Ashburn, Virginia Weather Forecast

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Ashburn, VA, US

39.04372, -77.48749

Air Quality

Updated a few seconds ago

Good

Primary Pollutant: PM2.5

O3	19 µg/m3 (9)
PM2.5	4 µg/m3 (17)
CO	149 µg/m3 (1)

NO2	0 µg/m3 (0)
SO2	4 µg/m3 (1)

Source: AirNow (EPA), Virginia Dept. of Environmental Quality, US EPA AirNow, OpenAQ, CAMS

Nearby Stations

Station	AQI	Primary Pollutant	PM2.5 (AQI)	PM10 (AQI)	NO2 (AQI)	OZONE (AQI)	CO (AQI)	SO2 (AQI)
Claremont	20	O3	n/a	n/a	n/a	44 (20)	229 (2)	n/a
Rose Hill	27	PM2.5	6.6 (27)	11 (10)	n/a	44 (20)	n/a	0 (0)
Sumerduck	18	O3	n/a	n/a	n/a	40 (18)	n/a	n/a
Ridgeway	22	O3	3.8 (16)	9 (8)	n/a	48 (22)	n/a	n/a
Ashburn	17	O3	n/a	n/a	n/a	38 (17)	n/a	n/a
Haymarket	19	O3	n/a	n/a	n/a	42 (19)	n/a	n/a
Garrisonville	19	O3	n/a	n/a	n/a	42 (19)	n/a	n/a
Martinsburg	24	O3	n/a	n/a	n/a	52 (24)	n/a	n/a
Washington D.C.	25	PM2.5	6 (25)	n/a	n/a	n/a	n/a	n/a
Fairmount Heights	21	O3	4 (17)	n/a	n/a	46 (21)	n/a	n/a

Source: AirNow (EPA), Virginia Dept. of Environmental Quality, West Virginia Division of Air Quality - Wheeling, District of Columbia - Department of Energy and Environment

Extended Forecast


Hour
AQI
Primary
Wind Dir

Wind Speed ( mph kmh)
Temp (°F°C)

Thursday, May 26			Friday, May 27																								Saturday, May 28																								Sunday, May 29																								Monday, May 30
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	8pm	9pm
23	22	21	21	21	21	21	22	22	23	22	21	17	17	18	21	26	24	21	19	19	17	15	14	14	14	14	15	15	15	16	17	18	18	17	14	11	13	13	15	17	19	17	18	18	18	20	23	26	29	31	33	34	36	39	41	41	41	41	41	32	28	27	28	28	29	28	28	28	28	31	35	38	38	38	38	38	38	38	38	39	40	41	41	41	41	39	34	33	32	33	32	32	32	33	37	38
PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	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	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5

SE	SE	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SSE	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	SSW	SW	SW	WSW	WSW	WSW	W	W	W	W	W	W	W	W	W	W	W	W	W	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	NW	NW	NW	NW	NW	NW	NNW	NNW	NNW	SSW	SSW	SSW	SSW	SSW	SSW	S	S	S	SSE	SSE	SSE	SSE	SSE	SSE	S	S	S	S	S	S	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	S	S
7 11	7 11	7 11	6 9	6 9	6 9	7 11	7 11	7 11	8 13	8 13	8 13	9 15	9 15	9 15	11 18	13 21	13 21	13 21	13 21	11 18	13 20	10 16	7 11	6 9	6 9	6 9	6 9	5 8	5 8	5 8	5 8	5 8	5 8	5 8	6 9	7 12	9 14	10 17	10 17	10 17	10 17	10 16	10 15	9 15	8 13	7 11	6 9	5 9	5 8	5 8	4 6	3 5	2 4	2 4	2 4	2 4	2 4	2 4	2 4	2 4	2 4	2 4	3 4	3 5	3 5	4 6	4 7	5 8	4 6	3 5	2 4	2 4	3 4	3 5	3 5	3 5	3 5	3 5	3 5	3 5	3 4	2 4	2 4	2 4	3 4	3 5	3 5	3 5	3 5	3 5	3 5	3 5	3 5	3 5	3 5	3 5
69 21	68 20	67 19	68 20	67 19	67 19	67 19	67 19	67 19	67 19	68 20	69 21	71 22	71 22	71 22	72 22	72 22	71 22	72 22	72 22	72 22	74 23	73 23	72 22	70 21	69 20	67 19	67 19	66 19	65 18	64 18	63 17	63 17	63 17	63 17	64 18	67 19	69 21	72 22	73 23	75 24	76 24	76 25	77 25	77 25	76 24	74 23	73 23	71 21	68 20	66 19	64 18	63 17	61 16	60 16	60 15	59 15	61 16	62 17	64 18	67 20	71 21	74 23	76 24	78 26	80 27	81 27	81 27	82 28	80 27	79 26	77 25	75 24	73 23	71 22	70 21	68 20	66 19	66 19	67 19	67 20	68 20	68 20	69 21	72 22	75 24	78 26	81 27	84 29	87 31	86 30	86 30	85 29	84 29	84 29	83 28	81 27

Source: CAMS