Decatur Airport Weather Forecast 15 Days, Weather in DEC Today
Current weather conditions and 15 day weather forecast for Decatur Airport, 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 Decatur Airport
| 25 July 2025 Friday 28.3 ° C / 82.9°F  Partly cloudy |
Feels Like : 34.5 ° C / 94.1°F Humidity : % 70 Pressure : 1019 mb Wind Speed : 9.4 kmph / 5.8 miles from WNW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 50 |
15 day weather forecast for Decatur Airport, IL, USA
Weather Forecast for next 15 Days for Decatur Airport 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 Decatur Airport, Illinois state, US. To see the daily forecast, scroll to the table below.
| Date | |
|---|---|
| 25 July 2025 Friday | |
| Weather forecast | Partly Cloudy |
| Low temperature | 24 ° C (75.2°F) |
| High temperature | 31.5 ° C (88.7°F) |
| Avg. temperature | 27.1 ° C (80.7°F) |
| Humidity | % 87 |
| Chance of rain | 0% |
| UV Index | 2.5 |
| Sun Position | Sunrise:05:49 AM Sunset: 08:15 PM |
| Moon Position | Moonrise:06:29 AM Moonset: 09:11 PM Moon Phase ( Waxing Crescent ) |
| 26 July 2025 Saturday | |
| Weather forecast |  Patchy rain nearby |
| Low temperature | 22.6 ° C (72.7°F) |
| High temperature | 34.3 ° C (93.7°F) |
| Avg. temperature | 28.3 ° C (83°F) |
| Humidity | % 84 |
| Chance of rain | 88% |
| UV Index | 2.6 |
| Sun Position | Sunrise:05:49 AM Sunset: 08:14 PM |
| Moon Position | Moonrise:07:41 AM Moonset: 09:37 PM Moon Phase ( Waxing Crescent ) |
| 27 July 2025 Sunday | |
| Weather forecast |  Heavy rain |
| Low temperature | 24.5 ° C (76.1°F) |
| High temperature | 34.8 ° C (94.6°F) |
| Avg. temperature | 28.6 ° C (83.4°F) |
| Humidity | % 86 |
| Chance of rain | 89% |
| UV Index | 2.6 |
| Sun Position | Sunrise:05:50 AM Sunset: 08:13 PM |
| Moon Position | Moonrise:08:48 AM Moonset: 09:59 PM Moon Phase ( Waxing Crescent ) |
| 28 July 2025 Monday | |
| Weather forecast |  Sunny |
| Low temperature | 23.6 ° C (74.5°F) |
| High temperature | 32.2 ° C (89.9°F) |
| Avg. temperature | 28.1 ° C (82.5°F) |
| Humidity | % 84 |
| Chance of rain | 0% |
| UV Index | 2.6 |
| Sun Position | Sunrise:05:51 AM Sunset: 08:12 PM |
| Moon Position | Moonrise:09:52 AM Moonset: 10:19 PM Moon Phase ( Waxing Crescent ) |
| 29 July 2025 Tuesday | |
| Weather forecast | Sunny |
| Low temperature | 23.9 ° C (75°F) |
| High temperature | 32.9 ° C (91.2°F) |
| Avg. temperature | 28.4 ° C (83.2°F) |
| Humidity | % 83 |
| Chance of rain | 0% |
| UV Index | 0 |
| Sun Position | Sunrise:05:52 AM Sunset: 08:11 PM |
| Moon Position | Moonrise:10:54 AM Moonset: 10:39 PM Moon Phase ( Waxing Crescent ) |
| 30 July 2025 Wednesday | |
| Weather forecast |  Thundery outbreaks in nearby |
| Low temperature | 20.3 ° C (68.5°F) |
| High temperature | 28.8 ° C (83.9°F) |
| Avg. temperature | 25.6 ° C (78°F) |
| Humidity | % 85 |
| Chance of rain | 0% |
| UV Index | 6 |
| Sun Position | Sunrise:05:53 AM Sunset: 08:10 PM |
| Moon Position | Moonrise:11:55 AM Moonset: 11:00 PM Moon Phase ( Waxing Crescent ) |
| 31 July 2025 Thursday | |
| Weather forecast | Partly Cloudy |
