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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
21
+10
+7
21 April, sun
+10
+7
Feels like
+6
757 mmHg
79%
6
m/s
S
+8
21 April, Sunday. day, 10°; night, 7°; overcast
22
+12
−1
22 April, mon
+12
−1
Feels like
0
759 mmHg
39%
6.8
m/s
NW
Climate normal
+9
+8
22 April, Monday. day, 12°; night, -1°; clear
23
April
+12
+6
23 April, tue
+12
+6
Feels like
+1
763 mmHg
56%
8.6
m/s
S
+8
Climate normal
+12
+7
23 April, Tuesday. day, 12°; night, 6°; clear
24
+12
−2
24 April, wed
+12
−2
Feels like
0
755 mmHg
67%
9.3
m/s
S
+8
Climate normal
+10
+8
24 April, Wednesday. day, 12°; night, -2°; light rain
25
+10
−1
25 April, thu
+10
−1
Feels like
+2
768 mmHg
35%
5.1
m/s
NW
+7
Climate normal
+11
+8
25 April, Thursday. day, 10°; night, -1°; clear
26
+12
+3
26 April, fri
+12
+3
Feels like
+3
771 mmHg
44%
5.1
m/s
NW
+7
Climate normal
+9
+7
26 April, Friday. day, 12°; night, 3°; clear
27
+14
+7
27 April, sat
+14
+7
Feels like
+6
770 mmHg
54%
6.8
m/s
S
+7
Climate normal
+11
+7
27 April, Saturday. day, 14°; night, 7°; mostly clear
28
+15
+11
28 April, sun
+15
+11
Feels like
+9
763 mmHg
73%
5.4
m/s
S
+7
Climate normal
+10
+8
28 April, Sunday. day, 15°; night, 11°; overcast
29
+17
+9
29 April, mon
+17
+9
Feels like
+12
761 mmHg
80%
5
m/s
E
+9
Climate normal
+10
+7
29 April, Monday. day, 17°; night, 9°; overcast
30
+15
+10
30 April, tue
+15
+10
Feels like
+10
760 mmHg
83%
5
m/s
SE
+8
Climate normal
+10
+7
30 April, Tuesday. day, 15°; night, 10°; rain
1 May
+20
+9
1 May, wed
+20
+9
Feels like
+14
756 mmHg
63%
3.7
m/s
NW
Climate normal
+10
+8
1 May, Wednesday. day, 20°; night, 9°; partly cloudy
2
+15
+8
2 May, thu
+15
+8
Feels like
+9
756 mmHg
64%
4.1
m/s
NW
Climate normal
+11
+8
2 May, Thursday. day, 15°; night, 8°; overcast
3
+15
+8
3 May, fri
+15
+8
Feels like
+10
760 mmHg
66%
3.9
m/s
N
Climate normal
+12
+8
3 May, Friday. day, 15°; night, 8°; overcast
4
+16
+8
4 May, sat
+16
+8
Feels like
+10
762 mmHg
61%
5.1
m/s
S
Climate normal
+11
+9
4 May, Saturday. day, 16°; night, 8°; partly cloudy
5
+13
+7
5 May, sun
+13
+7
Feels like
+8
759 mmHg
66%
4.3
m/s
NW
Climate normal
+12
+8
5 May, Sunday. day, 13°; night, 7°; partly cloudy
6
+11
+7
6 May, mon
+11
+7
Feels like
+4
763 mmHg
64%
4.7
m/s
NW
Climate normal
+13
+9
6 May, Monday. day, 11°; night, 7°; clear
7
+11
+5
7 May, tue
+11
+5
Feels like
+4
763 mmHg
72%
5.3
m/s
E
Climate normal
+11
+10
7 May, Tuesday. day, 11°; night, 5°; clear
8
+11
+8
8 May, wed
+11
+8
Feels like
+4
763 mmHg
68%
5.8
m/s
SE
Climate normal
+11
+9
8 May, Wednesday. day, 11°; night, 8°; mostly clear
9
+13
+11
9 May, thu
+13
+11
Feels like
+1
753 mmHg
89%
13.7
m/s
S
Climate normal
+13
+9
9 May, Thursday. day, 13°; night, 11°; rain
10
+14
+9
10 May, fri
+14
+9
Feels like
+10
749 mmHg
82%
3.1
m/s
W
Climate normal
