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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
+18
+15
15 September, sun
+18
+15
Feels like
+16
759 mmHg
73%
6
m/s
W
+17
15 September, Sunday. day, 18°; night, 15°; partly cloudy
16
+17
+14
16 September, mon
+17
+14
Feels like
+15
761 mmHg
73%
5.4
m/s
W
+17
16 September, Monday. day, 17°; night, 14°; rain
17
+17
+14
17 September, tue
+17
+14
Feels like
+16
760 mmHg
74%
5
m/s
SW
+17
17 September, Tuesday. day, 17°; night, 14°; clear
18
+17
+14
18 September, wed
+17
+14
Feels like
+14
760 mmHg
73%
6.5
m/s
SW
+17
18 September, Wednesday. day, 17°; night, 14°; partly cloudy
19
+18
+15
19 September, thu
+18
+15
Feels like
+15
760 mmHg
73%
7
m/s
W
+17
19 September, Thursday. day, 18°; night, 15°; clear
20
+18
+14
20 September, fri
+18
+14
Feels like
+15
760 mmHg
74%
5.9
m/s
SE
+17
20 September, Friday. day, 18°; night, 14°; clear
21
September
+16
+14
21 September, sat
+16
+14
Feels like
+13
762 mmHg
83%
4
m/s
NE
+18
Climate normal
+19
+15
21 September, Saturday. day, 16°; night, 14°; rain
22
+17
+10
22 September, sun
+17
+10
Feels like
+12
763 mmHg
72%
4.8
m/s
E
+18
Climate normal
+18
+15
22 September, Sunday. day, 17°; night, 10°; overcast
23
+17
+10
23 September, mon
+17
+10
Feels like
+13
764 mmHg
77%
4.2
m/s
E
+18
Climate normal
+18
+16
23 September, Monday. day, 17°; night, 10°; light rain
24
+17
+12
24 September, tue
+17
+12
Feels like
+12
765 mmHg
71%
4.6
m/s
E
+18
Climate normal
+17
+15
24 September, Tuesday. day, 17°; night, 12°; partly cloudy
25
+16
+14
25 September, wed
+16
+14
Feels like
+12
765 mmHg
82%
4.7
m/s
E
+17
Climate normal
+17
+13
25 September, Wednesday. day, 16°; night, 14°; rain
26
+16
+14
26 September, thu
+16
+14
Feels like
+12
761 mmHg
87%
5.3
m/s
E
+17
Climate normal
+18
+14
26 September, Thursday. day, 16°; night, 14°; heavy rain
27
+18
+14
27 September, fri
+18
+14
Feels like
+14
759 mmHg
79%
5.2
m/s
NE
+17
Climate normal
+19
+16
27 September, Friday. day, 18°; night, 14°; rain
28
+19
+15
28 September, sat
+19
+15
Feels like
+15
760 mmHg
74%
4.6
m/s
NE
+18
Climate normal
+16
+15
28 September, Saturday. day, 19°; night, 15°; rain
29
+18
+14
29 September, sun
+18
+14
Feels like
+14
760 mmHg
83%
6.4
m/s
NE
+18
Climate normal
+16
+14
29 September, Sunday. day, 18°; night, 14°; rain
30
+21
+13
30 September, mon
+21
+13
Feels like
+16
759 mmHg
72%
6
m/s
NW
+17
Climate normal
+15
+13
30 September, Monday. day, 21°; night, 13°; partly cloudy
1 October
+19
+13
1 October, tue
+19
+13
Feels like
+11
759 mmHg
74%
7.3
m/s
N
Climate normal
+15
+12
1 October, Tuesday. day, 19°; night, 13°; rain
2
+24
+14
2 October, wed
+24
+14
Feels like
+17
759 mmHg
66%
5.4
m/s
NW
Climate normal
+15
+12
2 October, Wednesday. day, 24°; night, 14°; partly cloudy
3
+18
+13
3 October, thu
+18
+13
Feels like
+12
762 mmHg
87%
6.8
m/s
SW
Climate normal
+15
+13
3 October, Thursday. day, 18°; night, 13°; light rain
4
+16
+12
4 October, fri
+16
+12
Feels like
