Chesterfield, Missouri Weather Forecast | AerisWeather

Local

Chesterfield, MO, US

38.66311, -90.57707

Air Quality

Updated 36 minutes ago

101

Unhealthy for Sensitive Groups

Primary Pollutant: PM2.5

O3	63 µg/m3 (28)
PM2.5	36 µg/m3 (101)
PM10	22 µg/m3 (20)

CO	528 µg/m3 (5)
NO2	21 µg/m3 (11)
SO2	8 µg/m3 (4)

Source: CAMS, Vaisala Xweather

Nearby Stations

Station	AQI	Primary Pollutant	PM2.5 (AQI)	PM10 (AQI)	NO2 (AQI)	OZONE (AQI)	CO (AQI)	SO2 (AQI)
Alton	21	PM2.5	5.2 (21)	n/a	n/a	n/a	n/a	n/a
Jerseyville	16	PM2.5	3.8 (16)	n/a	n/a	n/a	n/a	n/a
Granite City	30	PM2.5	7.3 (30)	n/a	n/a	n/a	n/a	n/a
Wood River	19	PM2.5	4.7 (19)	n/a	n/a	n/a	n/a	n/a
East Saint Louis	47	PM2.5	11 (47)	n/a	n/a	n/a	n/a	n/a
Earth City	8	NO2	n/a	n/a	16 (8)	n/a	n/a	2.882 (2)
Brooklyn	27	O3	5.7 (24)	11 (10)	12 (6)	59 (27)	229 (2)	2.096 (1)
Brooklyn	19	PM2.5	4.6 (19)	11 (10)	n/a	n/a	n/a	n/a
Lemay	38	PM2.5	9.1 (38)	n/a	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)

Saturday, Jan 11														Sunday, Jan 12																								Monday, Jan 13																								Tuesday, Jan 14																								Wednesday, Jan 15
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	4am	5am	6am	7am	8am	9am	10am
44	49	52	53	36	35	33	36	34	30	32	33	33	34	33	33	33	33	33	32	32	31	31	30	31	31	31	30	29	29	32	31	31	30	31	31	31	30	29	28	28	28	27	26	25	24	22	24	26	26	28	28	28	32	32	30	51	29	29	29	29	29	29	29	29	29	29	29	30	52	55	54	52	47	43	42	35	34	33	33	36	38	42	42	42	43	43	44	42	46	46	47	50	52	54	56	54
PM2.5	PM2.5	PM2.5	PM2.5	O3	O3	O3	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	O3	O3	O3	O3	O3	O3	O3	O3	O3	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	O3	PM2.5	PM2.5	O3	PM2.5	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	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

SW	SSW	SSW	S	S	S	SSE	SSE	SSE	SSE	S	S	S	S	S	S	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SW	SW	SW	WSW	WSW	W	W	W	WNW	W	W	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	W	W	W	W	W	W	WSW	WSW	WSW	WSW	WSW
4 7	5 8	6 9	7 11	7 11	8 13	8 13	8 13	8 13	8 13	8 13	8 12	7 11	7 11	7 11	7 11	7 11	7 11	7 11	8 13	8 13	8 13	8 13	9 14	9 14	9 14	9 14	10 15	10 15	9 14	9 14	9 14	7 11	7 11	7 11	7 11	7 11	6 10	6 10	6 10	6 10	6 10	6 10	6 10	7 11	7 11	7 12	8 12	8 13	9 14	9 15	9 15	9 15	9 14	8 13	7 11	6 9	6 9	6 9	6 9	6 9	5 9	5 9	5 9	5 8	5 8	5 8	5 8	5 8	5 8	6 9	6 9	6 10	6 10	7 11	6 10	6 9	5 8	4 7	4 6	3 5	3 5	3 5	3 5	3 4	2 4	2 4	2 4	2 4	2 4	2 4	3 4	3 4	3 5	4 6	4 7	5 7
26 -3.3	29 -1.6	32 0.1	35 1.7	35 1.7	36 2	36 2.2	34 1.2	33 0.6	32 0	30 -0.9	30 -1.2	29 -1.6	30 -1.2	29 -1.8	29 -1.8	29 -1.8	28 -2.5	28 -2.5	28 -2.3	28 -2.3	29 -1.6	30 -1	32 -0.2	33 0.6	35 1.7	37 2.5	37 2.5	37 2.7	37 2.7	36 2.2	35 1.7	33 0.6	32 0	31 -0.6	30 -1.3	29 -1.7	28 -2.5	26 -3.3	25 -4	23 -4.8	22 -5.5	21 -6.3	19 -7	18 -7.8	18 -7.7	18 -7.7	18 -7.6	20 -6.8	21 -6	23 -5.2	23 -4.8	24 -4.3	25 -3.8	23 -4.7	22 -5.7	20 -6.6	19 -7	19 -7.5	18 -7.9	17 -8.3	16 -8.7	16 -9.1	16 -9.1	16 -9.1	16 -9.1	16 -9.1	16 -9.1	16 -9.1	17 -8.5	18 -7.9	19 -7.3	20 -6.7	21 -6.1	22 -5.5	22 -5.8	21 -6.1	20 -6.4	20 -6.7	19 -7	19 -7.3	18 -7.8	17 -8.3	16 -8.8	15 -9.3	14 -9.8	13 -10.3	13 -10.4	13 -10.5	13 -10.6	13 -10.7	13 -10.8	12 -10.8	15 -9.7	17 -8.5	19 -7.3	21 -6.2

Source: CAMS, Vaisala Xweather

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