10 day forecast
Monthly forecast
Weather map
City or area
Find
Sign up
Log in
Go to comparison
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
1 September
+24
+17
1 September, sun
+24
+17
Feels like
+25
758 mmHg
63%
4.1
m/s
N
1 September, Sunday. day, 24°; night, 17°; partly cloudy
2
+24
+18
2 September, mon
+24
+18
Feels like
+24
758 mmHg
55%
4.5
m/s
N
2 September, Monday. day, 24°; night, 18°; clear
3
+24
+18
3 September, tue
+24
+18
Feels like
+24
758 mmHg
58%
4
m/s
NW
3 September, Tuesday. day, 24°; night, 18°; clear
4
+24
+17
4 September, wed
+24
+17
Feels like
+23
758 mmHg
61%
4.8
m/s
NW
4 September, Wednesday. day, 24°; night, 17°; partly cloudy
5
+24
+18
5 September, thu
+24
+18
Feels like
+24
758 mmHg
60%
4.3
m/s
SW
5 September, Thursday. day, 24°; night, 18°; clear
6
September
+35
+19
6 September, fri
+35
+19
Feels like
+29
753 mmHg
50%
2.3
m/s
SW
Climate normal
+24
+18
6 September, Friday. day, 35°; night, 19°; partly cloudy
7
+31
+18
7 September, sat
+31
+18
Feels like
+28
751 mmHg
63%
2.1
m/s
SW
Climate normal
+25
+19
7 September, Saturday. day, 31°; night, 18°; partly cloudy
8
+29
+14
8 September, sun
+29
+14
Feels like
+26
752 mmHg
65%
2.3
m/s
S
Climate normal
+25
+17
8 September, Sunday. day, 29°; night, 14°; mostly clear
9
+28
+14
9 September, mon
+28
+14
Feels like
+22
753 mmHg
59%
3.4
m/s
N
Climate normal
+26
+18
9 September, Monday. day, 28°; night, 14°; overcast
10
+25
+14
10 September, tue
+25
+14
Feels like
+21
753 mmHg
58%
2.5
m/s
NW
Climate normal
+29
+19
10 September, Tuesday. day, 25°; night, 14°; overcast
11
+19
+12
11 September, wed
+19
+12
Feels like
+15
752 mmHg
67%
3.3
m/s
SW
Climate normal
+26
+17
11 September, Wednesday. day, 19°; night, 12°; light rain
12
+23
+13
12 September, thu
+23
+13
Feels like
+18
754 mmHg
66%
3
m/s
SW
Climate normal
+24
+16
12 September, Thursday. day, 23°; night, 13°; overcast
13
+24
+13
13 September, fri
+24
+13
Feels like
+19
754 mmHg
63%
2.7
m/s
NW
Climate normal
+24
+18
13 September, Friday. day, 24°; night, 13°; partly cloudy
14
+24
+12
14 September, sat
+24
+12
Feels like
+18
754 mmHg
57%
2.8
m/s
W
Climate normal
+24
+18
14 September, Saturday. day, 24°; night, 12°; partly cloudy
15
+23
+12
15 September, sun
+23
+12
Feels like
+18
755 mmHg
62%
2.4
m/s
NW
Climate normal
+23
+17
15 September, Sunday. day, 23°; night, 12°; light rain
16
+23
+13
16 September, mon
+23
+13
Feels like
+18
753 mmHg
65%
2.8
m/s
W
Climate normal
+21
+17
16 September, Monday. day, 23°; night, 13°; partly cloudy
17
+24
+13
17 September, tue
+24
+13
Feels like
+19
754 mmHg
61%
3.1
m/s
SW
Climate normal
+22
+17
17 September, Tuesday. day, 24°; night, 13°; partly cloudy
18
+25
+4
18 September, wed
+25
+4
Feels like
+19
754 mmHg
63%
3.2
m/s
W
Climate normal
+22
+16
18 September, Wednesday. day, 25°; night, 4°; partly cloudy
19
+18
+10
19 September, thu
+18
+10
Feels like
+12
719 mmHg
65%
4
m/s
NW
Climate normal
+21
+17
19 September, Thursday. day, 18°; night, 10°; mostly clear
