Currently: 58 °F. Partly sunny. (Weather station: Norfolk Naval Air Station, USA). See more current weatherPast Weather in Portsmouth — Graph
°F
Time
Wind
(mph)
(mph)
Temp
(°F)
(°F)
45
48
51
54
57
60
63
66
69
72
75
78
Sat, Oct 11
Lo:70
12 pm
Hi:70
13
Lo:68
6 pm
Hi:70
15
Sun, Oct 12
Lo:66
12 am
Hi:68
16
Lo:66
6 am
Hi:70
21
Lo:66
12 pm
Hi:70
22
Lo:61
6 pm
Hi:66
22
Mon, Oct 13
Lo:61
12 am
Hi:61
16
Lo:61
6 am
Hi:63
16
Lo:63
12 pm
Hi:64
15
Lo:61
6 pm
Hi:63
16
Tue, Oct 14
Lo:57
12 am
Hi:61
17
Lo:59
6 am
Hi:63
17
Lo:61
12 pm
Hi:63
13
Lo:63
6 pm
Hi:64
14
Wed, Oct 15
Lo:63
12 am
Hi:64
15
Lo:61
6 am
Hi:64
12
Lo:64
12 pm
Hi:68
8
Lo:59
6 pm
Hi:66
5
Thu, Oct 16
Lo:57
12 am
Hi:64
14
Lo:57
6 am
Hi:61
16
Lo:61
12 pm
Hi:64
14
Lo:57
6 pm
Hi:63
11
Fri, Oct 17
Lo:52
12 am
Hi:59
14
Lo:52
6 am
Hi:59
13
Lo:59
12 pm
Hi:63
11
Lo:48
6 pm
Hi:61
2
Sat, Oct 18
Lo:48
12 am
Hi:52
1
Lo:52
6 am
Hi:64
6
Lo:64
12 pm
Hi:73
5
Lo:63
6 pm
Hi:70
7
Sun, Oct 19
Lo:59
12 am
Hi:63
11
Lo:59
6 am
Hi:73
12
Lo:73
12 pm
Hi:77
16
Lo:72
6 pm
Hi:73
12
Mon, Oct 20
Lo:55
12 am
Hi:72
16
Lo:55
6 am
Hi:63
17
Lo:63
12 pm
Hi:66
16
Lo:54
6 pm
Hi:64
6
Tue, Oct 21
Lo:50
12 am
Hi:54
5
Lo:48
6 am
Hi:70
7
Lo:70
12 pm
Hi:73
12
Lo:64
6 pm
Hi:70
11
Wed, Oct 22
Lo:61
12 am
Hi:64
10
Lo:57
6 am
Hi:70
11
Lo:68
12 pm
Hi:72
16
Lo:54
6 pm
Hi:68
4
Thu, Oct 23
Lo:52
12 am
Hi:55
5
Lo:54
6 am
Hi:63
12
Lo:63
12 pm
Hi:66
12
Lo:52
6 pm
Hi:63
6
Fri, Oct 24
Lo:55
12 am
Hi:57
8
Lo:55
6 am
Hi:63
7
Lo:59
12 pm
Hi:63
5
Lo:54
6 pm
Hi:59
7
Sat, Oct 25
Lo:52
12 am
Hi:55
9
Lo:50
6 am
Hi:57
7
Lo:55
12 pm
Hi:59
6
Lo:48
6 pm
Hi:55
1
Sun, Oct 26
Lo:46
12 am
Hi:48
1
Lo:48
6 am
Hi:61
6
Lo:59
12 pm
Hi:63
9
Saturday, October 11, 2025, 12:00 pm — 6:00 pm
70 / 70 °F
Mostly cloudy.
