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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
+9
+8
22 April, mon
+9
+8
Feels like
+5
755 mmHg
81%
7.1
m/s
W
+8
22 April, Monday. day, 9°; night, 8°; rain
23
+12
+7
23 April, tue
+12
+7
Feels like
+8
754 mmHg
72%
6.9
m/s
NW
+9
23 April, Tuesday. day, 12°; night, 7°; partly cloudy
24
+10
+8
24 April, wed
+10
+8
Feels like
+6
756 mmHg
68%
6.1
m/s
SW
+9
24 April, Wednesday. day, 10°; night, 8°; partly cloudy
25
April
+10
−1
25 April, thu
+10
−1
Feels like
0
768 mmHg
38%
5.4
m/s
S
+7
Climate normal
+11
+8
25 April, Thursday. day, 10°; night, -1°; clear
26
+12
0
26 April, fri
+12
0
Feels like
+3
772 mmHg
42%
5.2
m/s
NW
+7
Climate normal
+9
+7
26 April, Friday. day, 12°; night, 0°; clear
27
+13
+7
27 April, sat
+13
+7
Feels like
+5
772 mmHg
50%
6.4
m/s
S
+8
Climate normal
+11
+7
27 April, Saturday. day, 13°; night, 7°; clear
28
+13
+9
28 April, sun
+13
+9
Feels like
+8
763 mmHg
74%
5.6
m/s
S
+7
Climate normal
+10
+8
28 April, Sunday. day, 13°; night, 9°; mostly clear
29
+19
+8
29 April, mon
+19
+8
Feels like
+14
763 mmHg
67%
3.9
m/s
NE
+8
Climate normal
+10
+7
29 April, Monday. day, 19°; night, 8°; overcast
30
+9
+6
30 April, tue
+9
+6
Feels like
+3
765 mmHg
77%
4.9
m/s
SE
+9
Climate normal
+10
+7
30 April, Tuesday. day, 9°; night, 6°; overcast
1 May
+10
+8
1 May, wed
+10
+8
Feels like
+5
761 mmHg
83%
4.3
m/s
E
+10
Climate normal
+10
+8
1 May, Wednesday. day, 10°; night, 8°; light rain
2
+18
+8
2 May, thu
+18
+8
Feels like
+11
758 mmHg
66%
4.6
m/s
SW
+11
Climate normal
+11
+8
2 May, Thursday. day, 18°; night, 8°; partly cloudy
3
+14
+6
3 May, fri
+14
+6
Feels like
+8
756 mmHg
68%
4.4
m/s
W
Climate normal
+12
+8
3 May, Friday. day, 14°; night, 6°; overcast
4
+12
+6
4 May, sat
+12
+6
Feels like
+7
758 mmHg
62%
4.1
m/s
SW
Climate normal
+11
+9
4 May, Saturday. day, 12°; night, 6°; overcast
5
+15
+7
5 May, sun
+15
+7
Feels like
+7
761 mmHg
59%
4.9
m/s
SE
Climate normal
+12
+8
5 May, Sunday. day, 15°; night, 7°; partly cloudy
6
+14
+8
6 May, mon
+14
+8
Feels like
+7
758 mmHg
62%
4.9
m/s
W
Climate normal
+13
+9
6 May, Monday. day, 14°; night, 8°; overcast
7
+13
+9
7 May, tue
+13
+9
Feels like
+6
757 mmHg
71%
5.7
m/s
NW
Climate normal
+11
+10
7 May, Tuesday. day, 13°; night, 9°; overcast
8
+10
+8
8 May, wed
+10
+8
Feels like
+5
761 mmHg
80%
5
m/s
S
Climate normal
+11
+9
8 May, Wednesday. day, 10°; night, 8°; rain
9
+10
+9
9 May, thu
+10
+9
Feels like
+5
755 mmHg
85%
5.1
m/s
NE
Climate normal
+13
+9
9 May, Thursday. day, 10°; night, 9°; light rain
10
+9
+7
10 May, fri
+9
+7
Feels like
+5
752 mmHg
86%
5
m/s
E
Climate normal
+13
+9
10 May, Friday. day, 9°; night, 7°; light rain
11
+12
+9
