Union Weather Forecast 15 Days, Weather in Union Today
Current weather conditions and 15 day weather forecast for Union, 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 Union
| 18 December 2025 Thursday -1.7 ° C / 28.9°F  Clear |
Feels Like : -5.5 ° C / 22.2°F Humidity : % 85 Pressure : 1020 mb Wind Speed : 10.4 kmph / 6.5 miles from WNW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Union, NH, USA
Weather Forecast for next 15 Days for Union 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 Union, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 18 December 2025 Thursday | Sunny |
-5.3 ° C (22.5°F) |
6.6 ° C (43.9°F) |
0.2 ° C (32.4°F) |
% 69 | 0% | 0.3 | Sunrise:07:13 AM Sunset: 04:09 PM |
Moonrise:06:17 AM Moonset: 02:39 PM Moon Phase ( Waning Crescent ) |
|
| 19 December 2025 Friday |  Heavy rain |
-0.7 ° C (30.8°F) |
10.8 ° C (51.4°F) |
5.9 ° C (42.7°F) |
% 90 | 88% | 0 | Sunrise:07:13 AM Sunset: 04:09 PM |
Moonrise:07:16 AM Moonset: 03:26 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday |  Light freezing rain |
-8.2 ° C (17.2°F) |
-2.5 ° C (27.5°F) |
-4.4 ° C (24.1°F) |
% 58 | 86% | 0.2 | Sunrise:07:14 AM Sunset: 04:10 PM |
Moonrise:08:08 AM Moonset: 04:22 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday |  Moderate or heavy snow showers |
-4.5 ° C (23.9°F) |
4 ° C (39.2°F) |
-0.8 ° C (30.6°F) |
% 70 | 62% | 0.2 | Sunrise:07:14 AM Sunset: 04:10 PM |
Moonrise:08:51 AM Moonset: 05:25 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday | Sunny |
-8.7 ° C (16.3°F) |
-4.8 ° C (23.4°F) |
-6.3 ° C (20.6°F) |
% 61 | 0% | 0 | Sunrise:07:15 AM Sunset: 04:11 PM |
Moonrise:09:27 AM Moonset: 06:32 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday |  Partly Cloudy |
-11 ° C (12.2°F) |
-4.1 ° C (24.5°F) |
-7.6 ° C (18.3°F) |
% 60 | 0% | 2 | Sunrise:07:15 AM Sunset: 04:11 PM |
Moonrise:09:55 AM Moonset: 07:42 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Partly Cloudy |
-6.6 ° C (20.1°F) |
-0.2 ° C (31.7°F) |
-4.1 ° C (24.6°F) |
% 76 | 0% | 2 | Sunrise:07:16 AM Sunset: 04:12 PM |
Moonrise:10:19 AM Moonset: 08:51 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday | Sunny |
-7.1 ° C (19.2°F) |
-1.5 ° C (29.3°F) |
-5.2 ° C (22.6°F) |
% 80 | 0% | 2 | Sunrise:07:16 AM Sunset: 04:12 PM |
Moonrise:10:40 AM Moonset: 10:01 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Partly Cloudy |
-9.7 ° C (14.5°F) |
-3.7 ° C (25.4°F) |
-6.6 ° C (20.1°F) |
% 64 | 0% | 2 | Sunrise:07:16 AM Sunset: 04:13 PM |
Moonrise:10:59 AM Moonset: 11:11 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday |  Ice pellets |
-4.6 ° C (23.7°F) |
3.3 ° C (38°F) |
-0.1 ° C (31.8°F) |
% 88 | 62% | 1 | Sunrise:07:17 AM Sunset: 04:14 PM |
Moonrise:11:19 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Partly Cloudy |
-11.3 ° C (11.7°F) |
-4.8 ° C (23.4°F) |
-5.9 ° C (21.4°F) |
% 65 | 0% | 2 | Sunrise:07:17 AM Sunset: 04:14 PM |
Moonrise:11:40 AM Moonset: 12:23 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday | Sunny |
-11.9 ° C (10.5°F) |
-5.3 ° C (22.5°F) |
-9.4 ° C (15.1°F) |
% 59 | 0% | 2 | Sunrise:07:17 AM Sunset: 04:15 PM |
Moonrise:12:04 PM Moonset: 01:40 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday |  Patchy moderate snow |
-10.1 ° C (13.7°F) |
-3.9 ° C (25°F) |
-6.8 ° C (19.8°F) |
% 65 | 89% | 1 | Sunrise:07:17 AM Sunset: 04:16 PM |
Moonrise:12:34 PM Moonset: 02:59 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday |  Freezing fog |
-4.3 ° C (24.2°F) |
-0.5 ° C (31.1°F) |
-2.2 ° C (28°F) |
% 97 | 69% | 1 | Sunrise:07:17 AM Sunset: 04:17 PM |
Moonrise:01:14 PM Moonset: 04:21 AM Moon Phase ( Waxing Gibbous ) |
|
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