St. Clair Weather Forecast 15 Days, Weather in St. Clair Today
Current weather conditions and 15 day weather forecast for St. Clair, 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 St. Clair
| 03 April 2025 Thursday 15 ° C / 59°F  Partly cloudy |
Feels Like : 13.6 ° C / 56.5°F Humidity : % 63 Pressure : 1018 mb Wind Speed : 20.9 kmph / 13 miles from NNW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 25 |
15 day weather forecast for St. Clair, IL, USA
Weather Forecast for next 15 Days for St. Clair 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 St. Clair, Illinois state, US. To see the daily forecast, scroll to the table below.
| Date | |
|---|---|
| 03 April 2025 Thursday | |
| Weather forecast |  Patchy rain nearby |
| Low temperature | 7.4 ° C (45.3°F) |
| High temperature | 14 ° C (57.2°F) |
| Avg. temperature | 12.5 ° C (54.5°F) |
| Humidity | % 84 |
| Chance of rain | 66% |
| UV Index | 0.9 |
| Sun Position | Sunrise:06:42 AM Sunset: 07:26 PM |
| Moon Position | Moonrise:10:09 AM Moonset: 01:09 AM Moon Phase ( Waxing Crescent ) |
| 04 April 2025 Friday | |
| Weather forecast |  Heavy rain |
| Low temperature | 7.5 ° C (45.5°F) |
| High temperature | 12.2 ° C (54°F) |
| Avg. temperature | 10 ° C (50.1°F) |
| Humidity | % 96 |
| Chance of rain | 87% |
| UV Index | 0.2 |
| Sun Position | Sunrise:06:40 AM Sunset: 07:27 PM |
| Moon Position | Moonrise:11:12 AM Moonset: 02:12 AM Moon Phase ( Waxing Crescent ) |
| 05 April 2025 Saturday | |
| Weather forecast | Heavy rain |
| Low temperature | 8.3 ° C (46.9°F) |
| High temperature | 10.3 ° C (50.5°F) |
| Avg. temperature | 10.1 ° C (50.2°F) |
| Humidity | % 97 |
| Chance of rain | 85% |
| UV Index | 0.1 |
| Sun Position | Sunrise:06:38 AM Sunset: 07:28 PM |
| Moon Position | Moonrise:12:20 PM Moonset: 03:04 AM Moon Phase ( First Quarter ) |
| 06 April 2025 Sunday | |
| Weather forecast | Heavy rain |
| Low temperature | 2.4 ° C (36.3°F) |
| High temperature | 5 ° C (41°F) |
| Avg. temperature | 4.2 ° C (39.5°F) |
| Humidity | % 89 |
| Chance of rain | 86% |
| UV Index | 0.5 |
| Sun Position | Sunrise:06:37 AM Sunset: 07:29 PM |
| Moon Position | Moonrise:01:28 PM Moonset: 03:45 AM Moon Phase ( Waxing Gibbous ) |
| 07 April 2025 Monday | |
| Weather forecast | Patchy rain nearby |
| Low temperature | 0.7 ° C (33.3°F) |
| High temperature | 13.5 ° C (56.3°F) |
| Avg. temperature | 6.4 ° C (43.4°F) |
| Humidity | % 75 |
| Chance of rain | 82% |
| UV Index | 0 |
| Sun Position | Sunrise:06:35 AM Sunset: 07:30 PM |
| Moon Position | Moonrise:02:34 PM Moonset: 04:17 AM Moon Phase ( Waxing Gibbous ) |
| 08 April 2025 Tuesday | |
| Weather forecast | Partly Cloudy |
| Low temperature | -0.3 ° C (31.4°F) |
| High temperature | 11 ° C (51.8°F) |
| Avg. temperature | 5.9 ° C (42.7°F) |
| Humidity | % 61 |
| Chance of rain | 0% |
| UV Index | 3 |
| Sun Position | Sunrise:06:34 AM Sunset: 07:31 PM |
| Moon Position | Moonrise:03:37 PM Moonset: 04:44 AM Moon Phase ( Waxing Gibbous ) |
| 09 April 2025 Wednesday | |
| Weather forecast | Patchy rain nearby |
| Low temperature | 3.6 ° C (38.5°F) |
