Portland, Maine Weather Forecast

Local

Portland, ME, US

43.65737, -70.2589

Air Quality

Updated an hour ago

Good

Primary Pollutant: O3

O3	52 µg/m3 (24)
PM2.5	3 µg/m3 (12)
PM10	7 µg/m3 (6)

CO	143 µg/m3 (1)
NO2	5 µg/m3 (3)
SO2	0 µg/m3 (0)

Source: CAMS, Vaisala Xweather

Nearby Stations

Station	AQI	Primary Pollutant	PM2.5 (AQI)	PM10 (AQI)	NO2 (AQI)	OZONE (AQI)	CO (AQI)	SO2 (AQI)
Portsmouth	27	O3	2.9 (12)	6 (5)	n/a	59 (27)	n/a	2.096 (1)
Cape Elizabeth	26	O3	n/a	n/a	n/a	57 (26)	n/a	n/a
Portland	21	PM2.5	5 (21)	n/a	n/a	n/a	n/a	n/a
Lewiston	3	PM10	n/a	3 (3)	n/a	n/a	n/a	n/a
Shapleigh	29	O3	n/a	n/a	n/a	63 (29)	n/a	n/a
Portland	12	PM2.5	2.9 (12)	5 (5)	n/a	n/a	n/a	n/a
Portsmouth	29	O3	2.7 (11)	6 (5)	n/a	63 (29)	n/a	1.834 (1)
Shapleigh	29	O3	n/a	n/a	n/a	63 (29)	n/a	n/a
Portland	25	O3	5 (21)	n/a	5.828 (3)	55 (25)	n/a	2.62 (1)
Lewiston	8	PM2.5	2 (8)	3 (3)	n/a	n/a	n/a	n/a

Source: New Hampshire Dept. of Environmental Services, Maine Dept. of Environmental Protection, Unknown Governmental Organization

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
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	12am	1am
26	26	26	25	25	25	24	23	21	22	23	23	25	26	25	24	23	22	22	22	22	21	21	21	20	20	20	21	21	22	24	24	23	25	27	29	30	31	30	28	25	26	26	24	24	24	25	24	25	29	29	29	29	33	42	23	24	25	25	26	27	27	27	27	28	28	29	29	30	30	29	33	38	43	46	48	50	50	51	51	49	42	33	30	30	30	30	29	29	29	29	31	32	34	35	36	38
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	O3	O3	O3	O3	O3	O3	O3	O3	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	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	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3

W	W	W	W	W	WSW	WSW	W	W	W	W	W	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	NW	NW	NW	NW	NW	NW	NW	NNW	NNW	NNW	NNW	NNW	NNW	N	N	N	N	N	N	S	S	S	WNW	WNW	WNW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	S
11 18	11 18	9 15	8 13	8 13	6 10	7 11	8 13	9 14	9 15	9 15	12 20	14 23	15 24	13 21	12 20	10 16	11 18	11 18	10 16	8 13	8 13	7 11	6 9	5 7	4 7	4 7	4 7	4 7	4 7	4 7	5 8	6 9	6 9	7 11	7 11	8 12	7 12	7 11	6 10	6 10	6 9	6 9	6 9	5 9	5 8	5 8	4 7	4 6	4 6	4 6	4 6	4 6	3 6	3 5	4 6	4 6	4 7	4 7	4 7	4 7	4 7	4 7	4 7	4 7	4 6	4 6	4 7	4 7	5 7	5 8	5 8	6 9	6 9	6 9	6 9	6 9	6 10	6 10	7 10	7 11	7 12	8 13	8 14	9 14	8 14	8 13	7 12	7 11	7 10	6 10	6 10	6 10	6 10	6 10	6 10	6 10
29 -1.6	29 -1.7	28 -2.2	28 -2.2	28 -2.3	27 -2.8	26 -3.1	26 -3.3	27 -2.8	27 -2.8	28 -2.3	29 -1.5	30 -1.2	30 -0.9	29 -1.4	29 -1.5	28 -2.3	26 -3.1	26 -3.6	25 -3.7	24 -4.3	23 -4.8	22 -5.3	22 -5.5	21 -6.1	20 -6.4	20 -6.5	19 -7	19 -7.5	19 -7.5	18 -8	20 -6.9	23 -5.3	25 -4.1	27 -3	28 -2.2	30 -1.1	30 -1.2	30 -1.3	29 -1.4	28 -2	27 -2.6	26 -3.1	25 -3.7	25 -4.2	24 -4.7	23 -5	23 -5.3	22 -5.6	21 -6.1	20 -6.7	19 -7.2	19 -7.5	18 -7.8	18 -8	20 -6.7	22 -5.4	25 -4.1	27 -3	29 -1.9	31 -0.8	31 -0.7	31 -0.6	31 -0.5	31 -0.7	30 -0.9	30 -1.1	29 -1.4	29 -1.8	28 -2.1	28 -2.4	27 -2.7	26 -3.1	27 -2.8	27 -2.5	28 -2.3	28 -2	29 -1.8	29 -1.5	31 -0.5	33 0.4	34 1.4	36 2.3	38 3.3	40 4.2	39 4.1	39 3.9	39 3.8	39 3.7	38 3.5	38 3.4	38 3.5	38 3.6	39 3.6	39 3.7	39 3.8	39 3.9

Source: CAMS, Vaisala Xweather