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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
8
+25
+17
8 September, sun
+25
+17
Feels like
+25
758 mmHg
58%
4.4
m/s
NW
8 September, Sunday. day, 25°; night, 17°; clear
9
September
+27
+13
9 September, mon
+27
+13
Feels like
+22
753 mmHg
62%
3.1
m/s
N
Climate normal
+26
+18
9 September, Monday. day, 27°; night, 13°; partly cloudy
10
+25
+13
10 September, tue
+25
+13
Feels like
+19
752 mmHg
49%
2.4
m/s
NW
Climate normal
+29
+19
10 September, Tuesday. day, 25°; night, 13°; partly cloudy
11
+19
+14
11 September, wed
+19
+14
Feels like
+15
749 mmHg
84%
3.2
m/s
SW
Climate normal
+26
+17
11 September, Wednesday. day, 19°; night, 14°; rain
12
+21
+12
12 September, thu
+21
+12
Feels like
+16
753 mmHg
79%
2.8
m/s
W
Climate normal
+24
+16
12 September, Thursday. day, 21°; night, 12°; light rain
13
+23
+13
13 September, fri
+23
+13
Feels like
+18
754 mmHg
67%
2.3
m/s
SE
Climate normal
+24
+18
13 September, Friday. day, 23°; night, 13°; light rain
14
+22
+14
14 September, sat
+22
+14
Feels like
+18
753 mmHg
70%
3
m/s
W
Climate normal
+24
+18
14 September, Saturday. day, 22°; night, 14°; overcast
15
+21
+12
15 September, sun
+21
+12
Feels like
+16
753 mmHg
65%
3.2
m/s
W
Climate normal
+23
+17
15 September, Sunday. day, 21°; night, 12°; overcast
16
+21
+12
16 September, mon
+21
+12
Feels like
+16
754 mmHg
65%
2.9
m/s
W
Climate normal
+21
+17
16 September, Monday. day, 21°; night, 12°; mostly clear
17
+18
+13
17 September, tue
+18
+13
Feels like
+14
753 mmHg
77%
3.8
m/s
SW
Climate normal
+22
+17
17 September, Tuesday. day, 18°; night, 13°; rain
18
+19
+12
18 September, wed
+19
+12
Feels like
+15
755 mmHg
76%
3.6
m/s
SW
Climate normal
+22
+16
18 September, Wednesday. day, 19°; night, 12°; rain
19
+21
+11
19 September, thu
+21
+11
Feels like
+16
755 mmHg
66%
3.1
m/s
SW
Climate normal
+21
+17
19 September, Thursday. day, 21°; night, 11°; partly cloudy
20
+22
+12
20 September, fri
+22
+12
Feels like
+16
755 mmHg
59%
3
m/s
W
Climate normal
+21
+15
20 September, Friday. day, 22°; night, 12°; partly cloudy
21
+23
+12
21 September, sat
+23
+12
Feels like
+13
738 mmHg
48%
5.6
m/s
NE
Climate normal
+21
+16
21 September, Saturday. day, 23°; night, 12°; mostly clear
22
+26
+12
22 September, sun
+26
+12
Feels like
+15
722 mmHg
37%
5.4
m/s
E
Climate normal
+20
+15
22 September, Sunday. day, 26°; night, 12°; clear
23
+28
+13
23 September, mon
+28
+13
Feels like
+19
720 mmHg
38%
3.8
m/s
E
Climate normal
+20
+16
23 September, Monday. day, 28°; night, 13°; clear
24
+29
+14
24 September, tue
+29
+14
Feels like
+19
717 mmHg
41%
3
m/s
E
Climate normal
+20
+16
24 September, Tuesday. day, 29°; night, 14°; clear
25
+29
+9
25 September, wed
+29
+9
Feels like
+20
715 mmHg
50%
3.3
m/s
NW
Climate normal
+21
+15
25 September, Wednesday. day, 29°; night, 9°; clear
26
+27
+9
26 September, thu
+27
+9
Feels like
+19
718 mmHg
51%
3.2
m/s
W
Climate normal
+23
+16