11 May, sat
+12
+9
Feels like
+7
751 mmHg
88%
2.5
m/s
S
Climate normal
+14
+10
11 May, Saturday. day, 12°; night, 9°; light rain
12
+14
+9
12 May, sun
+14
+9
Feels like
+9
753 mmHg
83%
4.7
m/s
NW
Climate normal
+13
+9
12 May, Sunday. day, 14°; night, 9°; mostly clear
13
+13
+9
13 May, mon
+13
+9
Feels like
+6
758 mmHg
79%
5.9
m/s
SW
Climate normal
+12
+9
13 May, Monday. day, 13°; night, 9°; clear
14
+16
+12
14 May, tue
+16
+12
Feels like
+9
761 mmHg
78%
7.6
m/s
S
Climate normal
+13
+10
14 May, Tuesday. day, 16°; night, 12°; mostly clear
15
+18
+15
15 May, wed
+18
+15
Feels like
+10
759 mmHg
78%
9
m/s
SW
Climate normal
+14
+10
15 May, Wednesday. day, 18°; night, 15°; partly cloudy
16
+16
+12
16 May, thu
+16
+12
Feels like
+11
761 mmHg
63%
3.8
m/s
NE
Climate normal
+14
+11
16 May, Thursday. day, 16°; night, 12°; mostly clear
17
+17
+13
17 May, fri
+17
+13
Feels like
+12
764 mmHg
68%
4.1
m/s
S
Climate normal
+13
+11
17 May, Friday. day, 17°; night, 13°; mostly clear
18
+16
+12
18 May, sat
+16
+12
Feels like
+12
765 mmHg
83%
5.6
m/s
SE
Climate normal
+13
+10
18 May, Saturday. day, 16°; night, 12°; partly cloudy
19
+15
+13
19 May, sun
+15
+13
Feels like
+12
761 mmHg
93%
4.5
m/s
SE
Climate normal
+15
+11
19 May, Sunday. day, 15°; night, 13°; partly cloudy
20
+19
+16
20 May, mon
+19
+16
Feels like
+14
760 mmHg
88%
7
m/s
SW
Climate normal
+15
+12
20 May, Monday. day, 19°; night, 16°; mostly clear
21
+16
+15
21 May, tue
+16
+15
Feels like
+12
762 mmHg
70%
6
m/s
NW
Climate normal
+13
+11
21 May, Tuesday. day, 16°; night, 15°; rain
22
+16
+15
22 May, wed
+16
+15
Feels like
+13
759 mmHg
67%
4.9
m/s
E
Climate normal
+13
+10
22 May, Wednesday. day, 16°; night, 15°; rain
23
+20
+16
23 May, thu
+20
+16
Feels like
+15
749 mmHg
74%
5.6
m/s
S
Climate normal
+17
+12
23 May, Thursday. day, 20°; night, 16°; rain
24
+19
+13
24 May, fri
+19
+13
Feels like
+16
746 mmHg
83%
3.4
m/s
S
Climate normal
+15
+13
24 May, Friday. day, 19°; night, 13°; light rain
Average data for 10 years
Next, the average data for 10 years
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
11
sunny days
8
days with precipitation
11
cloudy days
11 sunny days; 8 days with precipitation; 11 cloudy days;
72
%
air humidity
5.1
m/s
Wind
S
6
mm of precipitation
(1% of annual average)
+8
°C
Water temperature
air humidity 72%; 6 millimeters of precipitation (1% of annual average); Wind southerly 5.1 Meters per second; Water temperature +8°
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
S
NW
S
S
NE
SE
E
SW
W
SW
SE
W
NW
S
NE
E
S
NW
SW
S
SW
NE
S
SE
SE
SW
NW
E
S
S
25
Average data for 10 years
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
23
24
Daytime temperature
Night-time temperature