| Low temperature | 17 ° C (62.5°F) |
| High temperature | 24.9 ° C (76.8°F) |
| Avg. temperature | 21.2 ° C (70.2°F) |
| Humidity | % 74 |
| Chance of rain | 0% |
| UV Index | 6 |
| Sun Position | Sunrise:05:54 AM Sunset: 08:09 PM |
| Moon Position | Moonrise:12:56 PM Moonset: 11:23 PM Moon Phase ( Waxing Crescent ) |
| 01 August 2025 Friday | |
| Weather forecast | Partly Cloudy |
| Low temperature | 18 ° C (64.4°F) |
| High temperature | 24.2 ° C (75.5°F) |
| Avg. temperature | 21.6 ° C (70.8°F) |
| Humidity | % 76 |
| Chance of rain | 0% |
| UV Index | 6 |
| Sun Position | Sunrise:05:55 AM Sunset: 08:08 PM |
| Moon Position | Moonrise:01:58 PM Moonset: 11:50 PM Moon Phase ( First Quarter ) |
| 02 August 2025 Saturday | |
| Weather forecast | Partly Cloudy |
| Low temperature | 18.3 ° C (64.9°F) |
| High temperature | 26.7 ° C (80°F) |
| Avg. temperature | 22.4 ° C (72.4°F) |
| Humidity | % 80 |
| Chance of rain | 0% |
| UV Index | 6 |
| Sun Position | Sunrise:05:56 AM Sunset: 08:07 PM |
| Moon Position | Moonrise:03:01 PM Moonset: No moonset Moon Phase ( Waxing Gibbous ) |
| 03 August 2025 Sunday | |
| Weather forecast | Patchy rain nearby |
| Low temperature | 20.6 ° C (69°F) |
| High temperature | 28.1 ° C (82.6°F) |
| Avg. temperature | 24.2 ° C (75.5°F) |
| Humidity | % 89 |
| Chance of rain | 82% |
| UV Index | 5 |
| Sun Position | Sunrise:05:57 AM Sunset: 08:06 PM |
| Moon Position | Moonrise:04:03 PM Moonset: 12:21 AM Moon Phase ( Waxing Gibbous ) |
| 04 August 2025 Monday | |
| Weather forecast | Patchy rain nearby |
| Low temperature | 22.3 ° C (72.1°F) |
| High temperature | 30.8 ° C (87.4°F) |
| Avg. temperature | 26.2 ° C (79.1°F) |
| Humidity | % 85 |
| Chance of rain | 87% |
| UV Index | 6 |
| Sun Position | Sunrise:05:57 AM Sunset: 08:05 PM |
| Moon Position | Moonrise:05:04 PM Moonset: 12:59 AM Moon Phase ( Waxing Gibbous ) |
| 05 August 2025 Tuesday | |
| Weather forecast |  Mist |
| Low temperature | 23.7 ° C (74.7°F) |
| High temperature | 32.6 ° C (90.7°F) |
| Avg. temperature | 27.7 ° C (81.9°F) |
| Humidity | % 87 |
| Chance of rain | 0% |
| UV Index | 6 |
| Sun Position | Sunrise:05:58 AM Sunset: 08:04 PM |
| Moon Position | Moonrise:05:59 PM Moonset: 01:47 AM Moon Phase ( Waxing Gibbous ) |
| 06 August 2025 Wednesday | |
| Weather forecast | Sunny |
| Low temperature | 25.9 ° C (78.6°F) |
| High temperature | 34.2 ° C (93.5°F) |
| Avg. temperature | 29.7 ° C (85.5°F) |
| Humidity | % 79 |
| Chance of rain | 0% |
| UV Index | 7 |
| Sun Position | Sunrise:05:59 AM Sunset: 08:03 PM |
| Moon Position | Moonrise:06:47 PM Moonset: 02:43 AM Moon Phase ( Waxing Gibbous ) |
| 07 August 2025 Thursday | |
| Weather forecast | Sunny |
| Low temperature | 25.5 ° C (77.9°F) |
| High temperature | 34.5 ° C (94.1°F) |
| Avg. temperature | 29.7 ° C (85.5°F) |
| Humidity | % 79 |
| Chance of rain | 0% |
| UV Index | 7 |
| Sun Position | Sunrise:06:00 AM Sunset: 08:02 PM |
| Moon Position | Moonrise:07:27 PM Moonset: 03:47 AM Moon Phase ( Waxing Gibbous ) |
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 25 July 2025 Friday | Partly Cloudy |
24 ° C (75.2°F) |