Humidity: 87%
Barometer: 29.96 "Hg
NE
Wind: 13.05 mph
Portsmouth Temperature Yesterday
Maximum temperature yesterday: 59 °F (at 3:59 pm)
Minimum temperature yesterday: 49 °F (at 11:59 pm)
Average temperature yesterday: 54 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 77 °F (Oct 19, 2:59 pm) | 100% (Oct 12, 7:56 am) | 30.45 "Hg (Oct 12, 7:56 am) |
| Low | 47 °F (Oct 26, 2:59 am) | 25% (Oct 22, 3:59 pm) | 29.74 "Hg (Oct 12, 6:59 am) |
| Average | 61 °F | 68% | 30.01 "Hg |
| * Reported Oct 11 4:18 pm — Oct 26 4:59 pm, Portsmouth. Weather by CustomWeather, © 2025 | |||
Note: Actual official high and low records may vary slightly from our data, if they occured in-between our weather recording intervals... More about our weather records
Portsmouth Weather History for the Previous 24 Hours
Scroll right to see more
| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 4:59 pm Sun, Oct 26 |  | 59 °F | Mostly cloudy. | 7 mph | ↑ | 58% | 30.34 "Hg | 10 mi |
| 3:59 pm | | 60 °F | Partly sunny. | 8 mph | ↑ | 60% | 30.34 "Hg | 10 mi |
| 2:59 pm | | 60 °F | Partly sunny. | 8 mph | ↑ | 58% | 30.35 "Hg | 10 mi |
| 1:59 pm | | 61 °F | Partly sunny. | 13 mph | ↑ | 54% | 30.36 "Hg | 10 mi |
| 12:59 pm | | 62 °F | Partly sunny. | 12 mph | ↑ | 52% | 30.39 "Hg | 10 mi |
| 11:59 am | | 60 °F | Mostly cloudy. | 10 mph | ↑ | 60% | 30.42 "Hg | 10 mi |
| 10:59 am | | 59 °F | Mostly cloudy. | 8 mph | ↑ | 54% | 30.40 "Hg | 10 mi |
| 9:59 am | | 58 °F | Mostly cloudy. | 8 mph | ↑ | 60% | 30.38 "Hg | 10 mi |
| 8:59 am | | 56 °F | More clouds than sun. | 8 mph | ↑ | 72% | 30.39 "Hg | 10 mi |
| 7:59 am |  | 55 °F | Cloudy. | 8 mph | ↑ | 69% | 30.38 "Hg | 10 mi |
| 6:59 am | | 49 °F | Mostly cloudy. | No wind | ↑ | 74% | 30.37 "Hg | 10 mi |
| 5:59 am |  | 49 °F | Passing clouds. | No wind | ↑ | 84% | 30.36 "Hg | 10 mi |
| 4:59 am | | 48 °F | Passing clouds. | No wind | ↑ | 80% | 30.35 "Hg | 10 mi |
| 3:59 am | | 48 °F | Passing clouds. | No wind | ↑ | 77% | 30.35 "Hg | 10 mi |
| 2:59 am | | 47 °F | Passing clouds. | No wind | ↑ | 77% | 30.36 "Hg | 10 mi |
| 1:59 am |  | 48 °F | Partly cloudy. | No wind | ↑ | 74% | 30.37 "Hg | 10 mi |
| 12:59 am | | 49 °F | Partly cloudy. | 3 mph | ↑ | 69% | 30.37 "Hg | 10 mi |
| 11:59 pm Sat, Oct 25 | | 49 °F | Mostly cloudy. | No wind | ↑ | 69% | 30.38 "Hg | 10 mi |
| 10:59 pm | | 51 °F | Mostly cloudy. | 3 mph | ↑ | 69% | 30.38 "Hg | 10 mi |
| 9:59 pm | | 50 °F | Overcast. | No wind | ↑ | 77% | 30.39 "Hg | 10 mi |
| 8:59 pm | | 52 °F | Passing clouds. | No wind | ↑ | 66% | 30.38 "Hg | 10 mi |
| 7:59 pm | | 51 °F | Passing clouds. | No wind | ↑ | 74% | 30.39 "Hg | 10 mi |
| 6:59 pm | | 51 °F | Passing clouds. | No wind | ↑ | 77% | 30.39 "Hg | 10 mi |
| Weather by CustomWeather, © 2025 | ||||||||