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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
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
September
+37
+17
5 September, thu
+37
+17
Feels like
+31
755 mmHg
44%
3.1
m/s
N
Climate normal
+24
+18
5 September, Thursday. day, 37°; night, 17°; partly cloudy
6
+35
+19
6 September, fri
+35
+19
Feels like
+30
753 mmHg
51%
2.5
m/s
SW
Climate normal
+24
+18
6 September, Friday. day, 35°; night, 19°; partly cloudy
7
+30
+17
7 September, sat
+30
+17
Feels like
+27
751 mmHg
62%
2.1
m/s
SW
Climate normal
+25
+19
7 September, Saturday. day, 30°; night, 17°; overcast
8
+30
+15
8 September, sun
+30
+15
Feels like
+24
753 mmHg
70%
2.2
m/s
S
Climate normal
+25
+17
8 September, Sunday. day, 30°; night, 15°; mostly clear
9
+28
+16
9 September, mon
+28
+16
Feels like
+26
754 mmHg
64%
2.3
m/s
N
Climate normal
+26
+18
9 September, Monday. day, 28°; night, 16°; partly cloudy
10
+26
+14
10 September, tue
+26
+14
Feels like
+22
753 mmHg
69%
3.4
m/s
NW
Climate normal
+29
+19
10 September, Tuesday. day, 26°; night, 14°; partly cloudy
11
+22
+14
11 September, wed
+22
+14
Feels like
+17
754 mmHg
61%
3.2
m/s
NW
Climate normal
+26
+17
11 September, Wednesday. day, 22°; night, 14°; partly cloudy
12
+23
+13
12 September, thu
+23
+13
Feels like
+18
754 mmHg
70%
3.3
m/s
S
Climate normal
+24
+16
12 September, Thursday. day, 23°; night, 13°; light rain
13
+25
+14
13 September, fri
+25
+14
Feels like
+20
753 mmHg
67%
2.9
m/s
NW
Climate normal
+24
+18
13 September, Friday. day, 25°; night, 14°; partly cloudy
14
+25
+14
14 September, sat
+25
+14
Feels like
+20
754 mmHg
64%
2.5
m/s
SW
Climate normal
+24
+18
14 September, Saturday. day, 25°; night, 14°; mostly clear
15
+24
+13
15 September, sun
+24
+13
Feels like
+19
754 mmHg
64%
2.7
m/s
SW
Climate normal
+23
+17
15 September, Sunday. day, 24°; night, 13°; partly cloudy
16
+26
+14
16 September, mon
+26
+14
Feels like
+20
753 mmHg
64%
2.9
m/s
SW
Climate normal
+21
+17
16 September, Monday. day, 26°; night, 14°; partly cloudy
17
+29
+16
17 September, tue
+29
+16
Feels like
+19
736 mmHg
69%
2.8
m/s
SW
Climate normal
+22
+17
17 September, Tuesday. day, 29°; night, 16°; mostly clear
18
+22
+15
18 September, wed
+22
+15
Feels like
+19
718 mmHg
73%
1.9
m/s
SW
Climate normal
+22
+16
18 September, Wednesday. day, 22°; night, 15°; partly cloudy
19
+16
+6
19 September, thu
+16
+6
Feels like
+10
720 mmHg
95%
3.9
m/s
W
Climate normal
+21
+17
19 September, Thursday. day, 16°; night, 6°; rain
20
+15
+13
20 September, fri
+15
+13
Feels like
+8
721 mmHg
70%
6.1
m/s
S
Climate normal
+21
+15
20 September, Friday. day, 15°; night, 13°; light rain
21
+17
+9
21 September, sat
+17
+9
Feels like
+13
721 mmHg
91%
3.2
m/s
NW
Climate normal
+21
+16
21 September, Saturday. day, 17°; night, 9°; rain
22
+23
+13
22 September, sun
+23
+13
Feels like
+15
720 mmHg
58%
4.8
m/s
NE
Climate normal
+20
+15
22 September, Sunday. day, 23°; night, 13°; clear
23
+29
+15
23 September, mon
+29
+15
Feels like
+20
719 mmHg
53%
3.8
m/s
E
Climate normal
+20
+16
23 September, Monday. day, 29°; night, 15°; clear
24
+29
+16
24 September, tue
+29
+16
Feels like
+21
718 mmHg
49%
3.5
m/s
E
Climate normal
+20
+16
24 September, Tuesday. day, 29°; night, 16°; clear
25
+29
+16
25 September, wed
+29
+16
Feels like
+22
720 mmHg
51%
3
m/s
E
Climate normal
+21
+15
25 September, Wednesday. day, 29°; night, 16°; mostly clear
26
+30
+13
26 September, thu
+30
+13
Feels like
+21
719 mmHg
57%
2.4
m/s
E
Climate normal
+23
+16
26 September, Thursday. day, 30°; night, 13°; clear
27
+23
+14
27 September, fri
+23
+14
Feels like
+19
721 mmHg
73%
2.5
m/s
NW
Climate normal
+23
+16
27 September, Friday. day, 23°; night, 14°; partly cloudy
28
+24
+15
28 September, sat
+24
+15
Feels like
+19
718 mmHg
70%
3.8
m/s
SW
Climate normal
+21
+15
28 September, Saturday. day, 24°; night, 15°; mostly clear
29
+21
+11
29 September, sun
+21
+11
Feels like
+15
720 mmHg
77%
2.6
m/s
W
Climate normal
+20
+15
29 September, Sunday. day, 21°; night, 11°; partly cloudy
30
+21
+13
30 September, mon
+21
+13
Feels like
+16
720 mmHg
70%
2.4
m/s
SW
Climate normal
+19
+14
30 September, Monday. day, 21°; night, 13°; partly cloudy
1 October
+15
+7
1 October, tue
+15
+7
Feels like
+11
720 mmHg
96%
4
m/s
W
Climate normal
+18
+14
1 October, Tuesday. day, 15°; night, 7°; rain
2
+17
+8
2 October, wed
+17
+8
Feels like
+10
723 mmHg
73%
3.1
m/s
E
Climate normal
+18
+13
2 October, Wednesday. day, 17°; night, 8°; mostly clear
3
+20
+10
3 October, thu
+20
+10
Feels like
+13
720 mmHg
56%
2.3
m/s
E
Climate normal
+19
+14
3 October, Thursday. day, 20°; night, 10°; mostly clear
4
+22
+10
4 October, fri
+22
+10
Feels like
+14
720 mmHg
57%
2.3
m/s
SW
Climate normal
+20
+15
4 October, Friday. day, 22°; night, 10°; mostly clear
Average data for 10 years
Next, the average data for 10 years
5
+20
+15
5 October, sat
+20
+15
Feels like
+18
758 mmHg
56%
4.8
m/s
S
5 October, Saturday. day, 20°; night, 15°; clear
Average for 30 days
12
sunny days
5
days with precipitation
13
cloudy days
12 sunny days; 5 days with precipitation; 13 cloudy days;
66
%
air humidity
3
m/s
Wind
SW
5
mm of precipitation
(1% of annual average)
air humidity 66%; 5 millimeters of precipitation (1% of annual average); Wind south-westerly 3 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
N
SW
SW
S
N
NW
NW
S
NW
SW
SW
SW
SW
SW
W
S
NW
NE
E
E
E
E
NW
SW
W
SW
W
E
E
SW
5
Average data for 10 years
6
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
Daytime temperature
Night-time temperature
