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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
+26
+18
9 September, mon
+26
+18
Feels like
+27
759 mmHg
58%
3.9
m/s
NW
9 September, Monday. day, 26°; night, 18°; clear
10
+29
+19
10 September, tue
+29
+19
Feels like
+28
758 mmHg
43%
5.1
m/s
N
10 September, Tuesday. day, 29°; night, 19°; clear
11
+26
+17
11 September, wed
+26
+17
Feels like
+26
757 mmHg
50%
4.3
m/s
N
11 September, Wednesday. day, 26°; night, 17°; rain
12
+24
+16
12 September, thu
+24
+16
Feels like
+23
757 mmHg
52%
4.5
m/s
N
12 September, Thursday. day, 24°; night, 16°; clear
13
+24
+18
13 September, fri
+24
+18
Feels like
+24
756 mmHg
50%
3.4
m/s
N
13 September, Friday. day, 24°; night, 18°; clear
14
September
+22
+10
14 September, sat
+22
+10
Feels like
+17
752 mmHg
70%
3.2
m/s
S
Climate normal
+24
+18
14 September, Saturday. day, 22°; night, 10°; light rain
15
+20
+9
15 September, sun
+20
+9
Feels like
+14
753 mmHg
64%
3.5
m/s
N
Climate normal
+23
+17
15 September, Sunday. day, 20°; night, 9°; light rain
16
+24
+11
16 September, mon
+24
+11
Feels like
+17
752 mmHg
61%
3.4
m/s
N
Climate normal
+21
+17
16 September, Monday. day, 24°; night, 11°; partly cloudy
17
+16
+14
17 September, tue
+16
+14
Feels like
+12
752 mmHg
90%
3.9
m/s
SW
Climate normal
+22
+17
17 September, Tuesday. day, 16°; night, 14°; rain
18
+20
+12
18 September, wed
+20
+12
Feels like
+17
753 mmHg
70%
2.6
m/s
SW
Climate normal
+22
+16
18 September, Wednesday. day, 20°; night, 12°; rain
19
+21
+11
19 September, thu
+21
+11
Feels like
+17
755 mmHg
67%
2.3
m/s
N
Climate normal
+21
+17
19 September, Thursday. day, 21°; night, 11°; light rain
20
+21
+10
20 September, fri
+21
+10
Feels like
+15
757 mmHg
65%
2.4
m/s
N
Climate normal
+21
+15
20 September, Friday. day, 21°; night, 10°; light rain
21
+23
+11
21 September, sat
+23
+11
Feels like
+16
758 mmHg
63%
2.6
m/s
N
Climate normal
+21
+16
21 September, Saturday. day, 23°; night, 11°; partly cloudy
22
+25
+13
22 September, sun
+25
+13
Feels like
+19
756 mmHg
65%
3.1
m/s
N
Climate normal
+20
+15
22 September, Sunday. day, 25°; night, 13°; mostly clear
23
+26
+15
23 September, mon
+26
+15
Feels like
+20
756 mmHg
65%
3.4
m/s
NE
Climate normal
+20
+16
23 September, Monday. day, 26°; night, 15°; clear
24
+24
+13
24 September, tue
+24
+13
Feels like
+19
755 mmHg
66%
3
m/s
NW
Climate normal
+20
+16
24 September, Tuesday. day, 24°; night, 13°; partly cloudy
25
+24
+13
25 September, wed
+24
+13
Feels like
+18
755 mmHg
66%
3.2
m/s
NE
Climate normal
+21
+15
25 September, Wednesday. day, 24°; night, 13°; partly cloudy
26
+16
+4
26 September, thu
+16
+4
Feels like
+10
731 mmHg
76%
2.3
m/s
NW
Climate normal
+23
+16
26 September, Thursday. day, 16°; night, 4°; partly cloudy
27
+18
+5
27 September, fri
+18
+5
Feels like
+12
721 mmHg
69%
2.5
m/s
NW
