Currently: 25 °F. Passing clouds. (Weather station: Norfolk Naval Air Station, USA). See more current weatherPast Weather in Portsmouth — Graph
Portsmouth Temperature Yesterday
Maximum temperature yesterday: 39 °F (at 2:59 pm)
Minimum temperature yesterday: 26 °F (at 9:59 pm)
Average temperature yesterday: 33 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 74 °F (Jan 10, 2:59 pm) | 100% (Jan 9, 3:59 am) | 30.55 "Hg (Jan 9, 3:59 am) |
| Low | 23 °F (Jan 21, 4:59 am) | 17% (Jan 17, 11:59 am) | 29.49 "Hg (Jan 15, 12:59 am) |
| Average | 46 °F | 63% | 30.05 "Hg |
| * Reported Jan 6 6:59 am — Jan 21 6:59 am, Portsmouth. Weather by CustomWeather, © 2026 | |||
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
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| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 6:59 am Wed, Jan 21 |  | 23 °F | Clear. | No wind | ↑ | 92% | 30.55 "Hg | 10 mi |
| 5:59 am | | 23 °F | Clear. | No wind | ↑ | 96% | 30.54 "Hg | 10 mi |
| 4:59 am | | 23 °F | Clear. | No wind | ↑ | 96% | 30.54 "Hg | 10 mi |
| 3:59 am | | 24 °F | Clear. | No wind | ↑ | 88% | 30.54 "Hg | 10 mi |
| 2:59 am | | 24 °F | Clear. | 3 mph | ↑ | 84% | 30.53 "Hg | 10 mi |
| 1:59 am | | 25 °F | Clear. | No wind | ↑ | 85% | 30.53 "Hg | 10 mi |
| 12:59 am | | 26 °F | Clear. | No wind | ↑ | 81% | 30.53 "Hg | 10 mi |
| 11:59 pm Tue, Jan 20 | | 26 °F | Clear. | No wind | ↑ | 81% | 30.53 "Hg | 10 mi |
| 10:59 pm | | 26 °F | Clear. | No wind | ↑ | 81% | 30.52 "Hg | 10 mi |
| 9:59 pm |  | 26 °F | Passing clouds. | No wind | ↑ | 81% | 30.52 "Hg | 10 mi |
| 8:59 pm | | 27 °F | Passing clouds. | No wind | ↑ | 78% | 30.51 "Hg | 10 mi |
| 7:59 pm | | 28 °F | Passing clouds. | No wind | ↑ | 72% | 30.49 "Hg | 10 mi |
| 6:59 pm | | 29 °F | Passing clouds. | No wind | ↑ | 69% | 30.46 "Hg | 10 mi |
| 5:59 pm | | 31 °F | Passing clouds. | No wind | ↑ | 64% | 30.43 "Hg | 10 mi |
| 4:59 pm | | 34 °F | Passing clouds. | 5 mph | ↑ | 52% | 30.40 "Hg | 10 mi |
| 3:59 pm | | 38 °F | Passing clouds. | 7 mph | ↑ | 33% | 30.38 "Hg | 10 mi |
| 2:59 pm | | 39 °F | Passing clouds. | 7 mph | ↑ | 30% | 30.37 "Hg | 10 mi |
| 1:59 pm |  | 37 °F | Sunny. | 7 mph | ↑ | 33% | 30.37 "Hg | 10 mi |
| 12:59 pm | | 37 °F | Passing clouds. | 7 mph | ↑ | 34% | 30.40 "Hg | 10 mi |
| 11:59 am | | 36 °F | Passing clouds. | 5 mph | ↑ | 48% | 30.42 "Hg | 10 mi |
| 10:59 am | | 35 °F | Passing clouds. | 7 mph | ↑ | 52% | 30.43 "Hg | 10 mi |
| 9:59 am | | 35 °F | Sunny. | 8 mph | ↑ | 54% | 30.43 "Hg | 10 mi |
| 8:59 am | | 34 °F | Sunny. | 8 mph | ↑ | 59% | 30.41 "Hg | 10 mi |
| Weather by CustomWeather, © 2026 | ||||||||