Portsmouth (United States of America) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 30° Celsius; Minimum nighttime temperature: 23° Celsius;
Maximum daytime temperature: 30 degrees Celsius; Minimum nighttime temperature: 23 degrees Celsius; -
Maximum daytime temperature: 27° Celsius; Minimum nighttime temperature: 23° Celsius;
Maximum daytime temperature: 27 degrees Celsius; Minimum nighttime temperature: 23 degrees Celsius;
-
Maximum daytime temperature: 25° Celsius; Minimum nighttime temperature: 21° Celsius;
Maximum daytime temperature: 25 degrees Celsius; Minimum nighttime temperature: 21 degrees Celsius; -
Maximum daytime temperature: 22° Celsius; Minimum nighttime temperature: 19° Celsius;
Maximum daytime temperature: 22 degrees Celsius; Minimum nighttime temperature: 19 degrees Celsius; -
Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 18° Celsius;
Maximum daytime temperature: 21 degrees Celsius; Minimum nighttime temperature: 18 degrees Celsius;
-
Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 17° Celsius;
Maximum daytime temperature: 20 degrees Celsius; Minimum nighttime temperature: 17 degrees Celsius;
-
Maximum daytime temperature: 22° Celsius; Minimum nighttime temperature: 16° Celsius;
Maximum daytime temperature: 22 degrees Celsius; Minimum nighttime temperature: 16 degrees Celsius;
Clear.
Sunrise:
Sunset:
H UV
No pollution data.
No pollen data.
7 day forecast for Portsmouth
Today (20 September 2026)
| Time |
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|
| Weather symbols |  |
 |
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature |
30°
|
29°
|
29°
|
28°
|
27°
|
27°
|
| Feels like temperature (°C) |
31°
|
30°
|
30°
|
29°
|
29°
|
28°
|
| Wind direction and speed |
SSW
5
|
SSW
6
|
SSW
7
|
SSW
6
|
S
6
|
S
6
|
| Wind gust (mph) |
13
|
13
|
13
|
12
|
11
|
11
|
| Visibility |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
43%
|
52%
|
54%
|
56%
|
62%
|
65%
|
| UV | - | - | - | - | - | - |
Monday (21 September 2026)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
|
 |
|
|
|
|
 |
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
<5%
|
10%
|
30%
|
30%
|
20%
|
20%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
| Temperature (°C) |
26°
|
25°
|
25°
|
24°
|
24°
|
24°
|
23°
|
23°
|
23°
|
24°
|
25°
|
26°
|
27°
|
27°
|
27°
|
27°
|
26°
|
26°
|
25°
|
24°
|
24°
|
24°
|
23°
|
23°
|
| Feels like temperature (°C) |
27°
|
27°
|
26°
|
26°
|
25°
|
25°
|
25°
|
25°
|
25°
|
26°
|
27°
|
28°
|
28°
|
28°
|
27°
|
27°
|
27°
|
26°
|
25°
|
24°
|
24°
|
24°
|
23°
|
23°
|
| Wind direction and speed (mph) |
SSW
6
|
SSW
6
|
SSW
5
|
SW
5
|
SW
5
|
WSW
5
|
WSW
4
|
WSW
4
|
W
3
|
WNW
3
|
NNW
4
|
NNE
6
|
NE
7
|
NE
8
|
NE
9
|
ENE
10
|
ENE
10
|
ENE
11
|
ENE
12
|
ENE
11
|
E
11
|
E
10
|
E
10
|
E
10
|
| Wind gust (mph) |
11
|
10
|
10
|
10
|
10
|
9
|
8
|
7
|
8
|
10
|
13
|
16
|
18
|
19
|
20
|
21
|
22
|
22
|
22
|
21
|
21
|
20
|
19
|
18
