Detailed local forecast

48-Hour Forecast for Portland, Maine, USA

Hourly temperature, rain, wind, humidity, UV index, visibility, and atmospheric conditions for the next 48 hours.

Last updated Sep 4, 9:04 AM -04:00

Temperature Range 55°F – 77°F Next 48 hours

Feels Like 54°F – 77°F Apparent range

Precipitation 20% 0.01 in total

Humidity 71% 48-hour average

Pressure 29.77 inHg Current

Wind 1 mph N Gusts to 24.5 mph

Dew Point 64°F Current

Visibility 6.2 mi Current

Cloud Cover 100% Current

UV Index 6 high 48-hour peak

Sunrise 6:07 AM Local time

Sunset 7:11 PM EDT UTC-04:00

Local time in Portland

48-Hour Hourly Forecast

Scroll horizontally to compare every hour

Forecast	Today — Fri, Sep 4															Tomorrow — Sat, Sep 5																								Sunday — Sun, Sep 6
Time	Now	10 AM	11 AM	12 PM	1 PM	2 PM	3 PM	4 PM	5 PM	6 PM	7 PM	8 PM	9 PM	10 PM	11 PM	12 AM	1 AM	2 AM	3 AM	4 AM	5 AM	6 AM	7 AM	8 AM	9 AM	10 AM	11 AM	12 PM	1 PM	2 PM	3 PM	4 PM	5 PM	6 PM	7 PM	8 PM	9 PM	10 PM	11 PM	12 AM	1 AM	2 AM	3 AM	4 AM	5 AM	6 AM	7 AM	8 AM
Weather
Temperature °F	65	66	68	72	75	74	77	75	73	72	71	70	68	68	68	67	66	64	63	62	61	61	61	65	66	65	66	68	68	68	69	68	66	68	66	65	65	63	60	59	58	57	58	58	57	55	57	60
Feels Like °F	66	67	69	72	75	74	77	75	73	72	71	69	67	68	67	66	65	64	63	62	61	61	61	64	66	64	65	68	67	68	69	67	65	67	65	64	64	62	60	58	57	56	57	57	56	54	56	59
Precip %	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	20%	20%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%
Rain in	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Wind mph	3.7	3	1.7	0.9	0.9	2.7	1.5	3.8	3.9	2.6	3	3.2	4.8	7.2	8.1	7.6	6.3	6.2	6.6	6.5	6.6	7.1	7.5	9.3	10.6	9.2	9.4	11.6	12.3	11.4	9.5	8	7.8	7.1	7.5	8.5	7.1	7.7	8.1	8.1	7.8	7.9	8.1	7.2	6.2	5.9	6.8	7.8
Gust mph	6.2	5.8	6.6	9	8.7	7.4	8.2	11	12	9	9.4	9.1	13	18.6	19.8	19.2	18.1	18.1	17.4	17.9	18.8	21.9	24.5	20.9	17.9	18	16.3	16.3	17.1	17.2	15.3	14.2	14.3	14.1	16.5	18.7	17.4	18.8	20.3	23.5	22.5	24.5	21.9	19.8	18.6	17.6	16.8	18.6
Wind Direction	NNW	NNW	NNE	NNE	S	SE	SW	NW	NW	WNW	WSW	W	NW	NW	NW	NW	NNW	NNW	N	N	N	N	N	N	NNE	NNE	NNE	NNE	NNE	NNE	NNE	N	NNW	NNW	N	NNE	NNE	NNE	N	N	N	N	NNE	N	NNW	NNW	NNW	N
Humidity %	95	93	86	74	63	64	54	56	62	66	66	69	72	67	66	68	72	76	82	86	88	88	83	71	68	74	71	66	63	59	53	57	64	59	62	63	64	66	73	74	75	77	75	76	79	82	78	69
Pressure inHg	29.77	29.77	29.77	29.77	29.74	29.74	29.74	29.74	29.74	29.74	29.74	29.77	29.77	29.77	29.77	29.74	29.74	29.74	29.74	29.77	29.77	29.77	29.80	29.83	29.83	29.83	29.85	29.83	29.85	29.85	29.85	29.85	29.85	29.88	29.88	29.91	29.91	29.91	29.94	29.94	29.94	29.94	29.94	29.94	29.97	29.97	29.97	30.00
Dew Point °F	64	64	64	63	62	57	57	57	59	60	58	58	58	57	56	56	56	56	57	57	57	57	56	55	55	56	56	56	55	53	52	52	53	53	52	52	52	52	51	50	49	49	49	50	50	50	50	49
Cloud Cover %	100	99	96	83	70	70	100	100	100	100	100	98	31	39	43	39	33	28	5	6	7	9	9	16	90	96	97	94	92	94	100	100	100	96	96	96	98	95	68	54	49	48	100	100	100	94	92	94
Visibility mi	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2
UV Index	1.9	3.4	5	6	3	1.3	1.5	0.7	0.3	0.1	0	0	0	0	0	0	0	0	0	0	0	0	0.2	0.7	1.8	3.2	3.9	2	1.6	1.3	1	0.5	0.4	0.1	0	0	0	0	0	0	0	0	0	0	0	0	0.2	0.6

Best Time Outdoors

Fri, 8 PM

70°F · Rain 0% · Wind 3.2 mph

Rain Window

Sat, 12 PM – 1 PM

Peak chance 20% · 0.01 in

Strongest Winds

Sat, 7 AM

Sustained 7.5 mph · Gust 24.5 mph · N

Overnight Low

Sun, 6 AM

Low 55°F · Feels like 54°F

Weather Forecast for Portland, Maine, USA

The next 48 hours in Portland, Maine, USA currently range from 55°F to 77°F. Rain chances peak at 20%, with 0.01 in of precipitation forecast. The strongest expected wind is 24.5 mph.

What is the weather forecast for Portland for the next 48 hours?

The next 48 hours in Portland, Maine, USA currently range from 55°F to 77°F. Rain chances peak at 20%, with 0.01 in of precipitation forecast. The strongest expected wind is 24.5 mph.

Will it rain in Portland during the next 48 hours?

Rain chances remain limited, peaking at 20% during the next 48 hours.

What will be the highest temperature in Portland?

The highest hourly temperature currently forecast is 77°F.

When will winds be strongest in Portland?

Sustained 7.5 mph · Gust 24.5 mph · N

Current Conditions

65°F Clouds Feels like 66°F

Humidity: 95%
Wind: 1 mph N
UV Index: 1.9 low

Location Details

Portland, Maine, USA

Latitude: 43.6591° N
Longitude: 70.2568° W
Timezone: EDT (UTC-04:00)
Units: Imperial

Air Quality

29 Good

Primary pollutant: PM2.5
Concentration: 5.3 µg/m³
OpenWeather AQI: 1 / 5

Weather Alerts

No active alertsNo official weather alerts for Portland.

View alerts on the weather dashboard