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
| 15 March 2026 Sun 7.6 ° C ( 45.7°F )  Clear |
Feels Like : 5.4 ° C / 41.8°F Humidity : % 37 Pressure : 1021 mb Wind Speed : 11.9 kmph / 7.4 miles from E 
Visibility : 16 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 |
|---|---|---|---|---|---|---|---|
| 14 March 2026 Sat | Sunny |
2.3 ° C | 15.4 ° C | 8.8 ° C | % 36 | 17.6 km/h | 0% |
| 15 March 2026 Sun |  Overcast |
6.4 ° C | 21.7 ° C | 14.4 ° C | % 50 | 30.6 km/h | 0% |
| 16 March 2026 Mon |  Heavy rain |
-3.2 ° C | 9.6 ° C | 5.8 ° C | % 69 | 29.2 km/h | 81% |
| 17 March 2026 Tue |  Partly Cloudy |
-4.3 ° C | 2 ° C | -2.5 ° C | % 49 | 20.2 km/h | 0% |
| 18 March 2026 Wed |  Patchy rain nearby |
-4.2 ° C | 7.3 ° C | 1.2 ° C | % 56 | 19.1 km/h | 83% |
| 19 March 2026 Thu |  Cloudy |
2.1 ° C | 14.4 ° C | 5.9 ° C | % 77 | 13.3 km/h | 0% |
| 20 March 2026 Fri | Cloudy |
6.3 ° C | 18.1 ° C | 12 ° C | % 77 | 10.8 km/h | 0% |
| 21 March 2026 Sat | Cloudy |
8.5 ° C | 18.5 ° C | 12.9 ° C | % 78 | 9.7 km/h | 0% |
| 22 March 2026 Sun | Sunny |
8.8 ° C | 23.8 ° C | 15.4 ° C | % 77 | 15.5 km/h | 0% |
| 23 March 2026 Mon | Sunny |
16.5 ° C | 26.1 ° C | 20.7 ° C | % 72 | 24.5 km/h | 0% |
| 24 March 2026 Tue | Patchy rain nearby |
5 ° C | 8.9 ° C | 8.7 ° C | % 87 | 13.3 km/h | 86% |
| 25 March 2026 Wed | Patchy rain nearby |
0.9 ° C | 4.7 ° C | 3.4 ° C | % 75 | 24.8 km/h | 80% |
| 26 March 2026 Thu |  Heavy snow |
-2.8 ° C | -0.9 ° C | -1.5 ° C | % 97 | 27 km/h | 68% |
| 27 March 2026 Fri |  Moderate snow |
-5.4 ° C | 1.4 ° C | -1.6 ° C | % 97 | 16.6 km/h | 63% |
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