Portsmouth Regional Airport (PMH) 15 Day Weather Forecast, Portsmouth United States
Current weather conditions and 15 day weather forecast for Portsmouth Regional Airport in Portsmouth, United States including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.
Current weather conditions at PMH
| 25 September 2026 Fri 9.9 ° C ( 49.8°F )  Clear |
Feels Like : 8.4 ° C / 47.1°F Humidity : % 80 Pressure : 1024 mb Wind Speed : 9 kmph / 5.6 miles from NE 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15-day weather forecast for Portsmouth Regional Airport, Portsmouth, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 25 September 2026 Fri | Sunny |
6.8 ° C | 20.1 ° C | 13.1 ° C | % 66 | 14.4 km/h | 6% |
| 26 September 2026 Sat | Sunny |
8.7 ° C | 20.8 ° C | 14 ° C | % 70 | 11.9 km/h | 9% |
| 27 September 2026 Sun | Sunny |
8.4 ° C | 20.7 ° C | 14 ° C | % 74 | 15.1 km/h | 7% |
| 28 September 2026 Mon | Sunny |
10.4 ° C | 21.9 ° C | 15.9 ° C | % 72 | 9.7 km/h | 9% |
| 29 September 2026 Tue |  Overcast |
16.3 ° C | 22.8 ° C | 18.7 ° C | % 73 | 7.6 km/h | 20% |
| 30 September 2026 Wed | Overcast |
15.8 ° C | 25.2 ° C | 19.5 ° C | % 71 | 9 km/h | 17% |
| 01 October 2026 Thu | Sunny |
17 ° C | 29.2 ° C | 22 ° C | % 60 | 11.9 km/h | 6% |
| 02 October 2026 Fri | Overcast |
18.8 ° C | 27.5 ° C | 22.6 ° C | % 65 | 12.2 km/h | 8% |
| 03 October 2026 Sat | Overcast |
19.6 ° C | 27.1 ° C | 22.6 ° C | % 72 | 9 km/h | 18% |
| 04 October 2026 Sun |  Light rain shower |
18.4 ° C | 20.2 ° C | 18.9 ° C | % 97 | 19.1 km/h | 94% |
| 05 October 2026 Mon | Overcast |
10.2 ° C | 20.7 ° C | 16.1 ° C | % 92 | 14.4 km/h | 92% |
| 06 October 2026 Tue | Overcast |
7.4 ° C | 12.6 ° C | 9.9 ° C | % 64 | 15.8 km/h | 15% |
| 07 October 2026 Wed | Sunny |
3.6 ° C | 11.9 ° C | 7.9 ° C | % 65 | 10.8 km/h | 6% |
| 08 October 2026 Thu |  Cloudy |
5.6 ° C | 14 ° C | 9.1 ° C | % 69 | 7.9 km/h | 11% |
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