Climate normal
+23
+16
27 September, Friday. day, 18°; night, 5°; partly cloudy
28
+19
+8
28 September, sat
+19
+8
Feels like
+13
722 mmHg
65%
3
m/s
NW
Climate normal
+21
+15
28 September, Saturday. day, 19°; night, 8°; clear
29
+21
+9
29 September, sun
+21
+9
Feels like
+13
723 mmHg
57%
3.6
m/s
NW
Climate normal
+20
+15
29 September, Sunday. day, 21°; night, 9°; clear
30
+23
+11
30 September, mon
+23
+11
Feels like
+15
723 mmHg
52%
3.4
m/s
E
Climate normal
+19
+14
30 September, Monday. day, 23°; night, 11°; mostly clear
1 October
+25
+13
1 October, tue
+25
+13
Feels like
+17
720 mmHg
48%
3.5
m/s
E
Climate normal
+18
+14
1 October, Tuesday. day, 25°; night, 13°; mostly clear
2
+27
+14
2 October, wed
+27
+14
Feels like
+18
718 mmHg
47%
2.6
m/s
NW
Climate normal
+18
+13
2 October, Wednesday. day, 27°; night, 14°; clear
3
+23
+12
3 October, thu
+23
+12
Feels like
+16
716 mmHg
51%
3.7
m/s
S
Climate normal
+19
+14
3 October, Thursday. day, 23°; night, 12°; clear
4
+11
+6
4 October, fri
+11
+6
Feels like
+5
716 mmHg
87%
5.1
m/s
W
Climate normal
+20
+15
4 October, Friday. day, 11°; night, 6°; rain
5
+12
+4
5 October, sat
+12
+4
Feels like
+5
718 mmHg
79%
2.5
m/s
NW
Climate normal
+20
+15
5 October, Saturday. day, 12°; night, 4°; mostly clear
6
+15
+4
6 October, sun
+15
+4
Feels like
+9
720 mmHg
76%
2.3
m/s
NW
Climate normal
+18
+14
6 October, Sunday. day, 15°; night, 4°; mostly clear
7
+19
+8
7 October, mon
+19
+8
Feels like
+12
722 mmHg
63%
3
m/s
E
Climate normal
+19
+14
7 October, Monday. day, 19°; night, 8°; clear
8
+20
+9
8 October, tue
+20
+9
Feels like
+14
720 mmHg
94%
3.6
m/s
E
Climate normal
+18
+14
8 October, Tuesday. day, 20°; night, 9°; clear
9
+21
+6
9 October, wed
+21
+6
Feels like
+14
720 mmHg
85%
2.6
m/s
W
Climate normal
+16
+12
9 October, Wednesday. day, 21°; night, 6°; clear
10
+19
+4
10 October, thu
+19
+4
Feels like
+11
719 mmHg
59%
3
m/s
NW
Climate normal
+15
+11
10 October, Thursday. day, 19°; night, 4°; clear
11
+15
+8
11 October, fri
+15
+8
Feels like
+8
717 mmHg
63%
3.9
m/s
W
Climate normal
+16
+12
11 October, Friday. day, 15°; night, 8°; mostly clear
12
+13
+1
12 October, sat
+13
+1
Feels like
+5
720 mmHg
61%
3.2
m/s
N
Climate normal
+16
+12
12 October, Saturday. day, 13°; night, 1°; mostly clear
Average for 30 days
16
sunny days
7
days with precipitation
7
cloudy days
16 sunny days; 7 days with precipitation; 7 cloudy days;
68
%
air humidity
3.1
m/s
Wind
NW
15
mm of precipitation
(2% of annual average)
air humidity 68%; 15 millimeters of precipitation (2% of annual average); Wind north-westerly 3.1 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
S
N
N
SW
SW
N
N
N
N
NE
NW
NE
NW
NW
NW
NW
E
E
NW
S
W
NW
NW
E
E
W
NW
W
N
W
14
Average data for 10 years
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
9
10
11
12
13
Daytime temperature
Night-time temperature
