Centralia Weather Forecast 15 Days, Weather in Centralia Today
Current weather conditions and 15 day weather forecast for Centralia, 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 Centralia
| 17 August 2026 Monday 23.6 ° C / 74.5°F  Overcast |
Feels Like : 22.4 ° C / 72.3°F Humidity : % 88 Pressure : 1027 mb Wind Speed : 29.2 kmph / 18.1 miles from NW  Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 99 |
15 day weather forecast for Centralia, IL, USA
Weather Forecast for next 15 Days for Centralia 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 Centralia, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 17 August 2026 Monday | Overcast |
12.2 ° C (53.9°F) |
32 ° C (89.6°F) |
20.9 ° C (69.6°F) |
% 81 | 18% | 8.8 | Sunrise:06:12 AM Sunset: 07:48 PM |
Moonrise:11:43 AM Moonset: 10:14 PM Moon Phase ( Waxing Crescent ) |
|
| 18 August 2026 Tuesday | Overcast |
12.4 ° C (54.3°F) |
13.4 ° C (56.1°F) |
12.9 ° C (55.1°F) |
% 88 | 52% | 8.9 | Sunrise:06:13 AM Sunset: 07:47 PM |
Moonrise:12:52 PM Moonset: 10:46 PM Moon Phase ( First Quarter ) |
|
| 19 August 2026 Wednesday | Overcast |
11.4 ° C (52.4°F) |
13.4 ° C (56.1°F) |
12.1 ° C (53.8°F) |
% 84 | 70% | 6 | Sunrise:06:14 AM Sunset: 07:45 PM |
Moonrise:02:00 PM Moonset: 11:23 PM Moon Phase ( First Quarter ) |
|
| 20 August 2026 Thursday | Overcast |
10.6 ° C (51°F) |
12.6 ° C (54.6°F) |
11.2 ° C (52.1°F) |
% 78 | 41% | 6.4 | Sunrise:06:15 AM Sunset: 07:44 PM |
Moonrise:03:03 PM Moonset: Does not set today Moon Phase ( First Quarter ) |
|
| 21 August 2026 Friday |  Patchy rain nearby |
11.8 ° C (53.2°F) |
12.5 ° C (54.4°F) |
12.3 ° C (54.1°F) |
% 88 | 63% | 3 | Sunrise:06:16 AM Sunset: 07:43 PM |
Moonrise:04:01 PM Moonset: 12:07 AM Moon Phase ( First Quarter ) |
|
| 22 August 2026 Saturday |  Light rain shower |
11.8 ° C (53.2°F) |
12.5 ° C (54.5°F) |
12.2 ° C (53.9°F) |
% 92 | 90% | 3 | Sunrise:06:17 AM Sunset: 07:41 PM |
Moonrise:04:52 PM Moonset: 12:57 AM Moon Phase ( Waxing Gibbous ) |
|
| 23 August 2026 Sunday | Patchy rain nearby |
12.2 ° C (54°F) |
13 ° C (55.5°F) |
12.4 ° C (54.4°F) |
% 90 | 71% | 3 | Sunrise:06:18 AM Sunset: 07:40 PM |
Moonrise:05:34 PM Moonset: 01:53 AM Moon Phase ( Waxing Gibbous ) |
|
| 24 August 2026 Monday | Light rain shower |
11.6 ° C (52.9°F) |
12.6 ° C (54.6°F) |
12.2 ° C (53.9°F) |
% 90 | 89% | 3 | Sunrise:06:18 AM Sunset: 07:38 PM |
Moonrise:06:10 PM Moonset: 02:53 AM Moon Phase ( Waxing Gibbous ) |
|
| 25 August 2026 Tuesday | Patchy rain nearby |
10.8 ° C (51.4°F) |
11.5 ° C (52.7°F) |
11.2 ° C (52.1°F) |
% 77 | 80% | 3 | Sunrise:06:19 AM Sunset: 07:37 PM |
Moonrise:06:40 PM Moonset: 03:54 AM Moon Phase ( Full Moon ) |
|
| 26 August 2026 Wednesday | Patchy rain nearby |
10.9 ° C (51.6°F) |
11.2 ° C (52.2°F) |
11.1 ° C (51.9°F) |
% 70 | 36% | 4 | Sunrise:06:20 AM Sunset: 07:36 PM |
Moonrise:07:06 PM Moonset: 04:55 AM Moon Phase ( Full Moon ) |
|
| 27 August 2026 Thursday | Patchy rain nearby |
10.5 ° C (50.9°F) |
11.5 ° C (52.7°F) |
11 ° C (51.8°F) |
% 72 | 68% | 4 | Sunrise:06:21 AM Sunset: 07:34 PM |
Moonrise:07:28 PM Moonset: 05:56 AM Moon Phase ( Full Moon ) |
|
| 28 August 2026 Friday | Overcast |
9.8 ° C (49.6°F) |
10.4 ° C (50.7°F) |
10 ° C (50.1°F) |
% 66 | 17% | 3 | Sunrise:06:22 AM Sunset: 07:33 PM |
Moonrise:07:50 PM Moonset: 06:56 AM Moon Phase ( Full Moon ) |
|
| 29 August 2026 Saturday | Patchy rain nearby |
9 ° C (48.2°F) |
10.7 ° C (51.2°F) |
9.9 ° C (49.8°F) |
% 71 | 78% | 3 | Sunrise:06:23 AM Sunset: 07:31 PM |
Moonrise:08:11 PM Moonset: 07:55 AM Moon Phase ( Waning Gibbous ) |
|
| 30 August 2026 Sunday | Patchy rain nearby |
8.8 ° C (47.9°F) |
9.5 ° C (49°F) |
9.1 ° C (48.4°F) |
% 60 | 41% | 3 | Sunrise:06:24 AM Sunset: 07:30 PM |
Moonrise:08:33 PM Moonset: 08:55 AM Moon Phase ( Waning Gibbous ) |
|
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