+13
+9
10 May, Friday. day, 14°; night, 9°; light rain
11
+11
+8
11 May, sat
+11
+8
Feels like
+4
752 mmHg
73%
6.4
m/s
NW
Climate normal
+14
+10
11 May, Saturday. day, 11°; night, 8°; partly cloudy
12
+12
+7
12 May, sun
+12
+7
Feels like
+4
755 mmHg
72%
6.5
m/s
W
Climate normal
+13
+9
12 May, Sunday. day, 12°; night, 7°; mostly clear
13
+13
+10
13 May, mon
+13
+10
Feels like
+5
757 mmHg
79%
7.3
m/s
E
Climate normal
+12
+9
13 May, Monday. day, 13°; night, 10°; rain
14
+10
+8
14 May, tue
+10
+8
Feels like
+1
748 mmHg
85%
10.4
m/s
NW
Climate normal
+13
+10
14 May, Tuesday. day, 10°; night, 8°; rain
15
+14
+9
15 May, wed
+14
+9
Feels like
+8
753 mmHg
77%
4.8
m/s
W
Climate normal
+14
+10
15 May, Wednesday. day, 14°; night, 9°; light rain
16
+13
+9
16 May, thu
+13
+9
Feels like
+7
758 mmHg
79%
4.9
m/s
NW
Climate normal
+14
+11
16 May, Thursday. day, 13°; night, 9°; mostly clear
17
+15
+11
17 May, fri
+15
+11
Feels like
+9
762 mmHg
71%
5.3
m/s
S
Climate normal
+13
+11
17 May, Friday. day, 15°; night, 11°; clear
18
+16
+12
18 May, sat
+16
+12
Feels like
+8
762 mmHg
72%
8.8
m/s
S
Climate normal
+13
+10
18 May, Saturday. day, 16°; night, 12°; mostly clear
19
+14
+13
19 May, sun
+14
+13
Feels like
+8
759 mmHg
85%
7.8
m/s
S
Climate normal
+15
+11
19 May, Sunday. day, 14°; night, 13°; light rain
20
+17
+13
20 May, mon
+17
+13
Feels like
+13
757 mmHg
91%
3.8
m/s
S
Climate normal
+15
+12
20 May, Monday. day, 17°; night, 13°; light rain
21
+18
+15
21 May, tue
+18
+15
Feels like
+10
755 mmHg
82%
9.2
m/s
SW
Climate normal
+13
+11
21 May, Tuesday. day, 18°; night, 15°; partly cloudy
22
+19
+16
22 May, wed
+19
+16
Feels like
+14
751 mmHg
80%
5.7
m/s
W
Climate normal
+13
+10
22 May, Wednesday. day, 19°; night, 16°; mostly clear
Average data for 10 years
Next, the average data for 10 years
23
+17
+12
23 May, thu
+17
+12
Feels like
+15
755 mmHg
80%
5.5
m/s
SW
+13
23 May, Thursday. day, 17°; night, 12°; rain
24
+15
+13
24 May, fri
+15
+13
Feels like
+12
757 mmHg
80%
6.4
m/s
NE
+12
24 May, Friday. day, 15°; night, 13°; rain
25
+16
+12
25 May, sat
+16
+12
Feels like
+13
756 mmHg
79%
6.5
m/s
SW
+13
25 May, Saturday. day, 16°; night, 12°; rain
Average for 30 days
15
sunny days
6
days with precipitation
9
cloudy days
15 sunny days; 6 days with precipitation; 9 cloudy days;
71
%
air humidity
6.2
m/s
Wind
S
12
mm of precipitation
(2% of annual average)
+8
°C
Water temperature
air humidity 71%; 12 millimeters of precipitation (2% of annual average); Wind southerly 6.2 Meters per second; Water temperature +8°
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
S
S
NW
NW
S
S
E
SE
NW
NW
N
S
NW
NW
E
SE
S
W
NW
W
E
NW
W
NW
S
S
S
S
SW
W
23
Average data for 10 years
24
25
26
27
28
29
30
1
May
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
Daytime temperature
Night-time temperature
