Knoxville Weather Forecast 15 Days, Weather in Knoxville Today
Current weather conditions and 15 day weather forecast for Knoxville, 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 Knoxville
| 01 October 2026 Thursday 18.4 ° C / 65.2°F  Light rain shower |
Feels Like : 19.4 ° C / 66.9°F Humidity : % 96 Pressure : 1010 mb Wind Speed : 9 kmph / 5.6 miles from SSW  Visibility : 10 km Precipitation (rainfall) : 1.26 mm Cloud (%) : 100 |
15 day weather forecast for Knoxville, IL, USA
Weather Forecast for next 15 Days for Knoxville 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 Knoxville, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 01 October 2026 Thursday | Light rain shower |
14.7 ° C (58.4°F) |
19.6 ° C (67.3°F) |
17.7 ° C (63.9°F) |
% 93 | 93% | 0.9 | Sunrise:06:57 AM Sunset: 06:43 PM |
Moonrise:09:22 PM Moonset: 12:31 PM Moon Phase ( Last Quarter ) |
|
| 02 October 2026 Friday |  Sunny |
11.6 ° C (52.8°F) |
17.2 ° C (62.9°F) |
14.2 ° C (57.6°F) |
% 65 | 8% | 5.5 | Sunrise:06:58 AM Sunset: 06:42 PM |
Moonrise:10:20 PM Moonset: 01:36 PM Moon Phase ( Last Quarter ) |
|
| 03 October 2026 Saturday | Sunny |
9.6 ° C (49.2°F) |
19.8 ° C (67.7°F) |
14.4 ° C (57.8°F) |
% 64 | 5% | 5.5 | Sunrise:06:59 AM Sunset: 06:40 PM |
Moonrise:11:29 PM Moonset: 02:33 PM Moon Phase ( Last Quarter ) |
|
| 04 October 2026 Sunday | Sunny |
11.6 ° C (53°F) |
19.6 ° C (67.3°F) |
15.2 ° C (59.3°F) |
% 69 | 10% | 5 | Sunrise:07:00 AM Sunset: 06:38 PM |
Moonrise:Does not rise today Moonset: 03:20 PM Moon Phase ( Last Quarter ) |
|
| 05 October 2026 Monday | Sunny |
7.2 ° C (45°F) |
14.6 ° C (58.3°F) |
11 ° C (51.9°F) |
% 61 | 4% | 4 | Sunrise:07:01 AM Sunset: 06:37 PM |
Moonrise:12:44 AM Moonset: 03:58 PM Moon Phase ( Waning Crescent ) |
|
| 06 October 2026 Tuesday | Sunny |
5.6 ° C (42.1°F) |
16.6 ° C (61.8°F) |
10.9 ° C (51.6°F) |
% 56 | 6% | 4 | Sunrise:07:03 AM Sunset: 06:35 PM |
Moonrise:02:01 AM Moonset: 04:29 PM Moon Phase ( Waning Crescent ) |
|
| 07 October 2026 Wednesday | Sunny |
11.5 ° C (52.8°F) |
20.9 ° C (69.6°F) |
15.3 ° C (59.5°F) |
% 53 | 6% | 6 | Sunrise:07:04 AM Sunset: 06:33 PM |
Moonrise:03:19 AM Moonset: 04:56 PM Moon Phase ( Waning Crescent ) |
|
| 08 October 2026 Thursday |  Overcast |
11.2 ° C (52.1°F) |
20.1 ° C (68.2°F) |
15.7 ° C (60.3°F) |
% 51 | 6% | 5 | Sunrise:07:05 AM Sunset: 06:32 PM |
Moonrise:04:35 AM Moonset: 05:21 PM Moon Phase ( Waning Crescent ) |
|
| 09 October 2026 Friday |  Patchy rain nearby |
5.5 ° C (41.9°F) |
12.8 ° C (55°F) |
9.2 ° C (48.6°F) |
% 72 | 21% | 4 | Sunrise:07:06 AM Sunset: 06:30 PM |
Moonrise:05:50 AM Moonset: 05:46 PM Moon Phase ( New Moon ) |
|
| 10 October 2026 Saturday | Sunny |
1.1 ° C (33.9°F) |
9.1 ° C (48.4°F) |
5.3 ° C (41.6°F) |
% 63 | 5% | 3 | Sunrise:07:07 AM Sunset: 06:29 PM |
Moonrise:07:04 AM Moonset: 06:11 PM Moon Phase ( New Moon ) |
|
| 11 October 2026 Sunday | Sunny |
3.1 ° C (37.6°F) |
15 ° C (59°F) |
8.8 ° C (47.9°F) |
% 55 | 4% | 4 | Sunrise:07:08 AM Sunset: 06:27 PM |
Moonrise:08:19 AM Moonset: 06:39 PM Moon Phase ( New Moon ) |
|
| 12 October 2026 Monday | Overcast |
9.5 ° C (49°F) |
18.9 ° C (66°F) |
14 ° C (57.2°F) |
% 49 | 8% | 4 | Sunrise:07:09 AM Sunset: 06:25 PM |
Moonrise:09:33 AM Moonset: 07:11 PM Moon Phase ( Waxing Crescent ) |
|
| 13 October 2026 Tuesday | Overcast |
7.2 ° C (45°F) |
15.7 ° C (60.3°F) |
10.5 ° C (51°F) |
% 77 | 66% | 3 | Sunrise:07:10 AM Sunset: 06:24 PM |
Moonrise:10:45 AM Moonset: 07:50 PM Moon Phase ( Waxing Crescent ) |
|
| 14 October 2026 Wednesday | Overcast |
4.9 ° C (40.9°F) |
13 ° C (55.4°F) |
8.5 ° C (47.3°F) |
% 73 | 13% | 4 | Sunrise:07:11 AM Sunset: 06:22 PM |
Moonrise:11:51 AM Moonset: 08:36 PM Moon Phase ( Waxing Crescent ) |
|
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