Swansea Weather Forecast 15 Days, Weather in Swansea Today
Current weather conditions and 15 day weather forecast for Swansea, Illinois, 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 Swansea
| 23 December 2025 Tuesday 8.3 ° C / 46.9°F  Fog |
Feels Like : 6.3 ° C / 43.4°F Humidity : % 93 Pressure : 1020 mb Wind Speed : 11.5 kmph / 7.2 miles from SSW  Visibility : 0.2 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Swansea, IL, USA
Weather Forecast for next 15 Days for Swansea 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 Swansea, Illinois 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 23 December 2025 Tuesday |  Partly Cloudy |
4.5 ° C (40.1°F) |
17.5 ° C (63.5°F) |
10.1 ° C (50.1°F) |
% 90 | 0% | 0.4 | Sunrise:07:15 AM Sunset: 04:43 PM |
Moonrise:09:59 AM Moonset: 08:14 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Fog |
9.3 ° C (48.7°F) |
15.4 ° C (59.8°F) |
11.9 ° C (53.5°F) |
% 98 | 0% | 0.3 | Sunrise:07:16 AM Sunset: 04:44 PM |
Moonrise:10:26 AM Moonset: 09:19 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday |  Overcast |
8.3 ° C (46.9°F) |
13.6 ° C (56.4°F) |
12.3 ° C (54.1°F) |
% 94 | 0% | 0.2 | Sunrise:07:16 AM Sunset: 04:45 PM |
Moonrise:10:51 AM Moonset: 10:24 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday |  Sunny |
9.6 ° C (49.3°F) |
18.4 ° C (65.1°F) |
16.3 ° C (61.3°F) |
% 75 | 0% | 0.4 | Sunrise:07:16 AM Sunset: 04:45 PM |
Moonrise:11:15 AM Moonset: 11:31 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Overcast |
7.7 ° C (45.8°F) |
16.4 ° C (61.5°F) |
12.1 ° C (53.9°F) |
% 86 | 0% | 0 | Sunrise:07:17 AM Sunset: 04:46 PM |
Moonrise:11:39 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Sunny |
0.4 ° C (32.7°F) |
6.2 ° C (43.2°F) |
5.6 ° C (42°F) |
% 60 | 0% | 3 | Sunrise:07:17 AM Sunset: 04:47 PM |
Moonrise:12:04 PM Moonset: 12:38 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday | Sunny |
-0.9 ° C (30.3°F) |
5.7 ° C (42.3°F) |
1.7 ° C (35°F) |
% 47 | 0% | 2 | Sunrise:07:17 AM Sunset: 04:47 PM |
Moonrise:12:33 PM Moonset: 01:50 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday | Partly Cloudy |
-1.4 ° C (29.4°F) |
5.9 ° C (42.6°F) |
1.9 ° C (35.3°F) |
% 54 | 0% | 2 | Sunrise:07:17 AM Sunset: 04:48 PM |
Moonrise:01:08 PM Moonset: 03:05 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday |  Cloudy |
4.7 ° C (40.5°F) |
11.1 ° C (52°F) |
7.6 ° C (45.7°F) |
% 67 | 0% | 2 | Sunrise:07:18 AM Sunset: 04:49 PM |
Moonrise:01:52 PM Moonset: 04:23 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 January 2026 Thursday |  Moderate rain |
8.7 ° C (47.7°F) |
10.9 ° C (51.6°F) |
9.8 ° C (49.6°F) |
% 95 | 83% | 2 | Sunrise:07:18 AM Sunset: 04:50 PM |
Moonrise:02:48 PM Moonset: 05:41 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 January 2026 Friday | Overcast |
6.2 ° C (43.1°F) |
11.5 ° C (52.8°F) |
8.3 ° C (47°F) |
% 84 | 0% | 2 | Sunrise:07:18 AM Sunset: 04:51 PM |
Moonrise:03:56 PM Moonset: 06:51 AM Moon Phase ( Waxing Gibbous ) |
|
| 03 January 2026 Saturday | Overcast |
3.9 ° C (39°F) |
9.6 ° C (49.3°F) |
6.4 ° C (43.5°F) |
% 76 | 0% | 2 | Sunrise:07:18 AM Sunset: 04:51 PM |
Moonrise:05:11 PM Moonset: 07:50 AM Moon Phase ( Full Moon ) |
|
| 04 January 2026 Sunday |  Patchy rain nearby |
3.3 ° C (38°F) |
9.2 ° C (48.6°F) |
7 ° C (44.6°F) |
% 87 | 0% | 2 | Sunrise:07:18 AM Sunset: 04:52 PM |
Moonrise:06:27 PM Moonset: 08:36 AM Moon Phase ( Waning Gibbous ) |
|
| 05 January 2026 Monday | Partly Cloudy |
1 ° C (33.7°F) |
8.5 ° C (47.3°F) |
4.3 ° C (39.8°F) |
% 78 | 0% | 2 | Sunrise:07:18 AM Sunset: 04:53 PM |
Moonrise:07:42 PM Moonset: 09:13 AM Moon Phase ( Waning Gibbous ) |
|
Add a link to your web page; copy and paste this html to your web page