Watertown, Massachusetts Weather Forecast

Local

Watertown, MA, US

42.37093, -71.18283

Air Quality

Updated 9 minutes ago

Good

Primary Pollutant: O3

O3	45 µg/m3 (21)
PM2.5	4 µg/m3 (15)
PM10	8 µg/m3 (7)

CO	224 µg/m3 (2)
NO2	14 µg/m3 (7)
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)
Temple	25	O3	5.1 (21)	8 (7)	n/a	55 (25)	115 (1)	0.524 (0)
Londonderry	26	O3	2.8 (12)	5 (5)	n/a	57 (26)	115 (1)	n/a
Lowell	14	PM2.5	3.5 (14)	n/a	11 (6)	n/a	n/a	n/a
Providence	17	PM2.5	4 (17)	n/a	n/a	n/a	n/a	n/a
Fall River	26	O3	4.1 (17)	n/a	n/a	57 (26)	n/a	1.048 (1)
South Boston	17	PM2.5	4 (17)	n/a	21 (10)	n/a	344 (3)	n/a
Cherry Valley	28	O3	n/a	n/a	n/a	61 (28)	n/a	n/a
Linwood	26	O3	n/a	n/a	n/a	57 (26)	n/a	n/a
Roxbury Crossing	20	O3	3.8 (16)	6 (5)	13 (6)	45 (20)	115 (1)	1.31 (1)
Roxbury Crossing	17	PM2.5	4.1 (17)	n/a	19 (9)	n/a	n/a	0 (0)

Source: New Hampshire Dept. of Environmental Services, Massachusetts Dept. of Environmental Protection, Rhode Island Dept. of Environmental Management

Extended Forecast


Hour
AQI
Primary
Wind Dir

Wind Speed ( mph kmh)
Temp (°F°C)

Friday, Dec 13																					Saturday, Dec 14																								Sunday, Dec 15																								Monday, Dec 16																								Tuesday, Dec 17
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
23	23	22	21	28	29	24	25	25	24	22	22	21	21	24	29	32	29	28	25	25	25	21	21	25	25	25	29	34	38	33	25	26	27	26	27	25	28	37	45	51	50	46	42	37	32	29	29	29	25	25	29	42	29	31	31	32	32	32	33	33	34	35	37	38	39	40	41	55	53	53	53	53	53	55	60	64	64	56	45	38	37	32	30	31	41	42	41	38	35	35	34	35	35	35	36	36
O3	O3	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	PM2.5	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	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	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	PM2.5	O3	O3	PM2.5	PM2.5	PM2.5	PM2.5	O3	O3	O3	O3	O3	O3	O3	O3

W	W	W	W	W	W	W	W	W	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	W	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	NW	NW	NW	NW	NW	NW	NW	NW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NW	NW	NW	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SSE
8 13	8 12	8 12	7 11	7 11	8 13	9 14	10 16	11 18	12 19	12 20	12 19	11 18	11 18	9 14	8 13	7 11	6 9	6 9	5 7	5 7	5 7	4 7	4 7	4 7	3 6	3 6	3 6	3 6	4 7	5 7	6 9	6 9	6 9	6 9	6 9	5 8	4 7	4 6	3 5	2 4	2 4	2 4	2 4	2 4	2 4	2 4	2 4	2 4	2 4	2 4	2 4	2 4	2 4	2 4	2 4	3 4	3 5	3 5	3 5	3 4	2 4	2 4	2 4	2 4	2 4	2 4	2 4	2 4	2 4	2 4	2 4	2 4	2 4	2 4	2 4	2 4	3 5	3 5	4 6	4 7	5 8	6 9	5 8	5 8	5 7	4 7	4 6	3 6	4 6	4 6	4 6	4 7	4 7	4 7	5 8	5 8
25 -3.8	24 -4.4	24 -4.4	24 -4.4	24 -4.4	25 -3.8	26 -3.3	29 -1.6	30 -1.1	31 -0.5	32 0	32 0.1	32 0	30 -1	28 -2.2	26 -3.1	26 -3.3	24 -4.4	23 -5	23 -5	22 -5.4	21 -6	20 -6.5	19 -7.1	19 -7.1	19 -7.3	18 -7.7	17 -8.2	17 -8.2	19 -7.1	23 -5	26 -3.2	29 -1.5	32 0	33 0.6	33 0.6	32 0.1	31 -0.5	30 -1.3	28 -2	27 -2.8	26 -3.3	25 -3.9	24 -4.4	24 -4.6	23 -4.9	23 -5.1	22 -5.5	21 -5.8	21 -6.2	21 -6.3	20 -6.5	20 -6.6	23 -5.2	25 -3.7	28 -2.3	31 -0.8	33 0.7	36 2.2	35 1.9	35 1.5	34 1.2	33 0.4	31 -0.4	30 -1.2	30 -1.2	30 -1.2	30 -1.2	30 -1.2	30 -1.2	30 -1.2	30 -1.1	30 -1	30 -0.9	31 -0.7	31 -0.6	31 -0.5	33 0.6	35 1.7	37 2.9	39 4	41 5.1	43 6.2	42 5.8	42 5.4	41 5	40 4.7	40 4.3	39 3.9	39 4	39 4.1	40 4.2	40 4.3	40 4.4	40 4.5	40 4.7	41 4.9

Source: CAMS, Vaisala Xweather