South Beloit Weather Forecast 15 Days, Weather in South Beloit Today
Current weather conditions and 15 day weather forecast for South Beloit, 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 South Beloit
| 25 December 2025 Thursday 4.1 ° C / 39.4°F  Overcast |
Feels Like : -0.3 ° C / 31.5°F Humidity : % 70 Pressure : 1020 mb Wind Speed : 21.6 kmph / 13.4 miles from E  Visibility : 16 km Precipitation (rainfall) : 0.02 mm Cloud (%) : 100 |
15 day weather forecast for South Beloit, IL, USA
Weather Forecast for next 15 Days for South Beloit 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 South Beloit, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 25 December 2025 Thursday |  Patchy rain nearby |
0.2 ° C (32.4°F) |
5 ° C (41°F) |
3.4 ° C (38.2°F) |
% 88 | 88% | 0.2 | Sunrise:07:25 AM Sunset: 04:28 PM |
Moonrise:10:52 AM Moonset: 10:17 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday |  Fog |
0.4 ° C (32.6°F) |
1.7 ° C (35.1°F) |
0.9 ° C (33.6°F) |
% 99 | 0% | 0.1 | Sunrise:07:25 AM Sunset: 04:29 PM |
Moonrise:11:12 AM Moonset: 11:27 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Fog |
0.3 ° C (32.5°F) |
1.7 ° C (35.1°F) |
1.2 ° C (34.2°F) |
% 97 | 0% | 0.2 | Sunrise:07:25 AM Sunset: 04:30 PM |
Moonrise:11:33 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Patchy rain nearby |
-9.6 ° C (14.8°F) |
6.1 ° C (42.9°F) |
1.1 ° C (34°F) |
% 87 | 64% | 0.1 | Sunrise:07:26 AM Sunset: 04:30 PM |
Moonrise:11:55 AM Moonset: 12:38 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday |  Light freezing rain |
-11.5 ° C (11.2°F) |
-7.3 ° C (18.8°F) |
-9.7 ° C (14.5°F) |
% 66 | 85% | 0 | Sunrise:07:26 AM Sunset: 04:31 PM |
Moonrise:12:20 PM Moonset: 01:53 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday |  Partly Cloudy |
-10.2 ° C (13.6°F) |
-0.6 ° C (30.9°F) |
-6.1 ° C (21.1°F) |
% 55 | 0% | 2 | Sunrise:07:26 AM Sunset: 04:32 PM |
Moonrise:12:52 PM Moonset: 03:12 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday |  Moderate snow |
-3.9 ° C (24.9°F) |
1.1 ° C (34°F) |
-1.8 ° C (28.8°F) |
% 75 | 66% | 1 | Sunrise:07:26 AM Sunset: 04:33 PM |
Moonrise:01:33 PM Moonset: 04:34 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 January 2026 Thursday | Light freezing rain |
-11.5 ° C (11.3°F) |
-6 ° C (21.3°F) |
-6.8 ° C (19.8°F) |
% 86 | 79% | 1 | Sunrise:07:26 AM Sunset: 04:34 PM |
Moonrise:02:27 PM Moonset: 05:53 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 January 2026 Friday | Partly Cloudy |
-13.1 ° C (8.5°F) |
-6.5 ° C (20.2°F) |
-10.3 ° C (13.4°F) |
% 79 | 0% | 2 | Sunrise:07:26 AM Sunset: 04:35 PM |
Moonrise:03:34 PM Moonset: 07:04 AM Moon Phase ( Waxing Gibbous ) |
|
| 03 January 2026 Saturday | Light freezing rain |
-8.6 ° C (16.5°F) |
-1.7 ° C (28.9°F) |
-4.1 ° C (24.6°F) |
% 85 | 78% | 1 | Sunrise:07:26 AM Sunset: 04:35 PM |
Moonrise:04:51 PM Moonset: 08:01 AM Moon Phase ( Full Moon ) |
|
| 04 January 2026 Sunday | Patchy rain nearby |
0.6 ° C (33.1°F) |
2 ° C (35.6°F) |
1.1 ° C (34°F) |
% 100 | 73% | 1 | Sunrise:07:26 AM Sunset: 04:36 PM |
Moonrise:06:11 PM Moonset: 08:45 AM Moon Phase ( Waning Gibbous ) |
|
| 05 January 2026 Monday | Fog |
0.4 ° C (32.7°F) |
3.5 ° C (38.3°F) |
1.8 ° C (35.2°F) |
% 99 | 0% | 1 | Sunrise:07:26 AM Sunset: 04:37 PM |
Moonrise:07:30 PM Moonset: 09:19 AM Moon Phase ( Waning Gibbous ) |
|
| 06 January 2026 Tuesday | Overcast |
-3.8 ° C (25.1°F) |
1 ° C (33.8°F) |
-0.5 ° C (31.2°F) |
% 86 | 0% | 1 | Sunrise:07:26 AM Sunset: 04:38 PM |
Moonrise:08:43 PM Moonset: 09:45 AM Moon Phase ( Waning Gibbous ) |
|
| 07 January 2026 Wednesday |  Sunny |
-4.2 ° C (24.5°F) |
1.4 ° C (34.6°F) |
-1.8 ° C (28.8°F) |
% 79 | 0% | 2 | Sunrise:07:26 AM Sunset: 04:39 PM |
Moonrise:09:52 PM Moonset: 10:07 AM Moon Phase ( Waning Gibbous ) |
|
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