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Monthly weather forecast in Portland
30 days
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
30 days
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun
Sunday
Mon
Monday
Tue
Tuesday
Wed
Wednesday
Thu
Thursday
Fri
Friday
Sat
Saturday
15
September
+23
+12
15 September, sun
+23
+12
Feels like
+18
769 mmHg
71%
4.8
m/s
S
+17
Climate normal
+18
+15
15 September, Sunday. day, 23°; night, 12°; clear
16
+25
+14
16 September, mon
+25
+14
Feels like
+18
768 mmHg
63%
5.1
m/s
S
+18
Climate normal
+17
+14
16 September, Monday. day, 25°; night, 14°; clear
17
+25
+14
17 September, tue
+25
+14
Feels like
+20
765 mmHg
64%
4.1
m/s
S
+18
Climate normal
+17
+14
17 September, Tuesday. day, 25°; night, 14°; overcast
18
+24
+16
18 September, wed
+24
+16
Feels like
+20
763 mmHg
76%
4
m/s
SE
+18
Climate normal
+17
+14
18 September, Wednesday. day, 24°; night, 16°; overcast
19
+20
+15
19 September, thu
+20
+15
Feels like
+18
760 mmHg
85%
3.2
m/s
E
+17
Climate normal
+18
+15
19 September, Thursday. day, 20°; night, 15°; overcast
20
+19
+14
20 September, fri
+19
+14
Feels like
+17
762 mmHg
80%
3.8
m/s
NE
+18
Climate normal
+18
+14
20 September, Friday. day, 19°; night, 14°; light rain
21
+18
+12
21 September, sat
+18
+12
Feels like
+13
764 mmHg
71%
4.8
m/s
E
+17
Climate normal
+19
+15
21 September, Saturday. day, 18°; night, 12°; overcast
22
+18
+11
22 September, sun
+18
+11
Feels like
+13
765 mmHg
69%
4.7
m/s
NE
+17
Climate normal
+18
+15
22 September, Sunday. day, 18°; night, 11°; partly cloudy
23
+22
+12
23 September, mon
+22
+12
Feels like
+16
764 mmHg
68%
4.3
m/s
SE
+18
Climate normal
+18
+16
23 September, Monday. day, 22°; night, 12°; light rain
24
+19
+14
24 September, tue
+19
+14
Feels like
+14
762 mmHg
73%
5
m/s
S
+18
Climate normal
+17
+15
24 September, Tuesday. day, 19°; night, 14°; partly cloudy
25
+20
+15
25 September, wed
+20
+15
Feels like
+16
757 mmHg
79%
5.4
m/s
SW
Climate normal
+17
+13
25 September, Wednesday. day, 20°; night, 15°; partly cloudy
26
+23
+14
26 September, thu
+23
+14
Feels like
+16
760 mmHg
73%
5.5
m/s
SW
Climate normal
+18
+14
26 September, Thursday. day, 23°; night, 14°; partly cloudy
27
+23
+14
27 September, fri
+23
+14
Feels like
+16
761 mmHg
72%
6
m/s
SW
Climate normal
+19
+16
27 September, Friday. day, 23°; night, 14°; partly cloudy
28
+14
+12
28 September, sat
+14
+12
Feels like
+10
760 mmHg
92%
7.3
m/s
NE
Climate normal
+16
+15
28 September, Saturday. day, 14°; night, 12°; light rain
29
+15
+12
29 September, sun
+15
+12
Feels like
+9
760 mmHg
82%
5.6
m/s
NE
Climate normal
+16
+14
29 September, Sunday. day, 15°; night, 12°; clear
30
+14
+15
30 September, mon
+14
+15
Feels like
+7
758 mmHg
78%
5.9
m/s
SE
Climate normal
+15
+13
30 September, Monday. day, 14°; night, 15°; partly cloudy
1 October
+18
+19
1 October, tue
+18
+19
Feels like
+14
755 mmHg
84%
6.2
m/s
S
Climate normal
+15
+12
1 October, Tuesday. day, 18°; night, 19°; partly cloudy
2
+19
+19
2 October, wed
+19
+19
Feels like
+14
751 mmHg
95%
9
m/s
S
Climate normal
+15
+12
2 October, Wednesday. day, 19°; night, 19°; rain
3
+18
+16
3 October, thu
+18
+16