31.5 ° C (88.7°F) |
27.1 ° C (80.7°F) |
% 87 | 0% | 2.5 | Sunrise:05:49 AM Sunset: 08:15 PM |
Moonrise:06:29 AM Moonset: 09:11 PM Moon Phase ( Waxing Crescent ) |
|
| 26 July 2025 Saturday | Patchy rain nearby |
22.6 ° C (72.7°F) |
34.3 ° C (93.7°F) |
28.3 ° C (83°F) |
% 84 | 88% | 2.6 | Sunrise:05:49 AM Sunset: 08:14 PM |
Moonrise:07:41 AM Moonset: 09:37 PM Moon Phase ( Waxing Crescent ) |
|
| 27 July 2025 Sunday | Heavy rain |
24.5 ° C (76.1°F) |
34.8 ° C (94.6°F) |
28.6 ° C (83.4°F) |
% 86 | 89% | 2.6 | Sunrise:05:50 AM Sunset: 08:13 PM |
Moonrise:08:48 AM Moonset: 09:59 PM Moon Phase ( Waxing Crescent ) |
|
| 28 July 2025 Monday | Sunny |
23.6 ° C (74.5°F) |
32.2 ° C (89.9°F) |
28.1 ° C (82.5°F) |
% 84 | 0% | 2.6 | Sunrise:05:51 AM Sunset: 08:12 PM |
Moonrise:09:52 AM Moonset: 10:19 PM Moon Phase ( Waxing Crescent ) |
|
| 29 July 2025 Tuesday | Sunny |
23.9 ° C (75°F) |
32.9 ° C (91.2°F) |
28.4 ° C (83.2°F) |
% 83 | 0% | 0 | Sunrise:05:52 AM Sunset: 08:11 PM |
Moonrise:10:54 AM Moonset: 10:39 PM Moon Phase ( Waxing Crescent ) |
|
| 30 July 2025 Wednesday | Thundery outbreaks in nearby |
20.3 ° C (68.5°F) |
28.8 ° C (83.9°F) |
25.6 ° C (78°F) |
% 85 | 0% | 6 | Sunrise:05:53 AM Sunset: 08:10 PM |
Moonrise:11:55 AM Moonset: 11:00 PM Moon Phase ( Waxing Crescent ) |
|
| 31 July 2025 Thursday | Partly Cloudy |
17 ° C (62.5°F) |
24.9 ° C (76.8°F) |
21.2 ° C (70.2°F) |
% 74 | 0% | 6 | Sunrise:05:54 AM Sunset: 08:09 PM |
Moonrise:12:56 PM Moonset: 11:23 PM Moon Phase ( Waxing Crescent ) |
|
| 01 August 2025 Friday | Partly Cloudy |
18 ° C (64.4°F) |
24.2 ° C (75.5°F) |
21.6 ° C (70.8°F) |
% 76 | 0% | 6 | Sunrise:05:55 AM Sunset: 08:08 PM |
Moonrise:01:58 PM Moonset: 11:50 PM Moon Phase ( First Quarter ) |
|
| 02 August 2025 Saturday | Partly Cloudy |
18.3 ° C (64.9°F) |
26.7 ° C (80°F) |
22.4 ° C (72.4°F) |
% 80 | 0% | 6 | Sunrise:05:56 AM Sunset: 08:07 PM |
Moonrise:03:01 PM Moonset: No moonset Moon Phase ( Waxing Gibbous ) |
|
| 03 August 2025 Sunday | Patchy rain nearby |
20.6 ° C (69°F) |
28.1 ° C (82.6°F) |
24.2 ° C (75.5°F) |
% 89 | 82% | 5 | Sunrise:05:57 AM Sunset: 08:06 PM |
Moonrise:04:03 PM Moonset: 12:21 AM Moon Phase ( Waxing Gibbous ) |
|
| 04 August 2025 Monday | Patchy rain nearby |
22.3 ° C (72.1°F) |
30.8 ° C (87.4°F) |
26.2 ° C (79.1°F) |
% 85 | 87% | 6 | Sunrise:05:57 AM Sunset: 08:05 PM |
Moonrise:05:04 PM Moonset: 12:59 AM Moon Phase ( Waxing Gibbous ) |
|
| 05 August 2025 Tuesday | Mist |
23.7 ° C (74.7°F) |
32.6 ° C (90.7°F) |
27.7 ° C (81.9°F) |
% 87 | 0% | 6 | Sunrise:05:58 AM Sunset: 08:04 PM |
Moonrise:05:59 PM Moonset: 01:47 AM Moon Phase ( Waxing Gibbous ) |
|
| 06 August 2025 Wednesday | Sunny |
25.9 ° C (78.6°F) |
34.2 ° C (93.5°F) |
29.7 ° C (85.5°F) |
% 79 | 0% | 7 | Sunrise:05:59 AM Sunset: 08:03 PM |
Moonrise:06:47 PM Moonset: 02:43 AM Moon Phase ( Waxing Gibbous ) |
|
| 07 August 2025 Thursday | Sunny |
25.5 ° C (77.9°F) |
34.5 ° C (94.1°F) |
29.7 ° C (85.5°F) |
% 79 | 0% | 7 | Sunrise:06:00 AM Sunset: 08:02 PM |
Moonrise:07:27 PM Moonset: 03:47 AM Moon Phase ( Waxing Gibbous ) |
|
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