Saint Louis, Missouri Weather Forecast | AerisWeather

Local

Saint Louis, MO, US

38.631974, -90.191176

Air Quality

Updated 34 minutes ago

25

Good

Primary Pollutant: O3

O3	56 µg/m3 (25)
PM2.5	3 µg/m3 (12)
PM10	17 µg/m3 (15)

CO	170 µg/m3 (2)
NO2	6 µg/m3 (3)
SO2	1 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)
Jerseyville	9	PM2.5	2.2 (9)	n/a	n/a	n/a	n/a	n/a
Granite City	14	PM2.5	3.3 (14)	n/a	n/a	n/a	n/a	n/a
Baldwin	15	PM2.5	3.7 (15)	n/a	n/a	n/a	n/a	n/a
Wood River	13	PM2.5	3.1 (13)	n/a	n/a	n/a	n/a	n/a
East Saint Louis	13	PM2.5	3.2 (13)	n/a	n/a	n/a	n/a	n/a
Earth City	1	NO2	n/a	n/a	2.256 (1)	n/a	n/a	1.834 (1)
Brooklyn	24	O3	0.9 (4)	11 (10)	3.384 (2)	53 (24)	115 (1)	1.572 (1)
Brooklyn	18	PM10	2.5 (10)	20 (18)	n/a	n/a	n/a	n/a
Lemay	16	PM2.5	3.9 (16)	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 18												Sunday, Jan 19																								Monday, Jan 20																								Tuesday, Jan 21																								Wednesday, Jan 22
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	11am	12pm
33	32	30	28	26	25	25	27	28	30	30	31	31	32	33	33	33	33	33	33	33	34	34	34	34	34	33	33	34	32	29	27	26	26	28	29	29	27	24	24	32	41	49	55	64	63	41	29	29	29	29	30	29	29	25	27	26	25	24	25	25	26	26	26	26	27	26	29	29	29	30	31	32	33	34	34	34	33	33	33	38	46	52	50	42	38	33	29	27	27	27	27	28	28	30	31	32
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	PM2.5	PM2.5	PM2.5	O3	O3	PM2.5	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	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

NNW	NNW	N	N	N	N	NNW	N	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	WNW	WNW	WNW	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	W	W	W	W	W	W	W	W	W	W	W	W	SSE	SSE	SSE	SSE	SSE	SSE	S	S	S	S	S	S	S
15 24	15 23	13 22	13 22	12 20	11 18	11 18	11 18	12 20	13 22	13 22	14 22	13 22	13 22	14 22	14 23	14 23	14 22	15 23	15 23	15 25	16 25	17 27	17 27	17 27	16 26	16 26	16 25	15 24	13 22	10 16	9 14	9 14	7 12	7 11	6 10	6 9	5 8	5 8	4 7	4 6	3 5	3 5	4 6	5 7	5 9	6 9	6 10	7 11	7 11	7 11	7 11	6 10	5 8	4 7	5 7	5 8	5 8	5 8	5 8	5 9	5 8	5 8	5 8	5 8	5 7	4 7	5 8	5 8	6 9	6 10	6 10	7 11	6 10	6 9	5 8	4 7	4 6	3 5	4 6	4 7	4 7	5 8	5 8	6 9	6 9	6 10	6 10	6 10	6 10	7 11	7 11	8 12	8 13	9 14	9 15	10 16
30 -0.9	30 -0.9	30 -1.2	30 -1.2	30 -0.9	28 -2.3	28 -2.3	27 -2.6	26 -3.3	25 -3.8	25 -3.8	24 -4.4	23 -5	21 -6.2	21 -6.2	19 -7.1	19 -7.3	17 -8.1	16 -8.8	15 -9.4	14 -10	15 -9.4	15 -9.4	16 -9	16 -8.8	17 -8.3	17 -8.3	17 -8.1	17 -8.6	16 -8.8	15 -9.4	14 -10	14 -10.1	13 -10.6	12 -11.2	11 -11.7	10 -12.4	9 -12.6	9 -12.7	9 -12.9	9 -12.9	9 -13	9 -13	10 -12.5	11 -11.9	11 -11.4	13 -10.3	15 -9.2	17 -8.1	19 -7.4	20 -6.6	21 -5.9	21 -6.4	20 -6.8	19 -7.3	18 -7.7	18 -8	17 -8.4	16 -8.7	16 -9.1	15 -9.4	14 -9.8	14 -10.2	13 -10.6	12 -10.9	12 -11.3	11 -11.7	12 -11.1	13 -10.6	14 -10	15 -9.4	16 -8.9	17 -8.3	17 -8.1	18 -8	18 -7.8	18 -7.6	19 -7.5	19 -7.3	18 -7.7	18 -8	17 -8.4	16 -8.8	16 -9.1	15 -9.5	15 -9.4	15 -9.3	16 -9.2	16 -9	16 -8.9	16 -8.8	19 -7.4	21 -5.9	24 -4.5	27 -3.1	29 -1.6	32 -0.2

Source: CAMS, Vaisala Xweather

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