May Weather Forecast 15 Days, Weather in May Today
Current weather conditions and 15 day weather forecast for May, 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 May
| 10 November 2026 Tuesday 17 ° C / 62.5°F  Sunny |
Feels Like : 14.9 ° C / 58.8°F Humidity : % 55 Pressure : 1018 mb Wind Speed : 8.3 kmph / 5.1 miles from WNW  Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for May, IL, USA
Weather Forecast for next 15 Days for May 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 May, 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 November 2026 Tuesday | Sunny |
9.7 ° C (49.4°F) |
19.3 ° C (66.7°F) |
13.5 ° C (56.4°F) |
% 66 | 5% | 2.9 | Sunrise:06:35 AM Sunset: 04:46 PM |
Moonrise:08:23 AM Moonset: 05:28 PM Moon Phase ( New Moon ) |
|
| 11 November 2026 Wednesday |  Partly Cloudy |
9 ° C (48.2°F) |
18.1 ° C (64.6°F) |
12.6 ° C (54.7°F) |
% 74 | 57% | 2.5 | Sunrise:06:36 AM Sunset: 04:45 PM |
Moonrise:09:26 AM Moonset: 06:19 PM Moon Phase ( Waxing Crescent ) |
|
| 12 November 2026 Thursday | Partly Cloudy |
2.6 ° C (36.7°F) |
9.1 ° C (48.3°F) |
6.7 ° C (44°F) |
% 64 | 17% | 0.9 | Sunrise:06:37 AM Sunset: 04:44 PM |
Moonrise:10:20 AM Moonset: 07:16 PM Moon Phase ( Waxing Crescent ) |
|
| 13 November 2026 Friday | Sunny |
0.7 ° C (33.2°F) |
5.5 ° C (42°F) |
2.7 ° C (36.8°F) |
% 62 | 7% | 2 | Sunrise:06:38 AM Sunset: 04:43 PM |
Moonrise:11:05 AM Moonset: 08:17 PM Moon Phase ( Waxing Crescent ) |
|
| 14 November 2026 Saturday | Sunny |
-1.9 ° C (28.6°F) |
7.5 ° C (45.5°F) |
2.5 ° C (36.5°F) |
% 65 | 6% | 3 | Sunrise:06:39 AM Sunset: 04:42 PM |
Moonrise:11:42 AM Moonset: 09:20 PM Moon Phase ( First Quarter ) |
|
| 15 November 2026 Sunday | Partly Cloudy |
-0.3 ° C (31.5°F) |
9.8 ° C (49.6°F) |
4.3 ° C (39.7°F) |
% 63 | 7% | 3 | Sunrise:06:41 AM Sunset: 04:41 PM |
Moonrise:12:13 PM Moonset: 10:22 PM Moon Phase ( First Quarter ) |
|
| 16 November 2026 Monday | Partly Cloudy |
1.4 ° C (34.6°F) |
10.9 ° C (51.7°F) |
5.7 ° C (42.3°F) |
% 65 | 7% | 4 | Sunrise:06:42 AM Sunset: 04:41 PM |
Moonrise:12:39 PM Moonset: 11:22 PM Moon Phase ( First Quarter ) |
|
| 17 November 2026 Tuesday | Sunny |
1.9 ° C (35.4°F) |
11.3 ° C (52.3°F) |
6.2 ° C (43.1°F) |
% 66 | 5% | 4 | Sunrise:06:43 AM Sunset: 04:40 PM |
Moonrise:01:01 PM Moonset: Does not set today Moon Phase ( First Quarter ) |
|
| 18 November 2026 Wednesday | Sunny |
2.4 ° C (36.2°F) |
12.2 ° C (53.9°F) |
6.9 ° C (44.5°F) |
% 64 | 5% | 4 | Sunrise:06:44 AM Sunset: 04:39 PM |
Moonrise:01:23 PM Moonset: 12:22 AM Moon Phase ( Waxing Gibbous ) |
|
| 19 November 2026 Thursday |  Overcast |
4.6 ° C (40.3°F) |
13.9 ° C (57.1°F) |
9.2 ° C (48.6°F) |
% 60 | 13% | 3 | Sunrise:06:45 AM Sunset: 04:38 PM |
Moonrise:01:43 PM Moonset: 01:22 AM Moon Phase ( Waxing Gibbous ) |
|
| 20 November 2026 Friday | Overcast |
9.4 ° C (49°F) |
14.1 ° C (57.4°F) |
11.9 ° C (53.5°F) |
% 59 | 40% | 3 | Sunrise:06:46 AM Sunset: 04:38 PM |
Moonrise:02:05 PM Moonset: 02:23 AM Moon Phase ( Waxing Gibbous ) |
|
| 21 November 2026 Saturday |  Light rain |
10.9 ° C (51.7°F) |
13.6 ° C (56.5°F) |
12.1 ° C (53.9°F) |
% 77 | 86% | 3 | Sunrise:06:47 AM Sunset: 04:37 PM |
Moonrise:02:29 PM Moonset: 03:26 AM Moon Phase ( Waxing Gibbous ) |
|
| 22 November 2026 Sunday |  Patchy rain nearby |
11 ° C (51.8°F) |
14 ° C (57.3°F) |
12.4 ° C (54.3°F) |
% 86 | 88% | 3 | Sunrise:06:48 AM Sunset: 04:37 PM |
Moonrise:02:57 PM Moonset: 04:32 AM Moon Phase ( Full Moon ) |
|
| 23 November 2026 Monday | Partly Cloudy |
3.3 ° C (37.9°F) |
10.7 ° C (51.2°F) |
7.2 ° C (45°F) |
% 72 | 12% | 3 | Sunrise:06:49 AM Sunset: 04:36 PM |
Moonrise:03:31 PM Moonset: 05:42 AM Moon Phase ( Full Moon ) |
|
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