73	76
Precipitation Potential (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	4	4	4	4	4	4	34	34	34	34
Relative Humidity (%)	37	33	31	30	29	30	32	34	38	43	45	47	49	52	54	59	63	66	71	71	74	69	64	58
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	Chc	Chc	Chc	Chc
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

International System of Units Forecast Discussion 7-Day Forecast Hourly Weather Graph Hazardous Weather Briefing Page Past Weather Information Interactive Forecast Map Home