St. Catharines, Ontario Weather Forecast | AerisWeather

Local

St. Catharines, ON, Canada

43.17126, -79.24267

Air Quality

Updated 13 minutes ago

55

Moderate

Primary Pollutant: PM2.5

O3	64 µg/m3 (29)
PM2.5	14 µg/m3 (55)
PM10	30 µg/m3 (27)

CO	364 µg/m3 (4)
NO2	19 µg/m3 (9)
SO2	4 µg/m3 (2)

Source: CAMS, Vaisala Xweather

Nearby Stations

Station	AQI	Primary Pollutant	PM2.5 (AQI)	PM10 (AQI)	NO2 (AQI)	OZONE (AQI)	CO (AQI)	SO2 (AQI)
Tonawanda	43	PM2.5	10 (43)	n/a	n/a	n/a	n/a	n/a
Buffalo	19	PM2.5	4.6 (19)	n/a	n/a	n/a	n/a	n/a
Dunkirk	18	O3	n/a	n/a	n/a	39 (18)	n/a	n/a
Amherst	24	O3	n/a	n/a	n/a	53 (24)	n/a	n/a
Middleport	16	O3	n/a	n/a	n/a	35 (16)	n/a	n/a
St. Catharines	45	PM2.5	11 (45)	n/a	7.52 (4)	55 (25)	n/a	n/a
Hamilton	110	PM2.5	39 (110)	n/a	26 (13)	37 (17)	n/a	n/a
Toronto	25	O3	6 (25)	n/a	24 (12)	55 (25)	n/a	n/a
Hamilton	72	PM2.5	22 (72)	n/a	28 (14)	22 (10)	n/a	n/a
Toronto	28	O3	6 (25)	n/a	11 (6)	61 (28)	n/a	n/a

Source: New York Dept. of Environmental Conservation, Ontario Ministry of the Environment

Extended Forecast


Hour
AQI
Primary
Wind Dir

Wind Speed ( mph kmh)
Temp (°F°C)

Saturday, May 18	Sunday, May 19																								Monday, May 20																								Tuesday, May 21																								Wednesday, May 22
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	10pm	11pm
54	62	64	69	28	27	23	21	19	21	25	29	30	38	44	47	48	51	51	48	43	38	33	31	27	28	30	33	37	47	53	57	61	62	43	37	41	47	51	59	81	76	64	51	46	40	33	31	30	37	45	57	63	69	69	67	63	56	50	52	49	60	67	76	112	123	127	101	87	73	63	62	59	54	51	47	46	45	46	44	42	42	43	48	58	69	79	89	85	81	78	71	64	57	52	49	48
PM2.5	PM2.5	PM2.5	PM2.5	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	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	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	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

E	NW	NW	NW	NW	NW	ESE	SE	SSW	SSW	WSW	W	NW	N	NNE	ENE	NE	E	SE	S	SW	SSW	SSW	SSW	SSW	SW	WSW	SW	S	SSE	S	SSW	W	NNW	W	W	NNW	N	NNE	NNE	NE	ENE	E	ESE	SSE	S	S	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SW	SW	SW	SW	SSW	SW	SW	SW	SW	SW	SW	SSW	SSW	S	SSW	SSW	S	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SSW	SSW	SSW
4 6	0 1	3 4	4 6	4 6	1 2	0 1	1 2	1 2	2 3	2 4	2 3	3 4	2 3	2 3	2 3	3 4	3 5	3 5	5 8	3 6	3 5	5 8	7 11	7 12	6 10	4 7	2 4	0 0	1 2	1 2	1 2	1 2	1 1	1 1	1 2	2 3	3 4	3 5	4 6	2 4	2 4	2 4	2 4	2 4	4 6	5 7	6 10	7 11	7 12	8 12	9 14	11 17	14 22	16 25	16 26	16 26	16 25	16 25	14 23	13 21	13 22	16 25	17 28	17 27	17 28	16 26	14 23	12 20	10 16	10 15	9 15	10 16	10 16	10 16	11 17	12 19	13 21	14 22	15 24	16 26	17 27	17 28	17 28	18 29	20 32	20 33	22 35	20 32	20 32	18 29	18 30	19 31	19 31	19 31	18 29	17 27
54 12.2	54 12.1	53 11.8	53 11.7	53 11.7	53 11.7	53 11.7	53 11.8	54 12.3	57 13.7	61 15.9	64 17.9	67 19.5	69 20.7	71 21.6	72 22.5	75 23.7	78 25.6	79 26.3	79 25.9	76 24.6	72 22.5	70 21	66 18.8	63 17.1	60 15.4	59 14.8	58 14.4	57 13.7	56 13.3	55 12.9	55 12.8	57 13.8	61 15.9	63 17.2	64 18	66 18.8	66 19	66 19	66 19.1	68 19.8	69 20.5	70 21.1	70 21.2	70 21.3	70 21.3	69 20.3	67 19.4	65 18.4	65 18.2	64 18	64 17.8	65 18.1	65 18.3	65 18.5	66 19.1	67 19.7	69 20.3	71 21.4	73 22.6	75 23.7	76 24.3	77 24.8	78 25.3	78 25.5	78 25.7	79 25.9	77 24.9	75 24	74 23.1	72 22.1	70 21.1	68 20.1	68 19.8	67 19.7	67 19.5	67 19.5	67 19.4	67 19.4	68 20	69 20.6	70 21.2	72 22.3	74 23.4	76 24.5	76 24.7	77 24.8	77 25	77 24.8	76 24.6	76 24.4	75 23.7	73 23	72 22.3	71 21.7	70 21	69 20.3

Source: CAMS, Vaisala Xweather

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