New Castle Weather Forecast 15 Days, Weather in New Castle Today
Current weather conditions and 15 day weather forecast for New Castle, 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 New Castle
| 10 May 2026 Sunday 16.4 ° C / 61.5°F  Partly cloudy |
Feels Like : 16.4 ° C / 61.5°F Humidity : % 72 Pressure : 1012 mb Wind Speed : 10.4 kmph / 6.5 miles from S  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 75 |
15 day weather forecast for New Castle, NH, USA
Weather Forecast for next 15 Days for New Castle 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 New Castle, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 10 May 2026 Sunday |  Patchy rain nearby |
8.6 ° C (47.5°F) |
23.2 ° C (73.8°F) |
14.1 ° C (57.4°F) |
% 84 | 87% | 5.7 | Sunrise:05:26 AM Sunset: 07:55 PM |
Moonrise:02:14 AM Moonset: 12:49 PM Moon Phase ( Waning Crescent ) |
|
| 11 May 2026 Monday |  Sunny |
6.3 ° C (43.3°F) |
16.5 ° C (61.7°F) |
11.1 ° C (52°F) |
% 54 | 0% | 2.3 | Sunrise:05:24 AM Sunset: 07:56 PM |
Moonrise:02:36 AM Moonset: 01:58 PM Moon Phase ( Waning Crescent ) |
|
| 12 May 2026 Tuesday | Sunny |
4 ° C (39.1°F) |
15.6 ° C (60.1°F) |
9.9 ° C (49.8°F) |
% 54 | 0% | 1.1 | Sunrise:05:23 AM Sunset: 07:57 PM |
Moonrise:02:56 AM Moonset: 03:09 PM Moon Phase ( Waning Crescent ) |
|
| 13 May 2026 Wednesday | Patchy rain nearby |
5.6 ° C (42°F) |
17.1 ° C (62.8°F) |
10.8 ° C (51.4°F) |
% 60 | 89% | 3 | Sunrise:05:22 AM Sunset: 07:58 PM |
Moonrise:03:17 AM Moonset: 04:23 PM Moon Phase ( Waning Crescent ) |
|
| 14 May 2026 Thursday |  Moderate rain |
10 ° C (49.9°F) |
16.4 ° C (61.5°F) |
11.9 ° C (53.4°F) |
% 92 | 89% | 3 | Sunrise:05:21 AM Sunset: 07:59 PM |
Moonrise:03:40 AM Moonset: 05:41 PM Moon Phase ( Waning Crescent ) |
|
| 15 May 2026 Friday | Patchy rain nearby |
8.6 ° C (47.6°F) |
16.3 ° C (61.4°F) |
10.9 ° C (51.6°F) |
% 89 | 87% | 3 | Sunrise:05:20 AM Sunset: 08:00 PM |
Moonrise:04:06 AM Moonset: 07:03 PM Moon Phase ( Waning Crescent ) |
|
| 16 May 2026 Saturday |  Cloudy |
10.4 ° C (50.7°F) |
15.9 ° C (60.7°F) |
12.4 ° C (54.3°F) |
% 80 | 0% | 3 | Sunrise:05:19 AM Sunset: 08:01 PM |
Moonrise:04:38 AM Moonset: 08:27 PM Moon Phase ( New Moon ) |
|
| 17 May 2026 Sunday | Moderate rain |
8.1 ° C (46.7°F) |
13.4 ° C (56.2°F) |
11.6 ° C (52.8°F) |
% 88 | 84% | 3 | Sunrise:05:18 AM Sunset: 08:02 PM |
Moonrise:05:21 AM Moonset: 09:47 PM Moon Phase ( Waxing Crescent ) |
|
| 18 May 2026 Monday | Moderate rain |
12.6 ° C (54.7°F) |
22.9 ° C (73.2°F) |
17.4 ° C (63.3°F) |
% 85 | 84% | 4 | Sunrise:05:17 AM Sunset: 08:03 PM |
Moonrise:06:17 AM Moonset: 10:57 PM Moon Phase ( Waxing Crescent ) |
|
| 19 May 2026 Tuesday | Sunny |
10.7 ° C (51.3°F) |
18.4 ° C (65.1°F) |
14.4 ° C (57.9°F) |
% 74 | 0% | 4 | Sunrise:05:16 AM Sunset: 08:04 PM |
Moonrise:07:26 AM Moonset: 11:53 PM Moon Phase ( Waxing Crescent ) |
|
| 20 May 2026 Wednesday | Sunny |
9.8 ° C (49.6°F) |
21 ° C (69.7°F) |
15.4 ° C (59.8°F) |
% 65 | 0% | 5 | Sunrise:05:15 AM Sunset: 08:05 PM |
Moonrise:08:42 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 21 May 2026 Thursday | Patchy rain nearby |
13.4 ° C (56°F) |
28.7 ° C (83.6°F) |
21 ° C (69.9°F) |
% 69 | 77% | 5 | Sunrise:05:14 AM Sunset: 08:06 PM |
Moonrise:10:02 AM Moonset: 12:34 AM Moon Phase ( Waxing Crescent ) |
|
| 22 May 2026 Friday | Patchy rain nearby |
13.2 ° C (55.7°F) |
26.4 ° C (79.4°F) |
19.4 ° C (66.9°F) |
% 81 | 78% | 4 | Sunrise:05:13 AM Sunset: 08:07 PM |
Moonrise:11:19 AM Moonset: 01:07 AM Moon Phase ( Waxing Crescent ) |
|
| 23 May 2026 Saturday | Sunny |
8.4 ° C (47.2°F) |
18 ° C (64.4°F) |
13.5 ° C (56.2°F) |
% 56 | 0% | 4 | Sunrise:05:13 AM Sunset: 08:08 PM |
Moonrise:12:31 PM Moonset: 01:32 AM Moon Phase ( First Quarter ) |
|
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