Ashburn, Virginia Weather Forecast

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Ashburn, VA, US

39.04372, -77.48749

Air Quality

Updated an hour ago

Good

Primary Pollutant: O3

O3	40 µg/m3 (19)
PM2.5	1 µg/m3 (4)
CO	387 µg/m3 (4)

NO2	7 µg/m3 (3)
SO2	1 µg/m3 (1)

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

Nearby Stations

Station	AQI	Primary Pollutant	PM2.5 (AQI)	PM10 (AQI)	NO2 (AQI)	OZONE (AQI)	CO (AQI)	SO2 (AQI)
Rose Hill	21	O3	3.2 (13)	5 (5)	n/a	46 (21)	n/a	1.048 (1)
Ridgeway	17	O3	3.9 (16)	7 (6)	n/a	36 (17)	n/a	n/a
Haymarket	20	O3	n/a	n/a	n/a	44 (20)	n/a	n/a
Sumerduck	19	O3	n/a	n/a	n/a	42 (19)	n/a	n/a
Ashburn	19	O3	n/a	n/a	n/a	40 (19)	n/a	n/a
Garrisonville	22	O3	n/a	n/a	n/a	48 (22)	n/a	n/a
Claremont	20	O3	n/a	n/a	n/a	44 (20)	229 (2)	n/a
Martinsburg	20	O3	n/a	n/a	n/a	44 (20)	n/a	n/a
Washington D.C.	12	PM2.5	3 (12)	n/a	n/a	n/a	n/a	n/a
Washington D.C.	21	O3	1 (4)	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)

Friday, Sep 29				Saturday, Sep 30																								Sunday, Oct 1																								Monday, Oct 2																								Tuesday, Oct 3
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	8pm
10	9	8	8	8	10	10	9	7	8	8	7	7	8	9	10	11	12	13	13	13	13	12	11	9	8	7	6	6	6	6	6	6	7	7	7	7	6	8	10	12	12	12	12	12	12	11	9	8	8	8	8	10	10	10	10	10	9	7	8	8	10	10	12	11	13	15	16	17	15	15	18	20	22	24	25	26	26	25	26	26	27	27	27	29	29	24	20	16	18	19	19	20	20	18	24	29
O3	O3	O3	O3	O3	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	PM2.5	PM2.5	PM2.5	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	O3	O3	O3	PM2.5	PM2.5	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	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	O3	O3	O3	O3	O3	O3	O3	PM2.5	PM2.5

N	N	N	N	N	N	NNW	N	N	NNW	NNW	NNW	NNW	N	N	N	N	N	N	N	N	NNE	NNE	NNE	NNE	NNE	N	N	N	N	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	N	N	N	NNE	NNE	NNE	NNE	NNE	NNE	NE	NE	NE	NE	NE	NE	NW	NW	NW	NW	NW	NW	NNW	NNW	NNW	NNW	NNW	NNW	NNE	NNE	NNE	NNE	NNE	NNE	E
7 11	6 9	6 9	6 9	6 9	6 9	6 9	6 9	6 9	6 9	6 9	6 9	6 9	7 11	9 14	10 16	10 16	10 16	10 16	9 15	9 14	8 13	7 11	6 9	4 7	3 5	2 4	3 5	3 5	3 5	4 7	4 7	4 7	4 7	4 7	5 7	6 9	7 11	8 13	9 14	9 15	10 16	10 16	10 16	9 15	9 14	8 13	7 11	6 9	5 8	5 8	4 7	4 7	4 7	4 7	4 7	4 7	4 7	5 8	5 8	6 9	6 10	6 10	7 11	7 11	7 12	8 13	7 12	7 11	7 11	6 10	6 10	6 9	5 8	5 8	4 7	4 7	4 6	3 5	3 5	3 5	3 5	3 5	3 5	3 5	4 6	4 7	4 7	5 8	5 8	6 9	5 9	5 8	5 8	5 8	5 7	4 7
64 18	63 17	62 17	61 16	60 16	59 15	59 15	58 15	58 15	58 15	58 15	58 14	59 15	61 16	64 18	66 19	67 20	69 21	70 21	70 21	71 22	70 21	68 20	66 19	65 18	63 17	62 17	61 16	60 16	59 15	58 15	57 14	57 14	56 13	56 13	56 13	57 14	61 16	65 18	69 21	71 22	73 23	75 24	75 24	76 24	76 25	73 23	71 22	68 20	66 19	64 18	62 17	61 16	61 16	60 16	59 15	59 15	58 15	58 15	58 15	58 15	62 17	67 19	71 22	73 23	76 24	78 26	78 25	77 25	77 25	74 24	72 22	69 21	68 20	66 19	65 18	64 18	62 17	61 16	61 16	61 16	61 16	60 16	60 16	60 16	63 17	66 19	69 20	71 22	74 23	77 25	76 24	74 24	73 23	72 22	70 21	69 21

Source: CAMS, Vaisala Xweather