Current weather conditions and 15 day weather forecast for Chester, 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.
| 14 May 2026 Thursday 13.9 ° C / 57°F ![]() Clear |
Feels Like : 13.7 ° C / 56.6°F Humidity : % 59 Pressure : 1018 mb Wind Speed : 7.6 kmph / 4.7 miles from NE ![]() Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 14 May 2026 Thursday | Sunny |
10.2 ° C (50.4°F) |
21.4 ° C (70.5°F) |
15.8 ° C (60.5°F) |
% 58 | 0% | 8.5 | Sunrise:05:50 AM Sunset: 08:02 PM |
Moonrise:04:04 AM Moonset: 05:51 PM Moon Phase ( Waning Crescent ) |
|
| 15 May 2026 Friday | Patchy rain nearby |
11.2 ° C (52.2°F) |
25.7 ° C (78.2°F) |
17.9 ° C (64.2°F) |
% 71 | 89% | 0.3 | Sunrise:05:49 AM Sunset: 08:03 PM |
Moonrise:04:35 AM Moonset: 07:09 PM Moon Phase ( Waning Crescent ) |
|
| 16 May 2026 Saturday | Thundery outbreaks in nearby |
18.8 ° C (65.9°F) |
28 ° C (82.4°F) |
22.5 ° C (72.4°F) |
% 77 | 0% | 5 | Sunrise:05:48 AM Sunset: 08:04 PM |
Moonrise:05:13 AM Moonset: 08:28 PM Moon Phase ( New Moon ) |
|
| 17 May 2026 Sunday | Sunny |
17 ° C (62.6°F) |
28.6 ° C (83.5°F) |
22.9 ° C (73.1°F) |
% 71 | 0% | 6 | Sunrise:05:48 AM Sunset: 08:05 PM |
Moonrise:06:00 AM Moonset: 09:46 PM Moon Phase ( Waxing Crescent ) |
|
| 18 May 2026 Monday | Patchy rain nearby |
21.2 ° C (70.1°F) |
29 ° C (84.2°F) |
23.7 ° C (74.7°F) |
% 75 | 81% | 5 | Sunrise:05:47 AM Sunset: 08:05 PM |
Moonrise:06:58 AM Moonset: 10:54 PM Moon Phase ( Waxing Crescent ) |
|
| 19 May 2026 Tuesday | Patchy rain nearby |
16.8 ° C (62.2°F) |
18.7 ° C (65.6°F) |
17.9 ° C (64.2°F) |
% 90 | 89% | 4 | Sunrise:05:46 AM Sunset: 08:06 PM |
Moonrise:08:07 AM Moonset: 11:52 PM Moon Phase ( Waxing Crescent ) |
|
| 20 May 2026 Wednesday | Moderate rain |
16.4 ° C (61.6°F) |
23.3 ° C (73.9°F) |
18.9 ° C (66°F) |
% 92 | 89% | 4 | Sunrise:05:45 AM Sunset: 08:07 PM |
Moonrise:09:22 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 21 May 2026 Thursday | Moderate rain |
15.3 ° C (59.5°F) |
26.4 ° C (79.5°F) |
21 ° C (69.8°F) |
% 91 | 89% | 5 | Sunrise:05:45 AM Sunset: 08:08 PM |
Moonrise:10:37 AM Moonset: 12:36 AM Moon Phase ( Waxing Crescent ) |
|
| 22 May 2026 Friday | Patchy rain nearby |
11.1 ° C (52°F) |
16.3 ° C (61.3°F) |
15.9 ° C (60.6°F) |
% 88 | 83% | 4 | Sunrise:05:44 AM Sunset: 08:09 PM |
Moonrise:11:49 AM Moonset: 01:12 AM Moon Phase ( Waxing Crescent ) |
|
| 23 May 2026 Saturday | Sunny |
10.7 ° C (51.2°F) |
20.2 ° C (68.4°F) |
15.2 ° C (59.4°F) |
% 69 | 0% | 5 | Sunrise:05:43 AM Sunset: 08:09 PM |
Moonrise:12:57 PM Moonset: 01:42 AM Moon Phase ( First Quarter ) |
|
| 24 May 2026 Sunday | Sunny |
9.7 ° C (49.4°F) |
24.2 ° C (75.6°F) |
17.7 ° C (63.8°F) |
% 73 | 0% | 5 | Sunrise:05:43 AM Sunset: 08:10 PM |
Moonrise:02:01 PM Moonset: 02:06 AM Moon Phase ( Waxing Gibbous ) |
|
| 25 May 2026 Monday | Patchy rain nearby |
14.7 ° C (58.5°F) |
28 ° C (82.4°F) |
20.9 ° C (69.6°F) |
% 81 | 84% | 5 | Sunrise:05:42 AM Sunset: 08:11 PM |
Moonrise:03:04 PM Moonset: 02:30 AM Moon Phase ( Waxing Gibbous ) |
|
| 26 May 2026 Tuesday | Patchy rain nearby |
19.8 ° C (67.7°F) |
29.8 ° C (85.7°F) |
24.5 ° C (76.1°F) |
% 83 | 86% | 5 | Sunrise:05:42 AM Sunset: 08:12 PM |
Moonrise:04:05 PM Moonset: 02:52 AM Moon Phase ( Waxing Gibbous ) |
|
| 27 May 2026 Wednesday | Sunny |
20 ° C (68°F) |
30.1 ° C (86.1°F) |
24.4 ° C (75.9°F) |
% 75 | 0% | 6 | Sunrise:05:41 AM Sunset: 08:12 PM |
Moonrise:05:06 PM Moonset: 03:16 AM Moon Phase ( Waxing Gibbous ) |
|