Glen Carbon Weather Forecast 15 Days, Weather in Glen Carbon Today
Current weather conditions and 15 day weather forecast for Glen Carbon, 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 Glen Carbon
| 25 December 2025 Thursday 16.3 ° C / 61.3°F  Mist |
Feels Like : 16.3 ° C / 61.3°F Humidity : % 88 Pressure : 1015 mb Wind Speed : 7.9 kmph / 4.9 miles from E  Visibility : 8 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15 day weather forecast for Glen Carbon, IL, USA
Weather Forecast for next 15 Days for Glen Carbon 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 Glen Carbon, 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 |  Fog |
12 ° C (53.6°F) |
16.9 ° C (62.4°F) |
14.5 ° C (58°F) |
% 95 | 0% | 0.3 | Sunrise:07:16 AM Sunset: 04:44 PM |
Moonrise:10:51 AM Moonset: 10:24 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday |  Partly Cloudy |
8.2 ° C (46.8°F) |
15.6 ° C (60.1°F) |
13.5 ° C (56.3°F) |
% 89 | 0% | 0.4 | Sunrise:07:17 AM Sunset: 04:45 PM |
Moonrise:11:15 AM Moonset: 11:31 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday |  Overcast |
5.9 ° C (42.6°F) |
12.6 ° C (54.6°F) |
9.4 ° C (49°F) |
% 93 | 0% | 0.4 | Sunrise:07:17 AM Sunset: 04:46 PM |
Moonrise:11:39 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday |  Moderate rain |
-0.3 ° C (31.5°F) |
18.1 ° C (64.5°F) |
10.9 ° C (51.7°F) |
% 82 | 73% | 0.2 | Sunrise:07:17 AM Sunset: 04:46 PM |
Moonrise:12:04 PM Moonset: 12:38 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday |  Sunny |
-4.9 ° C (23.1°F) |
-0.5 ° C (31.1°F) |
-3.2 ° C (26.3°F) |
% 44 | 0% | 0 | Sunrise:07:18 AM Sunset: 04:47 PM |
Moonrise:12:32 PM Moonset: 01:50 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday | Sunny |
-5.3 ° C (22.5°F) |
4.3 ° C (39.8°F) |
-1 ° C (30.1°F) |
% 36 | 0% | 2 | Sunrise:07:18 AM Sunset: 04:48 PM |
Moonrise:01:08 PM Moonset: 03:06 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday | Partly Cloudy |
0.5 ° C (32.9°F) |
10 ° C (49.9°F) |
4.5 ° C (40.1°F) |
% 57 | 0% | 2 | Sunrise:07:18 AM Sunset: 04:49 PM |
Moonrise:01:52 PM Moonset: 04:24 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 January 2026 Thursday | Sunny |
-0.2 ° C (31.7°F) |
6.9 ° C (44.4°F) |
3.8 ° C (38.9°F) |
% 68 | 0% | 2 | Sunrise:07:18 AM Sunset: 04:49 PM |
Moonrise:02:47 PM Moonset: 05:41 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 January 2026 Friday | Sunny |
-3.7 ° C (25.3°F) |
2.9 ° C (37.3°F) |
-1.2 ° C (29.8°F) |
% 57 | 0% | 2 | Sunrise:07:18 AM Sunset: 04:50 PM |
Moonrise:03:55 PM Moonset: 06:51 AM Moon Phase ( Waxing Gibbous ) |
|
| 03 January 2026 Saturday |  Patchy rain nearby |
-1.6 ° C (29.1°F) |
4.7 ° C (40.5°F) |
2.9 ° C (37.3°F) |
% 64 | 75% | 1 | Sunrise:07:18 AM Sunset: 04:51 PM |
Moonrise:05:10 PM Moonset: 07:50 AM Moon Phase ( Full Moon ) |
|
| 04 January 2026 Sunday | Patchy rain nearby |
11.1 ° C (52°F) |
15.5 ° C (59.8°F) |
13.4 ° C (56.1°F) |
% 92 | 89% | 3 | Sunrise:07:18 AM Sunset: 04:52 PM |
Moonrise:06:27 PM Moonset: 08:36 AM Moon Phase ( Waning Gibbous ) |
|
| 05 January 2026 Monday | Patchy rain nearby |
13.4 ° C (56.1°F) |
18.1 ° C (64.6°F) |
14.9 ° C (58.7°F) |
% 93 | 88% | 3 | Sunrise:07:18 AM Sunset: 04:53 PM |
Moonrise:07:42 PM Moonset: 09:13 AM Moon Phase ( Waning Gibbous ) |
|
| 06 January 2026 Tuesday | Patchy rain nearby |
4 ° C (39.1°F) |
11.4 ° C (52.4°F) |
9.4 ° C (48.9°F) |
% 84 | 0% | 2 | Sunrise:07:18 AM Sunset: 04:54 PM |
Moonrise:08:52 PM Moonset: 09:43 AM Moon Phase ( Waning Gibbous ) |
|
| 07 January 2026 Wednesday | Partly Cloudy |
0.4 ° C (32.7°F) |
6.3 ° C (43.3°F) |
2.9 ° C (37.2°F) |
% 71 | 0% | 2 | Sunrise:07:18 AM Sunset: 04:55 PM |
Moonrise:09:58 PM Moonset: 10:08 AM Moon Phase ( Waning Gibbous ) |
|
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