weather.gov

Home

News

Organization

Search for:  NWSAll NOAA

Point Forecast: Washington-Dulles International Airport VA  38.95N 77.44W (Elev. 285 ft)	Last Update: 9:53 am EST Jan 19, 2020

[hide menu]  |  Font Size: A A A

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: 10am Sun, Jan 19 202011am Sun, Jan 19 202012pm Sun, Jan 19 20201pm Sun, Jan 19 20202pm Sun, Jan 19 20203pm Sun, Jan 19 20204pm Sun, Jan 19 20205pm Sun, Jan 19 20206pm Sun, Jan 19 20207pm Sun, Jan 19 20208pm Sun, Jan 19 20209pm Sun, Jan 19 202010pm Sun, Jan 19 202011pm Sun, Jan 19 202012am Mon, Jan 20 20201am Mon, Jan 20 20202am Mon, Jan 20 20203am Mon, Jan 20 20204am Mon, Jan 20 20205am Mon, Jan 20 20206am Mon, Jan 20 20207am Mon, Jan 20 20208am Mon, Jan 20 20209am Mon, Jan 20 202010am Mon, Jan 20 202011am Mon, Jan 20 202012pm Mon, Jan 20 20201pm Mon, Jan 20 20202pm Mon, Jan 20 20203pm Mon, Jan 20 20204pm Mon, Jan 20 20205pm Mon, Jan 20 20206pm Mon, Jan 20 20207pm Mon, Jan 20 20208pm Mon, Jan 20 20209pm Mon, Jan 20 202010pm Mon, Jan 20 202011pm Mon, Jan 20 202012am Tue, Jan 21 20201am Tue, Jan 21 20202am Tue, Jan 21 20203am Tue, Jan 21 20204am Tue, Jan 21 20205am Tue, Jan 21 20206am Tue, Jan 21 20207am Tue, Jan 21 20208am Tue, Jan 21 20209am Tue, Jan 21 202010am Tue, Jan 21 202011am Tue, Jan 21 202012pm Tue, Jan 21 20201pm Tue, Jan 21 20202pm Tue, Jan 21 20203pm Tue, Jan 21 20204pm Tue, Jan 21 20205pm Tue, Jan 21 20206pm Tue, Jan 21 20207pm Tue, Jan 21 20208pm Tue, Jan 21 20209pm Tue, Jan 21 202010pm Tue, Jan 21 202011pm Tue, Jan 21 202012am Wed, Jan 22 20201am Wed, Jan 22 20202am Wed, Jan 22 20203am Wed, Jan 22 20204am Wed, Jan 22 20205am Wed, Jan 22 20206am Wed, Jan 22 20207am Wed, Jan 22 20208am Wed, Jan 22 20209am Wed, Jan 22 202010am Wed, Jan 22 202011am Wed, Jan 22 202012pm Wed, Jan 22 20201pm Wed, Jan 22 20202pm Wed, Jan 22 20203pm Wed, Jan 22 20204pm Wed, Jan 22 20205pm Wed, Jan 22 20206pm Wed, Jan 22 20207pm Wed, Jan 22 20208pm Wed, Jan 22 20209pm Wed, Jan 22 202010pm Wed, Jan 22 202011pm Wed, Jan 22 202012am Thu, Jan 23 20201am Thu, Jan 23 20202am Thu, Jan 23 20203am Thu, Jan 23 20204am Thu, Jan 23 20205am Thu, Jan 23 20206am Thu, Jan 23 20207am Thu, Jan 23 20208am Thu, Jan 23 20209am Thu, Jan 23 202010am Thu, Jan 23 202011am Thu, Jan 23 202012pm Thu, Jan 23 20201pm Thu, Jan 23 20202pm Thu, Jan 23 20203pm Thu, Jan 23 20204pm Thu, Jan 23 20205pm Thu, Jan 23 20206pm Thu, Jan 23 20207pm Thu, Jan 23 20208pm Thu, Jan 23 20209pm Thu, Jan 23 2020

Date	01/19														01/20
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)	38	38	38	38	38	38	37	34	32	29	27	26	25	24	23	23	22	22	22	20	19	19	21	24
Dewpoint (°F)	25	23	21	20	19	18	17	17	16	16	16	15	15	15	14	14	14	14	14	14	14	14	14	15
Wind Chill (°F)	29	29	29	29	29	28	27	23	21	18	15	14	13	12	11	11	10	10	10	7	6	6	8	11
Surface Wind (mph)	17	17	17	17	17	18	18	17	16	15	15	15	15	14	14	13	13	13	13	13	13	13	14	15
Wind Dir	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW
Gust	26	28	28	28	28	29	29	28	26	25	25	24	24	22	22	21	21	21	21	21	21	21	22	24
Sky Cover (%)	57	59	61	64	66	65	59	48	34	22	17	16	18	21	24	29	35	40	44	44	41	36	31	26
Precipitation Potential (%)	2	2	2	0	0	0	0	0	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Relative Humidity (%)	59	54	50	48	46	44	44	49	51	58	63	62	65	68	68	68	71	71	71	77	80	80	74	68
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Fog	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date															01/21
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)	27	29	32	33	34	34	33	31	29	27	26	24	23	23	22	21	20	20	19	18	17	17	19	22
Dewpoint (°F)	15	15	14	14	14	14	14	14	14	14	14	15	15	14	14	13	13	13	13	12	12	12	13	15
Wind Chill (°F)	15	18	22	24	25	25	24	22	19	17	16	14	12	13	13	12	11	10	9	9	9	9	10	12
Surface Wind (mph)	15	15	14	13	13	13	13	11	11	10	10	10	10	9	8	7	7	8	8	7	6	6	7	9
Wind Dir	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW
Gust	24	24	22	21	21	21	21	18	18
Sky Cover (%)	22	19	17	16	15	14	14	14	15	15	16	16	17	18	18	19	21	21	21	20	18	17	16	16
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 (%)	60	55	47	45	43	43	45	49	53	57	60	68	71	68	71	71	74	74	77	77	80	80	77	74
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Fog	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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