+10
767 mmHg
61%
4.1
m/s
SW
Climate normal
+15
+13
4 October, Friday. day, 16°; night, 12°; clear
5
+18
+13
5 October, sat
+18
+13
Feels like
+13
770 mmHg
69%
3
m/s
SW
Climate normal
+14
+12
5 October, Saturday. day, 18°; night, 13°; clear
6
+15
+14
6 October, sun
+15
+14
Feels like
+10
767 mmHg
85%
6
m/s
E
Climate normal
+16
+12
6 October, Sunday. day, 15°; night, 14°; partly cloudy
7
+21
+20
7 October, mon
+21
+20
Feels like
+13
761 mmHg
71%
9.8
m/s
SW
Climate normal
+17
+13
7 October, Monday. day, 21°; night, 20°; partly cloudy
8
+19
+13
8 October, tue
+19
+13
Feels like
+12
755 mmHg
62%
6.6
m/s
NE
Climate normal
+15
+12
8 October, Tuesday. day, 19°; night, 13°; clear
9
+15
+14
9 October, wed
+15
+14
Feels like
+10
759 mmHg
69%
4.6
m/s
SE
Climate normal
+15
+13
9 October, Wednesday. day, 15°; night, 14°; partly cloudy
10
+17
+17
10 October, thu
+17
+17
Feels like
+15
768 mmHg
94%
3.4
m/s
E
Climate normal
+15
+12
10 October, Thursday. day, 17°; night, 17°; clear
11
+21
+19
11 October, fri
+21
+19
Feels like
+16
768 mmHg
89%
7.6
m/s
S
Climate normal
+13
+11
11 October, Friday. day, 21°; night, 19°; clear
12
+20
+16
12 October, sat
+20
+16
Feels like
+13
761 mmHg
91%
12.5
m/s
S
Climate normal
+13
+11
12 October, Saturday. day, 20°; night, 16°; rain
13
+14
+10
13 October, sun
+14
+10
Feels like
+8
757 mmHg
78%
6.5
m/s
NW
Climate normal
+14
+11
13 October, Sunday. day, 14°; night, 10°; rain
14
+13
+9
14 October, mon
+13
+9
Feels like
+8
762 mmHg
61%
4.7
m/s
NW
Climate normal
+13
+11
14 October, Monday. day, 13°; night, 9°; clear
15
+11
+7
15 October, tue
+11
+7
Feels like
+3
764 mmHg
62%
6.1
m/s
NW
Climate normal
+13
+12
15 October, Tuesday. day, 11°; night, 7°; clear
16
+14
+9
16 October, wed
+14
+9
Feels like
+7
759 mmHg
70%
4.4
m/s
W
Climate normal
+14
+11
16 October, Wednesday. day, 14°; night, 9°; mostly clear
17
+15
+12
17 October, thu
+15
+12
Feels like
+8
754 mmHg
70%
6.9
m/s
S
Climate normal
+13
+10
17 October, Thursday. day, 15°; night, 12°; mostly clear
18
+13
+10
18 October, fri
+13
+10
Feels like
+7
755 mmHg
74%
6.3
m/s
NW
Climate normal
+12
+9
18 October, Friday. day, 13°; night, 10°; partly cloudy
19
+12
+11
19 October, sat
+12
+11
Feels like
+6
755 mmHg
74%
6
m/s
S
Climate normal
+14
+10
19 October, Saturday. day, 12°; night, 11°; clear
Average for 30 days
14
sunny days
8
days with precipitation
8
cloudy days
14 sunny days; 8 days with precipitation; 8 cloudy days;
76
%
air humidity
5.8
m/s
Wind
E
59
mm of precipitation
(7% of annual average)
+18
°C
Water temperature
air humidity 76%; 59 millimeters of precipitation (7% of annual average); Wind easterly 5.8 Meters per second; Water temperature +18°
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
NE
E
E
E
E
E
NE
NE
NE
NW
N
NW
SW
SW
SW
E
SW
NE
SE
E
S
S
NW
NW
NW
W
S
NW
S
SW
21
Average data for 10 years
22
23
24
25
26
27
28
29
30
1
October
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Daytime temperature
Night-time temperature
