weather.gov

Home

News

Organization

Search for:  NWSAll NOAA

Point Forecast: Rockville MD  39.08N 77.16W (Elev. 430 ft)	Last Update: 9:32 am EST Dec 3, 2021

[hide menu]

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) Atmospheric Dispersion Index Low Visibility Occurrence Risk Index

48-Hour Period Starting: 12pm Fri, Dec 3 20211pm Fri, Dec 3 20212pm Fri, Dec 3 20213pm Fri, Dec 3 20214pm Fri, Dec 3 20215pm Fri, Dec 3 20216pm Fri, Dec 3 20217pm Fri, Dec 3 20218pm Fri, Dec 3 20219pm Fri, Dec 3 202110pm Fri, Dec 3 202111pm Fri, Dec 3 202112am Sat, Dec 4 20211am Sat, Dec 4 20212am Sat, Dec 4 20213am Sat, Dec 4 20214am Sat, Dec 4 20215am Sat, Dec 4 20216am Sat, Dec 4 20217am Sat, Dec 4 20218am Sat, Dec 4 20219am Sat, Dec 4 202110am Sat, Dec 4 202111am Sat, Dec 4 202112pm Sat, Dec 4 20211pm Sat, Dec 4 20212pm Sat, Dec 4 20213pm Sat, Dec 4 20214pm Sat, Dec 4 20215pm Sat, Dec 4 20216pm Sat, Dec 4 20217pm Sat, Dec 4 20218pm Sat, Dec 4 20219pm Sat, Dec 4 202110pm Sat, Dec 4 202111pm Sat, Dec 4 202112am Sun, Dec 5 20211am Sun, Dec 5 20212am Sun, Dec 5 20213am Sun, Dec 5 20214am Sun, Dec 5 20215am Sun, Dec 5 20216am Sun, Dec 5 20217am Sun, Dec 5 20218am Sun, Dec 5 20219am Sun, Dec 5 202110am Sun, Dec 5 202111am Sun, Dec 5 202112pm Sun, Dec 5 20211pm Sun, Dec 5 20212pm Sun, Dec 5 20213pm Sun, Dec 5 20214pm Sun, Dec 5 20215pm Sun, Dec 5 20216pm Sun, Dec 5 20217pm Sun, Dec 5 20218pm Sun, Dec 5 20219pm Sun, Dec 5 202110pm Sun, Dec 5 202111pm Sun, Dec 5 202112am Mon, Dec 6 20211am Mon, Dec 6 20212am Mon, Dec 6 20213am Mon, Dec 6 20214am Mon, Dec 6 20215am Mon, Dec 6 20216am Mon, Dec 6 20217am Mon, Dec 6 20218am Mon, Dec 6 20219am Mon, Dec 6 202110am Mon, Dec 6 202111am Mon, Dec 6 202112pm Mon, Dec 6 20211pm Mon, Dec 6 20212pm Mon, Dec 6 20213pm Mon, Dec 6 20214pm Mon, Dec 6 20215pm Mon, Dec 6 20216pm Mon, Dec 6 20217pm Mon, Dec 6 20218pm Mon, Dec 6 20219pm Mon, Dec 6 202110pm Mon, Dec 6 202111pm Mon, Dec 6 202112am Tue, Dec 7 20211am Tue, Dec 7 20212am Tue, Dec 7 20213am Tue, Dec 7 20214am Tue, Dec 7 20215am Tue, Dec 7 20216am Tue, Dec 7 20217am Tue, Dec 7 20218am Tue, Dec 7 20219am Tue, Dec 7 202110am Tue, Dec 7 202111am Tue, Dec 7 202112pm Tue, Dec 7 20211pm Tue, Dec 7 20212pm Tue, Dec 7 20213pm Tue, Dec 7 20214pm Tue, Dec 7 20215pm Tue, Dec 7 20216pm Tue, Dec 7 20217pm Tue, Dec 7 20218pm Tue, Dec 7 20219pm Tue, Dec 7 202110pm Tue, Dec 7 202111pm Tue, Dec 7 2021

Date	12/03												12/04
Hour (EST)	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)	50	52	51	52	51	49	47	45	43	42	42	41	41	41	41	42	41	41	41	40	42	44	47	49
Dewpoint (°F)	28	28	29	29	29	29	29	30	32	32	32	33	33	33	34	35	35	35	35	35	37	37	38	37
Wind Chill (°F)	45					46	44	44	43	42	42	41	41	41	41	40	39	41	41	40	42	44	46	47
Surface Wind (mph)	14	13	13	10	10	7	6	3	1	2	2	2	2	2	2	3	3	2	2	2	2	2	3	5
Wind Dir	NW	NW	NW	NW	NW	NW	N	NE	E	E	E	E	SE	SE	SE	E	E	E	E	NE	NE	N	N	NW
Gust	22	22	21	18
Sky Cover (%)	74	64	54	59	63	62	60	48	36	29	39	43	56	74	66	58	52	55	45	53	44	40	48	40
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 (%)	42	39	42	41	42	46	49	55	65	67	67	73	73	73	76	76	79	79	79	82	82	76	71	63
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date													12/05
Hour (EST)	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	54	55	54	53	51	48	46	44	43	42	40	38	37	36	36	35	34	33	33	35	37	40	42
Dewpoint (°F)	38	37	36	37	36	35	34	33	32	31	30	29	29	28	28	27	27	27	26	26	26	27	27	27
Wind Chill (°F)							46	44	41	39	38	36	34	33	32	33	32	34	33	33	32	33	36	38
Surface Wind (mph)	6	6	6	6	6	5	5	5	5	6	6	6	5	5	5	3	3	2	2	2	3	5	6	7
Wind Dir	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	N	N	N	N	N	N	N	NE	NE	NE	E	E	E
Gust
Sky Cover (%)	44	43	35	31	30	48	36	32	28	25	21	20	19	18	20	22	25	26	27	28	34	40	47	50
Precipitation Potential (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	7	7
Relative Humidity (%)	59	52	49	52	52	54	58	60	62	62	62	64	70	70	72	69	72	75	75	75	69	67	59	55
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
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

---

Webmaster NOAA's National Weather Service Baltimore, MD/Washington, D.C.

Disclaimer Credits Glossary

Privacy Policy About Us Career Opportunities