Alton, Illinois Weather Forecast | AerisWeather

Local

Alton, IL, US

38.8906, -90.18428

Air Quality

Updated an hour ago

50

Good

Primary Pollutant: PM2.5

O3	74 µg/m3 (33)
PM2.5	12 µg/m3 (50)
PM10	22 µg/m3 (20)

CO	293 µg/m3 (3)
NO2	8 µg/m3 (4)
SO2	3 µg/m3 (1)

Source: CAMS, Vaisala Xweather

Nearby Stations

Station	AQI	Primary Pollutant	PM2.5 (AQI)	PM10 (AQI)	NO2 (AQI)	OZONE (AQI)	CO (AQI)	SO2 (AQI)
Alton	45	PM2.5	11 (45)	n/a	n/a	49 (22)	n/a	n/a
Jerseyville	40	PM2.5	9.7 (40)	n/a	n/a	63 (29)	n/a	n/a
Granite City	52	PM2.5	13 (52)	n/a	n/a	n/a	n/a	n/a
Wood River	48	PM2.5	12 (48)	n/a	n/a	31 (14)	n/a	n/a
Nilwood	21	O3	n/a	n/a	n/a	47 (21)	n/a	n/a
East Saint Louis	47	PM2.5	11 (47)	n/a	n/a	59 (27)	n/a	n/a
Foley	36	O3	n/a	n/a	n/a	78 (36)	n/a	n/a
Earth City	3	NO2	n/a	n/a	6.016 (3)	n/a	n/a	0.524 (0)
Brooklyn	48	PM2.5	12 (48)	22 (20)	15 (8)	61 (28)	344 (3)	1.572 (1)
Brooklyn	23	PM10	5.5 (23)	25 (23)	n/a	n/a	n/a	n/a

Source: Illinois EPA, Missouri Department of Natural Resources

Extended Forecast


Hour
AQI
Primary
Wind Dir

Wind Speed ( mph kmh)
Temp (°F°C)

Sunday, Oct 6																					Monday, Oct 7																								Tuesday, Oct 8																								Wednesday, Oct 9																								Thursday, Oct 10
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	10pm	11pm	12am	1am	2am	3am
57	55	54	53	52	30	23	25	28	31	32	33	35	35	34	31	27	24	21	20	20	18	18	17	16	15	15	15	14	14	18	22	25	29	32	34	35	35	34	32	25	21	19	17	18	20	21	21	25	29	25	29	25	23	23	23	24	25	26	28	31	35	39	41	41	39	36	31	47	47	47	46	46	46	46	46	46	52	52	46	43	42	46	47	48	50	46	50	56	57	57	56	53	52	50	50	47
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	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	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	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

SW	SW	WSW	WSW	W	WNW	NNW	NNW	NNW	NW	NW	NW	NW	NW	NW	NW	NNW	NNW	NNW	NNW	NNW	N	N	N	N	N	N	N	N	N	NNE	NNE	NNE	N	N	N	N	N	N	N	N	N	N	NNE	NNE	NNE	NNE	NNE	NNE	N	N	N	N	N	N	NE	NE	NE	ENE	ENE	ENE	NNE	NNE	NNE	E	E	E	E	E	E	SSE	SSE	SSE	SSE	SSE	SSE	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SSE
5 9	5 9	6 9	6 9	6 10	7 11	9 14	10 16	10 16	11 18	12 19	12 20	13 21	13 22	12 20	10 16	8 13	8 13	8 13	8 12	7 11	7 11	6 10	6 9	6 9	6 9	6 9	5 8	5 8	5 9	6 9	7 11	6 9	6 10	7 11	7 12	8 12	8 12	7 11	6 9	4 7	4 6	3 5	2 4	2 4	2 4	2 4	2 3	2 3	1 2	2 3	2 3	2 4	2 4	2 4	2 4	3 5	4 6	4 7	4 7	4 7	4 7	4 7	4 6	3 5	3 5	3 4	2 4	2 3	2 3	1 2	2 3	2 3	2 3	2 3	2 3	2 4	3 4	3 5	4 6	4 7	5 8	5 9	5 8	5 8	5 8	5 8	5 7	4 7	4 7	4 6	3 5	3 5	3 4	2 4	2 4	2 4
68 20	68 20	67 19.4	66 18.8	66 18.8	67 19.5	72 22	74 23.6	77 25	79 26.2	80 26.7	81 27.1	80 26.6	80 26.6	77 24.9	75 23.7	70 21.2	67 19.3	63 17.3	62 16.7	59 15.1	58 14.4	56 13.4	54 12.3	53 11.8	52 11.2	50 10	49 9.5	48 8.8	51 10.4	56 13.3	60 15.4	63 17.1	65 18.5	68 19.9	70 21	70 21	70 21	67 19.7	65 18.4	63 17.1	60 15.6	57 14.1	55 12.7	53 11.8	52 10.9	50 10	49 9.5	48 8.9	47 8.4	46 8	46 7.6	45 7.2	50 10.1	56 13.1	61 16	64 17.9	67 19.7	71 21.6	71 21.7	71 21.9	72 22.1	69 20.8	67 19.5	65 18.2	63 17.1	61 16	59 14.9	57 13.9	55 12.8	53 11.7	52 11.2	51 10.7	50 10.3	50 9.8	49 9.3	48 8.8	52 11.2	56 13.6	61 16	65 18.4	69 20.8	74 23.2	73 22.7	72 22.1	71 21.6	70 21.1	69 20.5	68 20	66 18.9	64 17.8	62 16.7	60 15.6	58 14.5	56 13.4	55 13	55 12.6

Source: CAMS, Vaisala Xweather

Powered by Vaisala Xweather