Weather Forecast for Portland
Maine, United States of America
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Current Weather - Portland: 23°C
Current Weather - Portland: 23°C
Maine, United States of America
Patchy rain nearby
Feels like 22°C
Wind
26 km/h WSW
Humidity
76%
Pressure
1006 mb
UV Index
2
Visibility
10 km
Overcast
Thursday, September 10, 2026
High
29°C
Low
18°C
Rain Chance
77%
Hourly Forecast
27°C
26°C
25°C
24°C
22°C
21°C
20°C
19°C
18°C
Day Statistics
Maximum Wind
40 km/h
Humidity
68%
Precipitation
89 mm
UV Index
6
Visibility
10 km
Rain Chance
77%
Snow Chance
0%
Sun & Moon
Sunrise
06:14 AM
Sunset
07:01 PM
Moonrise
05:14 AM
Moonset
06:37 PM
Moon Phase
New Moon
Moon Illumination
0%
Air Quality
PM2.5
2.9
μg/m³
PM10
3.1
μg/m³
NO₂
2.9
μg/m³
O₃
85.8
μg/m³
SO₂
0.6
μg/m³
CO
139.8
μg/m³
Sunny
Friday, September 11, 2026
High
18°C
Low
13°C
Rain Chance
6%
Hourly Forecast
18°C
17°C
16°C
16°C
16°C
15°C
15°C
14°C
13°C
14°C
15°C
17°C
18°C
18°C
17°C
17°C
17°C
16°C
17°C
17°C
17°C
16°C
16°C
16°C
Day Statistics
Maximum Wind
22 km/h
Humidity
61%
Precipitation
0 mm
UV Index
6
Visibility
10 km
Rain Chance
6%
Snow Chance
0%
Sun & Moon
Sunrise
06:16 AM
Sunset
06:59 PM
Moonrise
06:34 AM
Moonset
06:59 PM
Moon Phase
New Moon
Moon Illumination
0%
Air Quality
PM2.5
2.2
μg/m³
PM10
2.2
μg/m³
NO₂
3.1
μg/m³
O₃
64.7
μg/m³
SO₂
0.5
μg/m³
CO
162.3
μg/m³
Sunny
Saturday, September 12, 2026
High
18°C
Low
13°C
Rain Chance
4%
Hourly Forecast
15°C
14°C
14°C
14°C
14°C
14°C
14°C
13°C
15°C
16°C
18°C
18°C
18°C
18°C
18°C
18°C
18°C
18°C
18°C
17°C
17°C
17°C
17°C
18°C
Day Statistics
Maximum Wind
22 km/h
Humidity
63%
Precipitation
0 mm
UV Index
6
Visibility
10 km
Rain Chance
4%
Snow Chance
0%
Sun & Moon
Sunrise
06:17 AM
Sunset
06:57 PM
Moonrise
07:53 AM
Moonset
07:21 PM
Moon Phase
New Moon
Moon Illumination
3%
Air Quality
PM2.5
5.9
μg/m³
PM10
6.6
μg/m³
NO₂
5.4
μg/m³
O₃
68
μg/m³
SO₂
0.8
μg/m³
CO
162.8
μg/m³
Sunny
Sunday, September 13, 2026
High
21°C
Low
15°C
Rain Chance
12%
Hourly Forecast
18°C
17°C
16°C
16°C
15°C
15°C
15°C
15°C
16°C
17°C
18°C
18°C
19°C
19°C
20°C
21°C
21°C
20°C
19°C
19°C
19°C
17°C
17°C
19°C
Day Statistics
Maximum Wind
26 km/h
Humidity
78%
Precipitation
0 mm
UV Index
2
Visibility
9 km
Rain Chance
12%
Snow Chance
0%
Sun & Moon
Sunrise
06:18 AM
Sunset
06:55 PM
Moonrise
09:10 AM
Moonset
07:45 PM
Moon Phase
Waxing Crescent
Moon Illumination
8%
Air Quality
PM2.5
6.3
μg/m³
PM10
8
μg/m³
NO₂
5
μg/m³
O₃
74.2
μg/m³
SO₂
0.7
μg/m³
CO
160
μg/m³
Overcast
Monday, September 14, 2026
High
23°C
Low
16°C
Rain Chance
81%
Hourly Forecast
17°C
17°C
19°C
17°C
17°C
19°C
16°C
17°C
19°C
18°C
19°C
23°C
20°C
20°C
22°C
21°C
21°C
20°C
20°C
20°C
20°C
20°C
19°C
19°C
Day Statistics
Maximum Wind
18 km/h
Humidity
85%
Precipitation
5 mm
UV Index
6
Visibility
10 km
Rain Chance
81%
Snow Chance
0%
Sun & Moon
Sunrise
06:19 AM
Sunset
06:53 PM
Moonrise
10:27 AM
Moonset
08:12 PM
Moon Phase
Waxing Crescent
Moon Illumination
14%
Air Quality
PM2.5
3.2
μg/m³
PM10
3.3
μg/m³
NO₂
4
μg/m³
O₃
62.4
μg/m³
SO₂
0.8
μg/m³
CO
219.1
μg/m³
Fog
Tuesday, September 15, 2026
High
21°C
Low
17°C
Rain Chance
88%
Hourly Forecast
18°C
18°C
18°C
18°C
17°C
17°C
17°C
17°C
18°C
18°C
19°C
19°C
19°C
20°C
20°C
20°C
20°C
20°C
20°C
21°C
21°C
21°C
21°C
21°C
Day Statistics
Maximum Wind
28 km/h
Humidity
95%
Precipitation
5 mm
UV Index
6
Visibility
7 km
Rain Chance
88%
Snow Chance
0%
Sun & Moon
Sunrise
06:20 AM
Sunset
06:51 PM
Moonrise
11:41 AM
Moonset
08:44 PM
Moon Phase
Waxing Crescent
Moon Illumination
23%
Overcast
Wednesday, September 16, 2026
High
26°C
Low
17°C
Rain Chance
18%
Hourly Forecast
21°C
21°C
21°C
21°C
21°C
20°C
21°C
21°C
21°C
23°C
24°C
25°C
25°C
26°C
26°C
25°C
23°C
22°C
21°C
21°C
20°C
19°C
18°C
17°C
Day Statistics
Maximum Wind
23 km/h
Humidity
80%
Precipitation
0 mm
UV Index
7
Visibility
10 km
Rain Chance
18%
Snow Chance
0%
Sun & Moon
Sunrise
06:21 AM
Sunset
06:50 PM
Moonrise
12:52 PM
Moonset
09:22 PM
Moon Phase
First Quarter
Moon Illumination
32%
Solar Radiation Data
Shortwave Radiation
300.06
Diffuse Radiation
121.76
DNI
0
GTI
0
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