Portsmouth Weather Forecast 15 Days, Weather in Portsmouth Today
Current weather conditions and 15 day weather forecast for Portsmouth, New Hampshire, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.
Current weather conditions at Portsmouth
| 12 February 2026 Thursday 1.8 ° C / 35.2°F  Sunny |
Feels Like : -2.3 ° C / 27.9°F Humidity : % 46 Pressure : 1009 mb Wind Speed : 15.5 kmph / 9.6 miles from NW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 25 |
15 day weather forecast for Portsmouth, NH, USA
Weather Forecast for next 15 Days for Portsmouth including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.Here is weather for the next 15 days in Portsmouth, New Hampshire state, US. To see the daily forecast, scroll to the table below.
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 12 February 2026 Thursday | Sunny |
-6.2 ° C (20.8°F) |
3.9 ° C (39°F) |
-2 ° C (28.4°F) |
% 69 | 0% | 0.5 | Sunrise:06:45 AM Sunset: 05:11 PM |
Moonrise:03:52 AM Moonset: 12:04 PM Moon Phase ( Waning Crescent ) |
|
| 13 February 2026 Friday | Sunny |
-9.2 ° C (15.4°F) |
3.2 ° C (37.8°F) |
-3.7 ° C (25.3°F) |
% 66 | 0% | 0.4 | Sunrise:06:43 AM Sunset: 05:12 PM |
Moonrise:04:41 AM Moonset: 01:02 PM Moon Phase ( Waning Crescent ) |
|
| 14 February 2026 Saturday |  Cloudy |
-6.5 ° C (20.3°F) |
5.1 ° C (41.2°F) |
-1.6 ° C (29.1°F) |
% 66 | 0% | 0.4 | Sunrise:06:42 AM Sunset: 05:13 PM |
Moonrise:05:23 AM Moonset: 02:07 PM Moon Phase ( Waning Crescent ) |
|
| 15 February 2026 Sunday |  Partly Cloudy |
-8 ° C (17.6°F) |
1.8 ° C (35.2°F) |
-4 ° C (24.8°F) |
% 64 | 0% | 0.4 | Sunrise:06:41 AM Sunset: 05:15 PM |
Moonrise:05:56 AM Moonset: 03:17 PM Moon Phase ( Waning Crescent ) |
|
| 16 February 2026 Monday | Partly Cloudy |
-6.8 ° C (19.8°F) |
1.7 ° C (35°F) |
-2.4 ° C (27.6°F) |
% 82 | 0% | 0 | Sunrise:06:39 AM Sunset: 05:16 PM |
Moonrise:06:24 AM Moonset: 04:27 PM Moon Phase ( Waning Crescent ) |
|
| 17 February 2026 Tuesday | Partly Cloudy |
-2.4 ° C (27.7°F) |
4.8 ° C (40.7°F) |
0.5 ° C (32.8°F) |
% 90 | 0% | 2 | Sunrise:06:38 AM Sunset: 05:17 PM |
Moonrise:06:48 AM Moonset: 05:39 PM Moon Phase ( New Moon ) |
|
| 18 February 2026 Wednesday |  Patchy rain nearby |
-0.9 ° C (30.4°F) |
4.2 ° C (39.6°F) |
1.6 ° C (34.9°F) |
% 96 | 82% | 1 | Sunrise:06:36 AM Sunset: 05:19 PM |
Moonrise:07:09 AM Moonset: 06:50 PM Moon Phase ( Waxing Crescent ) |
|
| 19 February 2026 Thursday | Sunny |
-5.6 ° C (21.8°F) |
1.6 ° C (35°F) |
-0.8 ° C (30.5°F) |
% 73 | 0% | 2 | Sunrise:06:35 AM Sunset: 05:20 PM |
Moonrise:07:30 AM Moonset: 08:03 PM Moon Phase ( Waxing Crescent ) |
|
| 20 February 2026 Friday |  Heavy snow |
-6.1 ° C (21°F) |
-2.7 ° C (27.2°F) |
-3.9 ° C (25°F) |
% 79 | 68% | 1 | Sunrise:06:33 AM Sunset: 05:21 PM |
Moonrise:07:50 AM Moonset: 09:16 PM Moon Phase ( Waxing Crescent ) |
|
| 21 February 2026 Saturday |  Patchy moderate snow |
-7.1 ° C (19.2°F) |
0.3 ° C (32.6°F) |
-3.9 ° C (25°F) |
% 86 | 71% | 1 | Sunrise:06:32 AM Sunset: 05:23 PM |
Moonrise:08:12 AM Moonset: 10:32 PM Moon Phase ( Waxing Crescent ) |
|
| 22 February 2026 Sunday | Heavy snow |
-6.3 ° C (20.7°F) |
-3.7 ° C (25.3°F) |
-5 ° C (23°F) |
% 88 | 84% | 1 | Sunrise:06:30 AM Sunset: 05:24 PM |
Moonrise:08:38 AM Moonset: 11:51 PM Moon Phase ( Waxing Crescent ) |
|
| 23 February 2026 Monday |  Light snow showers |
-8.6 ° C (16.6°F) |
-4.7 ° C (23.5°F) |
-6.5 ° C (20.4°F) |
% 74 | 0% | 1 | Sunrise:06:29 AM Sunset: 05:25 PM |
Moonrise:09:11 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 24 February 2026 Tuesday | Cloudy |
-10.5 ° C (13.1°F) |
-3.8 ° C (25.1°F) |
-7.5 ° C (18.5°F) |
% 76 | 0% | 1 | Sunrise:06:27 AM Sunset: 05:27 PM |
Moonrise:09:52 AM Moonset: 01:09 AM Moon Phase ( First Quarter ) |
|
| 25 February 2026 Wednesday | Cloudy |
-13.2 ° C (8.2°F) |
-2.8 ° C (26.9°F) |
-8.1 ° C (17.4°F) |
% 80 | 0% | 1 | Sunrise:06:25 AM Sunset: 05:28 PM |
Moonrise:10:45 AM Moonset: 02:22 AM Moon Phase ( Waxing Gibbous ) |
|
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