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
G
|
G
|
G
|
G
|
VG
|
VG
|
G
|
G
|
| Humidity |
69%
|
73%
|
75%
|
77%
|
79%
|
82%
|
83%
|
86%
|
85%
|
82%
|
76%
|
74%
|
70%
|
68%
|
66%
|
67%
|
70%
|
73%
|
75%
|
75%
|
77%
|
79%
|
80%
|
81%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 3 | 5 | 6 | 7 | 7 | 6 | 4 | 2 | 1 | 1 | 1 | - | - | - | - |
Tuesday (22 September 2026)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
 |
|
|
|
|
|
 |
|
 |
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
10%
|
20%
|
30%
|
30%
|
40%
|
30%
|
50%
|
50%
|
40%
|
50%
|
60%
|
60%
|
50%
|
50%
|
60%
|
50%
|
50%
|
50%
|
40%
|
40%
|
40%
|
40%
|
30%
|
40%
|
| Temperature (°C) |
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
23°
|
23°
|
22°
|
22°
|
22°
|
22°
|
22°
|
| Feels like temperature (°C) |
23°
|
23°
|
24°
|
24°
|
24°
|
24°
|
24°
|
23°
|
24°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
22°
|
22°
|
21°
|
20°
|
20°
|
20°
|
20°
|
20°
|
| Wind direction and speed (mph) |
E
9
|
E
9
|
E
8
|
E
8
|
E
7
|
E
7
|
E
8
|
ENE
8
|
ENE
9
|
ENE
10
|
ENE
11
|
ENE
12
|
ENE
12
|
ENE
13
|
ENE
13
|
ENE
14
|
ENE
15
|
ENE
15
|
ENE
16
|
ENE
16
|
NE
15
|
NE
15
|
NE
15
|
NE
15
|
| Wind gust (mph) |
17
|
16
|
15
|
14
|
14
|
15
|
15
|
15
|
18
|
21
|
23
|
23
|
25
|
26
|
27
|
29
|
30
|
29
|
30
|
29
|
29
|
29
|
28
|
28
|
| Visibility (description) |
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
M
|
M
|
G
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
| Humidity |
82%
|
83%
|
85%
|
85%
|
86%
|
86%
|
87%
|
88%
|
87%
|
86%
|
83%
|
81%
|
81%
|
78%
|
78%
|
78%
|
79%
|
78%
|
79%
|
78%
|
78%
|
75%
|
76%
|
76%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 3 | 2 | 2 | 4 | 3 | 3 | 1 | 1 | 1 | 1 | - | - | - | - |
Wednesday (23 September 2026)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
40%
|
30%
|
30%
|
40%
|
40%
|
30%
|
30%
|
30%
|
20%
|
30%
|
30%
|
20%
|
20%
|
20%
|
20%
|
30%
|
40%
|
40%
|
40%
|
50%
|
40%
|
30%
|
40%
|
30%
|
| Temperature (°C) |
22°
|
22°
|
21°
|
21°
|
21°
|
21°
|
21°
|
21°
|
21°
|
21°
|
21°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
21°
|
21°
|
21°
|
21°
|
20°
|
20°
|
20°
|
| Feels like temperature (°C) |
20°
|
19°
|
19°
|
19°
|
19°
|
19°
|
19°
|
18°
|
18°
|
18°
|
18°
|
19°
|
19°
|
19°
|
19°
|
19°
|
19°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
17°
|
| Wind direction and speed (mph) |
NE
15
|
NE
15
|
NE
15
|
NE
15
|
NE
15
|
NE
15
|
NE
15
|
NE
15
|
NE
15
|
NE
16
|
NE
16
|
NE
17
|
NE
17
|
NE
17
|
NE
17
|
NE
17
|
NE
17
|
NE
17
|
NE
17
|
NE
17
|
NE
16
|
NE
16
|
NE
16
|
NE
16
|
| Wind gust (mph) |
28
|
28
|
28
|
28
|
28
|
28
|
28
|
29
|
30
|
31
|
32
|
32
|
32
|
32
|
32
|
32
|
32
|
32
|
32
|
31
|
31
|
31
|
30
|
30
|
| Visibility (description) |
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
G
|
G
|
G
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
| Humidity |
77%
|
77%
|
76%
|
76%
|
77%
|
78%
|
76%
|
76%
|
75%
|
74%
|
72%
|
70%
