Ashburn, Virginia Weather Forecast

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Ashburn, VA, US

39.04372, -77.48749

Air Quality

Updated 12 minutes ago

Good

Primary Pollutant: O3

O3	75 µg/m3 (34)
PM2.5	6 µg/m3 (25)
CO	137 µg/m3 (1)

NO2	3 µg/m3 (1)
SO2	3 µg/m3 (1)

Source: AirNow (EPA), Virginia Dept. of Environmental Quality, Maryland Department of the Environment, CAMS

Nearby Stations

Station	AQI	Primary Pollutant	PM2.5 (AQI)	PM10 (AQI)	NO2 (AQI)	OZONE (AQI)	CO (AQI)	SO2 (AQI)
River_terrace	33	O3	6 (25)	n/a	5.64 (3)	72 (33)	n/a	n/a
Mcmillan Reservoir	37	O3	3 (12)	n/a	3.76 (2)	82 (37)	n/a	n/a
Takomarec	34	O3	n/a	n/a	11 (6)	74 (34)	n/a	n/a
Dcnearroad	17	PM2.5	4 (17)	n/a	5.64 (3)	n/a	195 (2)	n/a
Baltimore County Nea	8	NO2	n/a	n/a	17 (8)	n/a	n/a	n/a
Howard County Near R	6	NO2	0 (0)	n/a	11 (6)	n/a	275 (3)	n/a
Rockville	33	O3	6 (25)	n/a	n/a	72 (33)	n/a	n/a
Hu-Beltsville	32	O3	n/a	n/a	1.88 (1)	70 (32)	92 (1)	0 (0)
Beltsville	34	O3	n/a	n/a	n/a	74 (34)	n/a	n/a
Hagerstown	30	O3	6 (25)	n/a	n/a	66 (30)	n/a	n/a

Source: AirNow (EPA), District of Columbia - Department of Energy and Environment, Maryland Department of the Environment, EPA Office of Atmospheric Programs

Extended Forecast


Hour
AQI
Primary
Wind Dir

Wind Speed ( mph kmh)
Temp (°F°C)

Tuesday, Jun 15					Wednesday, Jun 16																								Thursday, Jun 17																								Friday, Jun 18																								Saturday, Jun 19
7pm	8pm	9pm	10pm	11pm	12am	1am	2am	3am	4am	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm	12am	1am	2am	3am	4am	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm	12am	1am	2am	3am	4am	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm	12am	1am	2am	3am	4am	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm
31	31	31	31	30	30	30	29	29	28	28	27	27	26	31	36	36	42	42	47	47	47	47	42	42	36	36	36	31	31	31	31	31	31	31	31	31	31	36	42	47	47	47	47	60	60	60	47	42	36	38	38	38	64	64	64	64	38	38	38	38	38	42	47	79	79	79	79	79	79	79	60	47	42	42	42	42	42	47	47	42	42	42	38	38	38	38	38	42	47	47	60	60	47	47	47	42
O3	O3	O3	O3	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	O3	O3	O3	O3	O3	O3	O3	O3	O3

NW	NW	WNW	NW	WNW	WNW	NW	NW	NW	NW	NW	WNW	NW	NW	NW	NW	NNW	NNW	NNW	NNW	NNW	NW	NW	NNW	NNW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	SW	SW	SW	SSW	SSW	SSW	SSW	SSW	SSW	S	S	S	S	S	S	S	S	S	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	WSW	WSW	WSW	WSW	WSW	WSW
8 13	6 9	6 9	5 8	5 8	6 9	5 8	5 8	5 8	5 8	4 7	3 5	5 8	6 9	7 11	7 11	8 13	8 13	9 15	8 13	8 13	8 13	7 12	7 11	5 9	3 5	3 5	3 5	4 7	4 7	3 5	3 5	3 5	3 5	3 5	3 5	4 6	4 7	5 8	5 8	6 9	6 9	6 9	6 9	6 9	6 9	6 9	5 7	3 6	2 4	2 4	2 4	2 4	2 4	2 4	2 4	2 4	2 4	2 4	2 4	2 4	2 4	3 6	5 7	6 9	7 11	7 12	8 13	8 14	9 14	9 15	8 13	7 11	6 9	6 9	5 9	5 8	5 8	5 8	5 8	4 7	4 7	4 6	4 6	4 6	3 5	4 7	5 9	6 10	7 12	8 13	9 15	9 14	8 13	7 11	6 10	6 9
75 24	73 23	70 21	67 20	66 19	65 18	64 18	63 17	61 16	60 16	59 15	58 14	59 15	63 17	65 19	68 20	70 21	72 22	74 23	75 24	76 25	77 25	76 24	75 24	74 23	72 22	68 20	66 19	63 17	61 16	60 15	59 15	57 14	55 13	55 13	55 13	58 14	60 16	64 18	67 19	71 21	72 22	74 23	75 24	76 24	76 24	76 25	75 24	73 23	72 22	69 21	66 19	63 17	62 16	60 16	59 15	58 14	57 14	56 13	58 15	60 16	62 17	67 20	72 22	77 25	79 26	81 27	83 29	84 29	84 29	85 29	83 28	81 27	80 27	78 26	77 25	75 24	74 23	72 22	71 22	71 22	71 22	71 22	71 22	71 22	71 22	73 23	76 24	78 26	81 27	83 29	86 30	85 30	84 29	83 29	83 28	82 28

Source: CAMS