| High temperature | 10.7 ° C (51.2°F) |
| Avg. temperature | 6.9 ° C (44.3°F) |
| Humidity | % 87 |
| Chance of rain | 87% |
| UV Index | 2 |
| Sun Position | Sunrise:06:32 AM Sunset: 07:32 PM |
| Moon Position | Moonrise:04:38 PM Moonset: 05:07 AM Moon Phase ( Waxing Gibbous ) |
| 10 April 2025 Thursday | |
| Weather forecast | Patchy rain nearby |
| Low temperature | 2.8 ° C (37°F) |
| High temperature | 16.7 ° C (62.1°F) |
| Avg. temperature | 9.2 ° C (48.6°F) |
| Humidity | % 77 |
| Chance of rain | 78% |
| UV Index | 2 |
| Sun Position | Sunrise:06:31 AM Sunset: 07:33 PM |
| Moon Position | Moonrise:05:37 PM Moonset: 05:29 AM Moon Phase ( Waxing Gibbous ) |
| 11 April 2025 Friday | |
| Weather forecast |  Sunny |
| Low temperature | 8.9 ° C (47.9°F) |
| High temperature | 17.2 ° C (62.9°F) |
| Avg. temperature | 12.5 ° C (54.5°F) |
| Humidity | % 70 |
| Chance of rain | 0% |
| UV Index | 4 |
| Sun Position | Sunrise:06:29 AM Sunset: 07:34 PM |
| Moon Position | Moonrise:06:36 PM Moonset: 05:49 AM Moon Phase ( Waxing Gibbous ) |
| 12 April 2025 Saturday | |
| Weather forecast |  Overcast |
| Low temperature | 4.7 ° C (40.4°F) |
| High temperature | 9.1 ° C (48.4°F) |
| Avg. temperature | 7.3 ° C (45.2°F) |
| Humidity | % 72 |
| Chance of rain | 0% |
| UV Index | 2 |
| Sun Position | Sunrise:06:28 AM Sunset: 07:35 PM |
| Moon Position | Moonrise:07:35 PM Moonset: 06:09 AM Moon Phase ( Waxing Gibbous ) |
| 13 April 2025 Sunday | |
| Weather forecast | Sunny |
| Low temperature | 3.8 ° C (38.8°F) |
| High temperature | 15.2 ° C (59.3°F) |
| Avg. temperature | 9 ° C (48.3°F) |
| Humidity | % 66 |
| Chance of rain | 0% |
| UV Index | 3 |
| Sun Position | Sunrise:06:27 AM Sunset: 07:36 PM |
| Moon Position | Moonrise:08:35 PM Moonset: 06:30 AM Moon Phase ( Full Moon ) |
| 14 April 2025 Monday | |
| Weather forecast | Partly Cloudy |
| Low temperature | 6.6 ° C (44°F) |
| High temperature | 13.6 ° C (56.6°F) |
| Avg. temperature | 10.4 ° C (50.7°F) |
| Humidity | % 75 |
| Chance of rain | 0% |
| UV Index | 4 |
| Sun Position | Sunrise:06:25 AM Sunset: 07:37 PM |
| Moon Position | Moonrise:09:36 PM Moonset: 06:55 AM Moon Phase ( Waning Gibbous ) |
| 15 April 2025 Tuesday | |
| Weather forecast | Partly Cloudy |
| Low temperature | 5.9 ° C (42.6°F) |
| High temperature | 16.9 ° C (62.4°F) |
| Avg. temperature | 11.1 ° C (52°F) |
| Humidity | % 78 |
| Chance of rain | 0% |
| UV Index | 4 |
| Sun Position | Sunrise:06:24 AM Sunset: 07:38 PM |
| Moon Position | Moonrise:10:38 PM Moonset: 07:24 AM Moon Phase ( Waning Gibbous ) |
| 16 April 2025 Wednesday | |
| Weather forecast | Partly Cloudy |
| Low temperature | 11.5 ° C (52.7°F) |
| High temperature | 26.4 ° C (79.5°F) |
| Avg. temperature | 18.3 ° C (65°F) |
| Humidity | % 80 |
| Chance of rain | 0% |
| UV Index | 5 |
| Sun Position | Sunrise:06:22 AM Sunset: 07:39 PM |
| Moon Position | Moonrise:11:40 PM Moonset: 07:58 AM Moon Phase ( Waning Gibbous ) |
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 03 April 2025 Thursday | Patchy rain nearby |
7.4 ° C (45.3°F) |
