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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
30
+26
+18
30 June, Sunday. day, 26°; night, 18°; clear
1 July
+26
+18
1 July, Monday. day, 26°; night, 18°; clear
2
+25
+17
2 July, Tuesday. day, 25°; night, 17°; clear
3
+25
+17
3 July, Wednesday. day, 25°; night, 17°; clear
4
+24
+17
4 July, Thursday. day, 24°; night, 17°; clear
5
+25
+18
5 July, Friday. day, 25°; night, 18°; clear
6
July
+37
+16
6 July, Saturday. day, 37°; night, 16°; clear
7
+37
+17
7 July, Sunday. day, 37°; night, 17°; clear
8
+38
+19
8 July, Monday. day, 38°; night, 19°; clear
9
+38
+17
9 July, Tuesday. day, 38°; night, 17°; clear
10
+32
+15
10 July, Wednesday. day, 32°; night, 15°; clear
11
+28
+13
11 July, Thursday. day, 28°; night, 13°; clear
12
+30
+14
12 July, Friday. day, 30°; night, 14°; clear
13
+30
+14
13 July, Saturday. day, 30°; night, 14°; clear
14
+30
+14
14 July, Sunday. day, 30°; night, 14°; mostly clear
15
+28
+15
15 July, Monday. day, 28°; night, 15°; light rain
16
+28
+15
16 July, Tuesday. day, 28°; night, 15°; partly cloudy
17
+26
+13
17 July, Wednesday. day, 26°; night, 13°; light rain
18
+24
+11
18 July, Thursday. day, 24°; night, 11°; light rain
19
+21
+9
19 July, Friday. day, 21°; night, 9°; partly cloudy
20
+23
+8
20 July, Saturday. day, 23°; night, 8°; clear
21
+25
+10
21 July, Sunday. day, 25°; night, 10°; clear
22
+27
+10
22 July, Monday. day, 27°; night, 10°; clear
23
+29
+8
23 July, Tuesday. day, 29°; night, 8°; clear
24
+29
+9
24 July, Wednesday. day, 29°; night, 9°; clear
25
+33
+13
25 July, Thursday. day, 33°; night, 13°; clear
26
+35
+16
26 July, Friday. day, 35°; night, 16°; clear
27
+37
+15
27 July, Saturday. day, 37°; night, 15°; clear
28
+37
+20
28 July, Sunday. day, 37°; night, 20°; clear
29
+34
+14
29 July, Monday. day, 34°; night, 14°; partly cloudy
30
+32
+16
30 July, Tuesday. day, 32°; night, 16°; mostly clear
31
+30
+13
31 July, Wednesday. day, 30°; night, 13°; mostly clear
1 August
+30
+16
1 August, Thursday. day, 30°; night, 16°; rain
2
+17
+12
2 August, Friday. day, 17°; night, 12°; light rain
3
+26
+12
3 August, Saturday. day, 26°; night, 12°; mostly clear
Average for 30 days
23
sunny days
4
days with precipitation
3
cloudy days
23 sunny days; 4 days with precipitation; 3 cloudy days;
52
%
air humidity
4
m/s
Wind
NW
2
mm of precipitation
(1% of annual average)
air humidity 52%; 2 millimeters of precipitation (1% of annual average); Wind north-westerly 4 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
N
N
N
N
NW
N
NW
NW
NW
N
W
NW
NW
NW
NW
NW
NW
NW
NW
NW
NW
NW
NW
NW
W
W
NW
W
NW
W
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
31
1
August
2
3
4
Daytime temperature
Night-time temperature