Greenville Weather Forecast 15 Days, Weather in Greenville Today
Current weather conditions and 15 day weather forecast for Greenville, 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 Greenville
| 23 October 2026 Friday 15.8 ° C / 60.5°F  Sunny |
Feels Like : 13.6 ° C / 56.5°F Humidity : % 64 Pressure : 1026 mb Wind Speed : 10.4 kmph / 6.5 miles from SE  Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 2 |
15 day weather forecast for Greenville, IL, USA
Weather Forecast for next 15 Days for Greenville 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 Greenville, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 23 October 2026 Friday | Sunny |
10.8 ° C (51.4°F) |
21.8 ° C (71.3°F) |
16 ° C (60.7°F) |
% 63 | 6% | 3.6 | Sunrise:07:19 AM Sunset: 06:05 PM |
Moonrise:04:42 PM Moonset: 04:38 AM Moon Phase ( Full Moon ) |
|
| 24 October 2026 Saturday |  Overcast |
12.1 ° C (53.8°F) |
21.7 ° C (71.1°F) |
16 ° C (60.8°F) |
% 57 | 11% | 3.6 | Sunrise:07:21 AM Sunset: 06:04 PM |
Moonrise:05:03 PM Moonset: 05:42 AM Moon Phase ( Full Moon ) |
|
| 25 October 2026 Sunday | Overcast |
11.7 ° C (53.1°F) |
22.4 ° C (72.4°F) |
16.5 ° C (61.7°F) |
% 56 | 11% | 3.5 | Sunrise:07:22 AM Sunset: 06:03 PM |
Moonrise:05:27 PM Moonset: 06:48 AM Moon Phase ( Full Moon ) |
|
| 26 October 2026 Monday | Overcast |
12 ° C (53.7°F) |
20.4 ° C (68.7°F) |
15.6 ° C (60.1°F) |
% 62 | 14% | 2.6 | Sunrise:07:23 AM Sunset: 06:01 PM |
Moonrise:05:55 PM Moonset: 07:57 AM Moon Phase ( Full Moon ) |
|
| 27 October 2026 Tuesday | Overcast |
10.4 ° C (50.7°F) |
17.9 ° C (64.3°F) |
13.7 ° C (56.6°F) |
% 76 | 33% | 5 | Sunrise:07:24 AM Sunset: 06:00 PM |
Moonrise:06:30 PM Moonset: 09:09 AM Moon Phase ( Waning Gibbous ) |
|
| 28 October 2026 Wednesday |  Patchy rain nearby |
11.5 ° C (52.7°F) |
20.5 ° C (69°F) |
15.6 ° C (60.1°F) |
% 70 | 57% | 6 | Sunrise:07:25 AM Sunset: 05:58 PM |
Moonrise:07:14 PM Moonset: 10:21 AM Moon Phase ( Waning Gibbous ) |
|
| 29 October 2026 Thursday | Patchy rain nearby |
7.6 ° C (45.7°F) |
13.7 ° C (56.6°F) |
11.8 ° C (53.2°F) |
% 68 | 60% | 4 | Sunrise:07:26 AM Sunset: 05:57 PM |
Moonrise:08:09 PM Moonset: 11:29 AM Moon Phase ( Waning Gibbous ) |
|
| 30 October 2026 Friday |  Partly Cloudy |
4.6 ° C (40.3°F) |
10.5 ° C (50.9°F) |
7.3 ° C (45.1°F) |
% 71 | 66% | 3 | Sunrise:07:28 AM Sunset: 05:56 PM |
Moonrise:09:16 PM Moonset: 12:29 PM Moon Phase ( Waning Gibbous ) |
|
| 31 October 2026 Saturday | Patchy rain nearby |
5.1 ° C (41.2°F) |
13.3 ° C (56°F) |
9.5 ° C (49.2°F) |
% 74 | 29% | 3 | Sunrise:07:29 AM Sunset: 05:55 PM |
Moonrise:10:29 PM Moonset: 01:18 PM Moon Phase ( Last Quarter ) |
|
| 01 November 2026 Sunday |  Cloudy |
10.1 ° C (50.2°F) |
17.7 ° C (63.9°F) |
13.8 ° C (56.8°F) |
% 74 | 12% | 5 | Sunrise:06:30 AM Sunset: 04:53 PM |
Moonrise:10:45 PM Moonset: 12:58 PM Moon Phase ( Last Quarter ) |
|
| 02 November 2026 Monday | Partly Cloudy |
7 ° C (44.6°F) |
16.1 ° C (61°F) |
11.6 ° C (52.9°F) |
% 76 | 66% | 5 | Sunrise:06:31 AM Sunset: 04:52 PM |
Moonrise:Does not rise today Moonset: 01:30 PM Moon Phase ( Last Quarter ) |
|
| 03 November 2026 Tuesday |  Light rain shower |
11.9 ° C (53.5°F) |
14.4 ° C (57.9°F) |
13.2 ° C (55.8°F) |
% 88 | 92% | 3 | Sunrise:06:32 AM Sunset: 04:51 PM |
Moonrise:12:02 AM Moonset: 01:57 PM Moon Phase ( Waning Crescent ) |
|
| 04 November 2026 Wednesday |  Light drizzle |
10 ° C (50°F) |
16 ° C (60.9°F) |
13.6 ° C (56.5°F) |
% 84 | 78% | 4 | Sunrise:06:34 AM Sunset: 04:50 PM |
Moonrise:01:16 AM Moonset: 02:21 PM Moon Phase ( Waning Crescent ) |
|
| 05 November 2026 Thursday | Partly Cloudy |
8 ° C (46.4°F) |
13.2 ° C (55.8°F) |
10 ° C (50°F) |
% 76 | 57% | 4 | Sunrise:06:35 AM Sunset: 04:48 PM |
Moonrise:02:30 AM Moonset: 02:44 PM Moon Phase ( Waning Crescent ) |
|
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