14 ° C (57.2°F) |
12.5 ° C (54.5°F) |
% 84 | 66% | 0.9 | Sunrise:06:42 AM Sunset: 07:26 PM |
Moonrise:10:09 AM Moonset: 01:09 AM Moon Phase ( Waxing Crescent ) |
|
| 04 April 2025 Friday | Heavy rain |
7.5 ° C (45.5°F) |
12.2 ° C (54°F) |
10 ° C (50.1°F) |
% 96 | 87% | 0.2 | Sunrise:06:40 AM Sunset: 07:27 PM |
Moonrise:11:12 AM Moonset: 02:12 AM Moon Phase ( Waxing Crescent ) |
|
| 05 April 2025 Saturday | Heavy rain |
8.3 ° C (46.9°F) |
10.3 ° C (50.5°F) |
10.1 ° C (50.2°F) |
% 97 | 85% | 0.1 | Sunrise:06:38 AM Sunset: 07:28 PM |
Moonrise:12:20 PM Moonset: 03:04 AM Moon Phase ( First Quarter ) |
|
| 06 April 2025 Sunday | Heavy rain |
2.4 ° C (36.3°F) |
5 ° C (41°F) |
4.2 ° C (39.5°F) |
% 89 | 86% | 0.5 | Sunrise:06:37 AM Sunset: 07:29 PM |
Moonrise:01:28 PM Moonset: 03:45 AM Moon Phase ( Waxing Gibbous ) |
|
| 07 April 2025 Monday | Patchy rain nearby |
0.7 ° C (33.3°F) |
13.5 ° C (56.3°F) |
6.4 ° C (43.4°F) |
% 75 | 82% | 0 | Sunrise:06:35 AM Sunset: 07:30 PM |
Moonrise:02:34 PM Moonset: 04:17 AM Moon Phase ( Waxing Gibbous ) |
|
| 08 April 2025 Tuesday | Partly Cloudy |
-0.3 ° C (31.4°F) |
11 ° C (51.8°F) |
5.9 ° C (42.7°F) |
% 61 | 0% | 3 | Sunrise:06:34 AM Sunset: 07:31 PM |
Moonrise:03:37 PM Moonset: 04:44 AM Moon Phase ( Waxing Gibbous ) |
|
| 09 April 2025 Wednesday | Patchy rain nearby |
3.6 ° C (38.5°F) |
10.7 ° C (51.2°F) |
6.9 ° C (44.3°F) |
% 87 | 87% | 2 | Sunrise:06:32 AM Sunset: 07:32 PM |
Moonrise:04:38 PM Moonset: 05:07 AM Moon Phase ( Waxing Gibbous ) |
|
| 10 April 2025 Thursday | Patchy rain nearby |
2.8 ° C (37°F) |
16.7 ° C (62.1°F) |
9.2 ° C (48.6°F) |
% 77 | 78% | 2 | Sunrise:06:31 AM Sunset: 07:33 PM |
Moonrise:05:37 PM Moonset: 05:29 AM Moon Phase ( Waxing Gibbous ) |
|
| 11 April 2025 Friday | Sunny |
8.9 ° C (47.9°F) |
17.2 ° C (62.9°F) |
12.5 ° C (54.5°F) |
% 70 | 0% | 4 | Sunrise:06:29 AM Sunset: 07:34 PM |
Moonrise:06:36 PM Moonset: 05:49 AM Moon Phase ( Waxing Gibbous ) |
|
| 12 April 2025 Saturday | Overcast |
4.7 ° C (40.4°F) |
9.1 ° C (48.4°F) |
7.3 ° C (45.2°F) |
% 72 | 0% | 2 | Sunrise:06:28 AM Sunset: 07:35 PM |
Moonrise:07:35 PM Moonset: 06:09 AM Moon Phase ( Waxing Gibbous ) |
|
| 13 April 2025 Sunday | Sunny |
3.8 ° C (38.8°F) |
15.2 ° C (59.3°F) |
9 ° C (48.3°F) |
% 66 | 0% | 3 | Sunrise:06:27 AM Sunset: 07:36 PM |
Moonrise:08:35 PM Moonset: 06:30 AM Moon Phase ( Full Moon ) |
|
| 14 April 2025 Monday | Partly Cloudy |
6.6 ° C (44°F) |
13.6 ° C (56.6°F) |
10.4 ° C (50.7°F) |
% 75 | 0% | 4 | Sunrise:06:25 AM Sunset: 07:37 PM |
Moonrise:09:36 PM Moonset: 06:55 AM Moon Phase ( Waning Gibbous ) |
|
| 15 April 2025 Tuesday | Partly Cloudy |
5.9 ° C (42.6°F) |
16.9 ° C (62.4°F) |
11.1 ° C (52°F) |
% 78 | 0% | 4 | Sunrise:06:24 AM Sunset: 07:38 PM |
Moonrise:10:38 PM Moonset: 07:24 AM Moon Phase ( Waning Gibbous ) |
|
| 16 April 2025 Wednesday | Partly Cloudy |
11.5 ° C (52.7°F) |
26.4 ° C (79.5°F) |
18.3 ° C (65°F) |
% 80 | 0% | 5 | Sunrise:06:22 AM Sunset: 07:39 PM |
Moonrise:11:40 PM Moonset: 07:58 AM Moon Phase ( Waning Gibbous ) |
|
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