Union Weather Forecast 15 Days, Weather in Union Today
Current weather conditions and 15 day weather forecast for Union, Wisconsin, 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
| 25 December 2025 Thursday -3.5 ° C / 25.7°F  Overcast |
Feels Like : -7.7 ° C / 18.1°F Humidity : % 86 Pressure : 1022 mb Wind Speed : 10.8 kmph / 6.7 miles from ENE  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15 day weather forecast for Union, WI, 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, Wisconsin 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 25 December 2025 Thursday | Overcast |
-7.3 ° C (18.9°F) |
-0.7 ° C (30.7°F) |
-3.7 ° C (25.3°F) |
% 83 | 0% | 0.2 | Sunrise:07:50 AM Sunset: 04:29 PM |
Moonrise:11:09 AM Moonset: 10:28 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday |  Mist |
-2.7 ° C (27.2°F) |
0.9 ° C (33.6°F) |
-1.1 ° C (30°F) |
% 94 | 0% | 0.1 | Sunrise:07:50 AM Sunset: 04:29 PM |
Moonrise:11:27 AM Moonset: 11:41 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Mist |
-0.4 ° C (31.3°F) |
0.7 ° C (33.3°F) |
0.4 ° C (32.7°F) |
% 97 | 0% | 0.1 | Sunrise:07:51 AM Sunset: 04:30 PM |
Moonrise:11:44 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday |  Light freezing rain |
-14.1 ° C (6.6°F) |
-0.9 ° C (30.3°F) |
-6.6 ° C (20.2°F) |
% 83 | 88% | 0.1 | Sunrise:07:51 AM Sunset: 04:31 PM |
Moonrise:12:03 PM Moonset: 12:56 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday | Overcast |
-15.2 ° C (4.7°F) |
-11.1 ° C (12°F) |
-13.8 ° C (7.1°F) |
% 74 | 0% | 0 | Sunrise:07:51 AM Sunset: 04:32 PM |
Moonrise:12:25 PM Moonset: 02:14 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday |  Partly Cloudy |
-11.1 ° C (11.9°F) |
-2.6 ° C (27.3°F) |
-6.9 ° C (19.6°F) |
% 78 | 0% | 2 | Sunrise:07:51 AM Sunset: 04:33 PM |
Moonrise:12:53 PM Moonset: 03:37 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday |  Moderate snow |
-9.1 ° C (15.6°F) |
-6.1 ° C (21.1°F) |
-6.7 ° C (19.9°F) |
% 86 | 79% | 1 | Sunrise:07:51 AM Sunset: 04:33 PM |
Moonrise:01:31 PM Moonset: 05:02 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 January 2026 Thursday |  Cloudy |
-15.7 ° C (3.7°F) |
-13.1 ° C (8.3°F) |
-13.8 ° C (7.2°F) |
% 73 | 0% | 1 | Sunrise:07:51 AM Sunset: 04:34 PM |
Moonrise:02:23 PM Moonset: 06:24 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 January 2026 Friday | Partly Cloudy |
-15.2 ° C (4.6°F) |
-8.2 ° C (17.3°F) |
-12 ° C (10.4°F) |
% 78 | 0% | 2 | Sunrise:07:51 AM Sunset: 04:35 PM |
Moonrise:03:30 PM Moonset: 07:36 AM Moon Phase ( Waxing Gibbous ) |
|
| 03 January 2026 Saturday | Overcast |
-8.7 ° C (16.4°F) |
-2.7 ° C (27.2°F) |
-4.8 ° C (23.4°F) |
% 89 | 0% | 1 | Sunrise:07:51 AM Sunset: 04:36 PM |
Moonrise:04:49 PM Moonset: 08:31 AM Moon Phase ( Full Moon ) |
|
| 04 January 2026 Sunday | Light freezing rain |
-2.5 ° C (27.5°F) |
0.9 ° C (33.6°F) |
-1.1 ° C (30°F) |
% 95 | 83% | 1 | Sunrise:07:51 AM Sunset: 04:37 PM |
Moonrise:06:13 PM Moonset: 09:12 AM Moon Phase ( Waning Gibbous ) |
|
| 05 January 2026 Monday | Mist |
-3.8 ° C (25.1°F) |
2.1 ° C (35.7°F) |
-1.4 ° C (29.6°F) |
% 90 | 0% | 1 | Sunrise:07:51 AM Sunset: 04:38 PM |
Moonrise:07:35 PM Moonset: 09:42 AM Moon Phase ( Waning Gibbous ) |
|
| 06 January 2026 Tuesday | Partly Cloudy |
-9.5 ° C (14.8°F) |
-4.3 ° C (24.2°F) |
-7.3 ° C (18.9°F) |
% 84 | 0% | 2 | Sunrise:07:51 AM Sunset: 04:39 PM |
Moonrise:08:52 PM Moonset: 10:04 AM Moon Phase ( Waning Gibbous ) |
|
| 07 January 2026 Wednesday |  Patchy moderate snow |
-11 ° C (12.1°F) |
-1.3 ° C (29.6°F) |
-5.1 ° C (22.7°F) |
% 83 | 80% | 1 | Sunrise:07:50 AM Sunset: 04:41 PM |
Moonrise:10:04 PM Moonset: 10:23 AM Moon Phase ( Waning Gibbous ) |
|
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