John L Coppernoll Airport Weather Forecast 15 Days, Weather in 4LL3 Today
Current weather conditions and 15 day weather forecast for John L Coppernoll 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 John L Coppernoll Airport
| 10 May 2026 Sunday 13.8 ° C / 56.8°F  Sunny |
Feels Like : 12.8 ° C / 55.1°F Humidity : % 36 Pressure : 1020 mb Wind Speed : 13 kmph / 8.1 miles from NNW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for John L Coppernoll Airport, IL, USA
Weather Forecast for next 15 Days for John L Coppernoll 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 John L Coppernoll Airport, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 10 May 2026 Sunday | Sunny |
4.4 ° C (39.9°F) |
18.6 ° C (65.5°F) |
13 ° C (55.4°F) |
% 32 | 0% | 7 | Sunrise:05:44 AM Sunset: 08:10 PM |
Moonrise:02:31 AM Moonset: 01:11 PM Moon Phase ( Waning Crescent ) |
|
| 11 May 2026 Monday | Sunny |
3.1 ° C (37.6°F) |
16.5 ° C (61.7°F) |
10.4 ° C (50.8°F) |
% 58 | 0% | 7.2 | Sunrise:05:43 AM Sunset: 08:11 PM |
Moonrise:02:53 AM Moonset: 02:19 PM Moon Phase ( Waning Crescent ) |
|
| 12 May 2026 Tuesday |  Patchy rain nearby |
8.5 ° C (47.2°F) |
21.3 ° C (70.4°F) |
14 ° C (57.2°F) |
% 71 | 78% | 0 | Sunrise:05:42 AM Sunset: 08:12 PM |
Moonrise:03:14 AM Moonset: 03:30 PM Moon Phase ( Waning Crescent ) |
|
| 13 May 2026 Wednesday | Sunny |
7.7 ° C (45.8°F) |
16.7 ° C (62.1°F) |
12.1 ° C (53.8°F) |
% 71 | 0% | 4 | Sunrise:05:41 AM Sunset: 08:13 PM |
Moonrise:03:35 AM Moonset: 04:43 PM Moon Phase ( Waning Crescent ) |
|
| 14 May 2026 Thursday | Sunny |
4.6 ° C (40.3°F) |
19.7 ° C (67.5°F) |
12.7 ° C (54.8°F) |
% 67 | 0% | 4 | Sunrise:05:40 AM Sunset: 08:14 PM |
Moonrise:03:59 AM Moonset: 06:00 PM Moon Phase ( Waning Crescent ) |
|
| 15 May 2026 Friday | Patchy rain nearby |
14.2 ° C (57.6°F) |
26.7 ° C (80°F) |
19.3 ° C (66.8°F) |
% 76 | 57% | 4 | Sunrise:05:39 AM Sunset: 08:15 PM |
Moonrise:04:26 AM Moonset: 07:22 PM Moon Phase ( Waning Crescent ) |
|
| 16 May 2026 Saturday | Patchy rain nearby |
17.9 ° C (64.2°F) |
26.8 ° C (80.2°F) |
21.4 ° C (70.5°F) |
% 79 | 81% | 5 | Sunrise:05:38 AM Sunset: 08:16 PM |
Moonrise:05:00 AM Moonset: 08:45 PM Moon Phase ( New Moon ) |
|
| 17 May 2026 Sunday | Patchy rain nearby |
12.3 ° C (54.1°F) |
17.5 ° C (63.5°F) |
15.2 ° C (59.3°F) |
% 72 | 77% | 4 | Sunrise:05:37 AM Sunset: 08:17 PM |
Moonrise:05:44 AM Moonset: 10:05 PM Moon Phase ( Waxing Crescent ) |
|
| 18 May 2026 Monday | Sunny |
8.7 ° C (47.7°F) |
19.9 ° C (67.9°F) |
14.3 ° C (57.8°F) |
% 69 | 0% | 4 | Sunrise:05:36 AM Sunset: 08:18 PM |
Moonrise:06:40 AM Moonset: 11:14 PM Moon Phase ( Waxing Crescent ) |
|
| 19 May 2026 Tuesday | Patchy rain nearby |
11.3 ° C (52.3°F) |
23.6 ° C (74.4°F) |
17.4 ° C (63.4°F) |
% 82 | 84% | 4 | Sunrise:05:35 AM Sunset: 08:19 PM |
Moonrise:07:50 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 20 May 2026 Wednesday |  Cloudy |
19.3 ° C (66.7°F) |
27.6 ° C (81.7°F) |
23.2 ° C (73.8°F) |
% 84 | 0% | 5 | Sunrise:05:34 AM Sunset: 08:20 PM |
Moonrise:09:07 AM Moonset: 12:09 AM Moon Phase ( Waxing Crescent ) |
|
| 21 May 2026 Thursday |  Moderate rain |
18.4 ° C (65°F) |
28 ° C (82.4°F) |
22.9 ° C (73.2°F) |
% 89 | 87% | 5 | Sunrise:05:33 AM Sunset: 08:21 PM |
Moonrise:10:25 AM Moonset: 12:51 AM Moon Phase ( Waxing Crescent ) |
|
| 22 May 2026 Friday | Patchy rain nearby |
14.4 ° C (57.9°F) |
19 ° C (66.1°F) |
16.8 ° C (62.3°F) |
% 89 | 0% | 4 | Sunrise:05:33 AM Sunset: 08:22 PM |
Moonrise:11:41 AM Moonset: 01:23 AM Moon Phase ( Waxing Crescent ) |
|
| 23 May 2026 Saturday |  Partly Cloudy |
11.8 ° C (53.2°F) |
24 ° C (75.2°F) |
17.4 ° C (63.4°F) |
% 79 | 0% | 5 | Sunrise:05:32 AM Sunset: 08:23 PM |
Moonrise:12:53 PM Moonset: 01:49 AM Moon Phase ( First Quarter ) |
|
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