26 September, Thursday. day, 27°; night, 9°; clear
27
+28
+14
27 September, fri
+28
+14
Feels like
+21
720 mmHg
42%
2.9
m/s
NW
Climate normal
+23
+16
27 September, Friday. day, 28°; night, 14°; clear
28
+30
+15
28 September, sat
+30
+15
Feels like
+21
719 mmHg
35%
3.2
m/s
E
Climate normal
+21
+15
28 September, Saturday. day, 30°; night, 15°; clear
29
+30
+14
29 September, sun
+30
+14
Feels like
+20
719 mmHg
36%
3.9
m/s
E
Climate normal
+20
+15
29 September, Sunday. day, 30°; night, 14°; clear
30
+28
+11
30 September, mon
+28
+11
Feels like
+19
719 mmHg
40%
3.9
m/s
NE
Climate normal
+19
+14
30 September, Monday. day, 28°; night, 11°; clear
1 October
+28
+14
1 October, tue
+28
+14
Feels like
+20
719 mmHg
38%
3.7
m/s
NE
Climate normal
+18
+14
1 October, Tuesday. day, 28°; night, 14°; clear
2
+30
+16
2 October, wed
+30
+16
Feels like
+21
717 mmHg
33%
3.7
m/s
E
Climate normal
+18
+13
2 October, Wednesday. day, 30°; night, 16°; clear
3
+30
+15
3 October, thu
+30
+15
Feels like
+20
718 mmHg
42%
2.6
m/s
E
Climate normal
+19
+14
3 October, Thursday. day, 30°; night, 15°; mostly clear
4
+23
+9
4 October, fri
+23
+9
Feels like
+16
721 mmHg
64%
3.2
m/s
W
Climate normal
+20
+15
4 October, Friday. day, 23°; night, 9°; mostly clear
5
+25
+16
5 October, sat
+25
+16
Feels like
+19
720 mmHg
53%
3.3
m/s
NW
Climate normal
+20
+15
5 October, Saturday. day, 25°; night, 16°; partly cloudy
6
+27
+14
6 October, sun
+27
+14
Feels like
+19
717 mmHg
53%
3.2
m/s
NE
Climate normal
+18
+14
6 October, Sunday. day, 27°; night, 14°; partly cloudy
7
+24
+13
7 October, mon
+24
+13
Feels like
+19
716 mmHg
64%
2.9
m/s
SW
Climate normal
+19
+14
7 October, Monday. day, 24°; night, 13°; light rain
8
+17
+12
8 October, tue
+17
+12
Feels like
+13
716 mmHg
80%
3
m/s
SW
Climate normal
+18
+14
8 October, Tuesday. day, 17°; night, 12°; light rain
Average data for 10 years
Next, the average data for 10 years
9
+16
+12
9 October, wed
+16
+12
Feels like
+14
758 mmHg
72%
4.1
m/s
SW
9 October, Wednesday. day, 16°; night, 12°; clear
10
+15
+11
10 October, thu
+15
+11
Feels like
+13
760 mmHg
67%
4.1
m/s
W
10 October, Thursday. day, 15°; night, 11°; partly cloudy
11
+16
+12
11 October, fri
+16
+12
Feels like
+14
760 mmHg
61%
4.4
m/s
NE
11 October, Friday. day, 16°; night, 12°; clear
12
+16
+12
12 October, sat
+16
+12
Feels like
+14
758 mmHg
66%
5
m/s
E
12 October, Saturday. day, 16°; night, 12°; rain
Average for 30 days
15
sunny days
7
days with precipitation
8
cloudy days
15 sunny days; 7 days with precipitation; 8 cloudy days;
55
%
air humidity
3.3
m/s
Wind
E
25
mm of precipitation
(3% of annual average)
air humidity 55%; 25 millimeters of precipitation (3% of annual average); Wind easterly 3.3 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
N
NW
SW
W
SE
W
W
W
SW
SW
SW
W
NE
E
E
E
NW
W
NW
E
E
NE
NE
E
E
W
NW
NE
SW
SW
9
Average data for 10 years
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1
October
2
3
4
5
6
7
8
Daytime temperature
Night-time temperature