|
67%
|
68%
|
66%
|
66%
|
66%
|
69%
|
70%
|
73%
|
74%
|
75%
|
75%
|
75%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 2 | 3 | 3 | 3 | 3 | 2 | 1 | 1 | 1 | 1 | - | - | - | - |
Thursday (24 September 2026)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
40%
|
40%
|
30%
|
40%
|
40%
|
40%
|
40%
|
30%
|
30%
|
30%
|
30%
|
40%
|
30%
|
30%
|
30%
|
30%
|
30%
|
30%
|
20%
|
30%
|
30%
|
20%
|
| Temperature (°C) |
20°
|
20°
|
20°
|
20°
|
20°
|
20°
|
20°
|
20°
|
20°
|
20°
|
20°
|
20°
|
21°
|
21°
|
21°
|
21°
|
21°
|
20°
|
20°
|
20°
|
19°
|
19°
|
| Feels like temperature (°C) |
17°
|
18°
|
18°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
18°
|
17°
|
18°
|
17°
|
17°
|
17°
|
17°
|
16°
|
16°
|
16°
|
| Wind direction and speed (mph) |
NE
15
|
NE
15
|
NE
15
|
NE
15
|
NE
15
|
NE
15
|
NE
15
|
NE
15
|
NE
15
|
NE
16
|
NE
16
|
NE
17
|
NE
17
|
NE
17
|
NE
16
|
NE
16
|
NE
17
|
NE
17
|
NE
17
|
NE
16
|
NE
16
|
NNE
15
|
| Wind gust (mph) |
29
|
29
|
28
|
28
|
29
|
29
|
29
|
29
|
31
|
31
|
32
|
32
|
32
|
32
|
32
|
32
|
32
|
32
|
31
|
31
|
31
|
28
|
| Visibility (description) |
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
G
|
M
|
G
|
G
|
G
|
G
|
G
|
M
|
G
|
G
|
G
|
M
|
M
|
| Humidity |
75%
|
76%
|
77%
|
76%
|
76%
|
77%
|
76%
|
76%
|
76%
|
74%
|
72%
|
71%
|
70%
|
69%
|
66%
|
65%
|
66%
|
66%
|
67%
|
68%
|
70%
|
70%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 2 | 3 | 2 | 4 | 3 | 2 | 2 | 1 | 1 | - | - | - |
Friday (25 September 2026)
| Time |
02:00
|
05:00
|
08:00
|
11:00
|
14:00
|
17:00
|
20:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
 |
|
 |
|
| Chance of precipitation |
20%
|
20%
|
20%
|
10%
|
10%
|
10%
|
10%
|
<5%
|
| Temperature (°C) |
19°
|
18°
|
18°
|
19°
|
20°
|
20°
|
19°
|
19°
|
| Feels like temperature (°C) |
16°
|
16°
|
16°
|
16°
|
16°
|
17°
|
17°
|
17°
|
| Wind direction and speed (mph) |
NNE
14
|
NNE
14
|
NNE
14
|
NNE
14
|
N
14
|
NNE
14
|
NNE
12
|
NNE
11
|
| Wind gust (mph) |
27
|
27
|
29
|
29
|
28
|
27
|
23
|
21
|
| Visibility (description) |
G
|
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
74%
|
71%
|
72%
|
67%
|
61%
|
60%
|
58%
|
59%
|
| UV | - | - | 1 | 4 | 4 | 1 | - | - |
Saturday (26 September 2026)
| Time |
02:00
|
05:00
|
08:00
|
11:00
|
14:00
|
17:00
|
20:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
10%
|
10%
|
20%
|
20%
|
20%
|
10%
|
10%
|
10%
|
| Temperature (°C) |
18°
|
17°
|
17°
|
20°
|
22°
|
22°
|
20°
|
19°
|
| Feels like temperature (°C) |
16°
|
16°
|
16°
|
17°
|
19°
|
19°
|
19°
|
18°
|
| Wind direction and speed (mph) |
N
10
|
N
10
|
N
10
|
N
12
|
N
12
|
N
11
|
N
9
|
N
8
|
| Wind gust (mph) |
19
|
19
|
25
|
25
|
25
|
23
|
18
|
16
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
62%
|
66%
|
66%
|
56%
|
48%
|
48%
|
55%
|
64%
|
| UV | - | - | 1 | 6 | 6 | 1 | - | - |
Tooltip header
UK video forecast
weather map
Forecast
Forecast for 7pm (UTC-4) Sunday
Updated 19:23 (UTC+1) on Sun 20 Sep 2026
Loading map...