20
+15
+7
20 September, fri
+15
+7
Feels like
+10
719 mmHg
74%
2.4
m/s
NW
Climate normal
+21
+15
20 September, Friday. day, 15°; night, 7°; partly cloudy
21
+23
+10
21 September, sat
+23
+10
Feels like
+14
717 mmHg
52%
3.3
m/s
E
Climate normal
+21
+16
21 September, Saturday. day, 23°; night, 10°; clear
22
+26
+7
22 September, sun
+26
+7
Feels like
+16
718 mmHg
53%
3.5
m/s
NW
Climate normal
+20
+15
22 September, Sunday. day, 26°; night, 7°; clear
23
+25
+9
23 September, mon
+25
+9
Feels like
+17
720 mmHg
48%
3.4
m/s
NW
Climate normal
+20
+16
23 September, Monday. day, 25°; night, 9°; clear
24
+25
+9
24 September, tue
+25
+9
Feels like
+17
718 mmHg
52%
4.6
m/s
N
Climate normal
+20
+16
24 September, Tuesday. day, 25°; night, 9°; clear
25
+22
+9
25 September, wed
+22
+9
Feels like
+14
715 mmHg
58%
4.3
m/s
NW
Climate normal
+21
+15
25 September, Wednesday. day, 22°; night, 9°; clear
26
+18
+3
26 September, thu
+18
+3
Feels like
+9
719 mmHg
69%
4.5
m/s
W
Climate normal
+23
+16
26 September, Thursday. day, 18°; night, 3°; clear
27
+18
+5
27 September, fri
+18
+5
Feels like
+9
720 mmHg
59%
3.8
m/s
NW
Climate normal
+23
+16
27 September, Friday. day, 18°; night, 5°; clear
28
+22
+9
28 September, sat
+22
+9
Feels like
+13
719 mmHg
55%
2.6
m/s
NE
Climate normal
+21
+15
28 September, Saturday. day, 22°; night, 9°; mostly clear
29
+26
+11
29 September, sun
+26
+11
Feels like
+16
715 mmHg
51%
3.2
m/s
SW
Climate normal
+20
+15
29 September, Sunday. day, 26°; night, 11°; clear
30
+21
+11
30 September, mon
+21
+11
Feels like
+14
715 mmHg
58%
3.5
m/s
S
Climate normal
+19
+14
30 September, Monday. day, 21°; night, 11°; partly cloudy
1 October
+21
+12
1 October, tue
+21
+12
Feels like
+15
715 mmHg
70%
3
m/s
SW
Climate normal
+18
+14
1 October, Tuesday. day, 21°; night, 12°; mostly clear
2
+17
+13
2 October, wed
+17
+13
Feels like
+12
715 mmHg
73%
4.7
m/s
S
Climate normal
+18
+13
2 October, Wednesday. day, 17°; night, 13°; rain
3
+13
+8
3 October, thu
+13
+8
Feels like
+5
714 mmHg
96%
8.2
m/s
SW
Climate normal
+19
+14
3 October, Thursday. day, 13°; night, 8°; rain
4
+11
+10
4 October, fri
+11
+10
Feels like
+7
717 mmHg
91%
3.8
m/s
S
Climate normal
+20
+15
4 October, Friday. day, 11°; night, 10°; light rain
5
+11
+5
5 October, sat
+11
+5
Feels like
+4
717 mmHg
91%
6.6
m/s
SW
Climate normal
+20
+15
5 October, Saturday. day, 11°; night, 5°; rain
Average for 30 days
12
sunny days
6
days with precipitation
12
cloudy days
12 sunny days; 6 days with precipitation; 12 cloudy days;
64
%
air humidity
3.5
m/s
Wind
NW
10
mm of precipitation
(2% of annual average)
air humidity 64%; 10 millimeters of precipitation (2% of annual average); Wind north-westerly 3.5 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
SW
SW
S
N
NW
SW
SW
NW
W
NW
W
SW
W
NW
NW
E
NW
NW
N
NW
W
NW
NE
SW
S
SW
S
SW
S
SW
6
Average data for 10 years
7
8
9
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
Daytime temperature
Night-time temperature