Feels like
+13
739 mmHg
90%
8.3
m/s
SW
Climate normal
+15
+13
3 October, Thursday. day, 18°; night, 16°; light rain
4
+17
+14
4 October, fri
+17
+14
Feels like
+11
747 mmHg
94%
9.2
m/s
NW
Climate normal
+15
+13
4 October, Friday. day, 17°; night, 14°; heavy rain
5
+16
+11
5 October, sat
+16
+11
Feels like
+9
757 mmHg
87%
7.5
m/s
N
Climate normal
+14
+12
5 October, Saturday. day, 16°; night, 11°; rain
6
+14
+12
6 October, sun
+14
+12
Feels like
+9
762 mmHg
76%
3.6
m/s
E
Climate normal
+16
+12
6 October, Sunday. day, 14°; night, 12°; clear
7
+16
+16
7 October, mon
+16
+16
Feels like
+8
759 mmHg
64%
7.6
m/s
SW
Climate normal
+17
+13
7 October, Monday. day, 16°; night, 16°; partly cloudy
8
+18
+13
8 October, tue
+18
+13
Feels like
+11
757 mmHg
66%
7.1
m/s
NW
Climate normal
+15
+12
8 October, Tuesday. day, 18°; night, 13°; clear
9
+17
+13
9 October, wed
+17
+13
Feels like
+14
760 mmHg
87%
3
m/s
NW
Climate normal
+15
+13
9 October, Wednesday. day, 17°; night, 13°; mostly clear
10
+15
+14
10 October, thu
+15
+14
Feels like
+12
760 mmHg
83%
3.3
m/s
SE
Climate normal
+15
+12
10 October, Thursday. day, 15°; night, 14°; partly cloudy
11
+16
+16
11 October, fri
+16
+16
Feels like
+12
761 mmHg
74%
4.3
m/s
S
Climate normal
+13
+11
11 October, Friday. day, 16°; night, 16°; partly cloudy
12
+19
+17
12 October, sat
+19
+17
Feels like
+16
761 mmHg
82%
4.9
m/s
S
Climate normal
+13
+11
12 October, Saturday. day, 19°; night, 17°; partly cloudy
13
+19
+17
13 October, sun
+19
+17
Feels like
+17
765 mmHg
74%
3.2
m/s
SE
Climate normal
+14
+11
13 October, Sunday. day, 19°; night, 17°; partly cloudy
14
+17
+15
14 October, mon
+17
+15
Feels like
+15
766 mmHg
70%
4.2
m/s
E
Climate normal
+13
+11
14 October, Monday. day, 17°; night, 15°; partly cloudy
Average data for 10 years
Next, the average data for 10 years
15
+13
+12
15 October, tue
+13
+12
Feels like
+8
755 mmHg
72%
7.4
m/s
W
+14
15 October, Tuesday. day, 13°; night, 12°; rain
16
+14
+11
16 October, wed
+14
+11
Feels like
+10
753 mmHg
70%
6.6
m/s
W
+14
16 October, Wednesday. day, 14°; night, 11°; partly cloudy
17
+13
+10
17 October, thu
+13
+10
Feels like
+9
755 mmHg
67%
6.5
m/s
W
+13
17 October, Thursday. day, 13°; night, 10°; partly cloudy
18
+12
+9
18 October, fri
+12
+9
Feels like
+8
757 mmHg
67%
7
m/s
NW
+13
18 October, Friday. day, 12°; night, 9°; partly cloudy
19
+14
+10
19 October, sat
+14
+10
Feels like
+10
756 mmHg
68%
7.1
m/s
SW
+13
19 October, Saturday. day, 14°; night, 10°; partly cloudy
Average for 30 days
9
sunny days
4
days with precipitation
17
cloudy days
9 sunny days; 4 days with precipitation; 17 cloudy days;
77
%
air humidity
5.4
m/s
Wind
S
11
mm of precipitation
(2% of annual average)
+18
°C
Water temperature
air humidity 77%; 11 millimeters of precipitation (2% of annual average); Wind southerly 5.4 Meters per second; Water temperature +18°
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
S
S
S
SE
E
NE
E
NE
SE
S
SW
SW
SW
NE
NE
SE
S
S
SW
NW
N
E
SW
NW
NW
SE
S
S
SE
E
15
Average data for 10 years
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1
October
2
3
4
5
6
7
8
9
10
11
12
13
14
Daytime temperature
Night-time temperature
