Knox Weather Forecast 15 Days, Weather in Knox Today
Current weather conditions and 15 day weather forecast for Knox, 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 Knox
| 06 December 2025 Saturday 0.7 ° C / 33.3°F  Overcast |
Feels Like : -3.3 ° C / 26.1°F Humidity : % 100 Pressure : 1011 mb Wind Speed : 13.7 kmph / 8.5 miles from WNW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15 day weather forecast for Knox, IL, USA
Weather Forecast for next 15 Days for Knox 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 Knox, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 06 December 2025 Saturday | Overcast |
-4.5 ° C (23.9°F) |
0.1 ° C (32.2°F) |
-1.5 ° C (29.3°F) |
% 93 | 0% | 0.4 | Sunrise:07:12 AM Sunset: 04:33 PM |
Moonrise:06:15 PM Moonset: 09:24 AM Moon Phase ( Waning Gibbous ) |
|
| 07 December 2025 Sunday |  Moderate or heavy snow showers |
-10.1 ° C (13.8°F) |
0.5 ° C (32.9°F) |
-2.2 ° C (28.1°F) |
% 92 | 81% | 0.4 | Sunrise:07:13 AM Sunset: 04:33 PM |
Moonrise:07:33 PM Moonset: 10:15 AM Moon Phase ( Waning Gibbous ) |
|
| 08 December 2025 Monday |  Partly Cloudy |
-13.9 ° C (7°F) |
-3.8 ° C (25.2°F) |
-9 ° C (15.7°F) |
% 86 | 0% | 0.4 | Sunrise:07:14 AM Sunset: 04:33 PM |
Moonrise:08:49 PM Moonset: 10:53 AM Moon Phase ( Waning Gibbous ) |
|
| 09 December 2025 Tuesday |  Moderate snow |
-6.2 ° C (20.9°F) |
2.5 ° C (36.4°F) |
-0.2 ° C (31.6°F) |
% 92 | 83% | 0.3 | Sunrise:07:15 AM Sunset: 04:33 PM |
Moonrise:10:01 PM Moonset: 11:24 AM Moon Phase ( Waning Gibbous ) |
|
| 10 December 2025 Wednesday |  Blowing snow |
-7.1 ° C (19.2°F) |
-1.7 ° C (29°F) |
-0.9 ° C (30.4°F) |
% 87 | 78% | 0 | Sunrise:07:16 AM Sunset: 04:33 PM |
Moonrise:11:09 PM Moonset: 11:48 AM Moon Phase ( Waning Gibbous ) |
|
| 11 December 2025 Thursday | Moderate snow |
-8.7 ° C (16.4°F) |
-0.2 ° C (31.6°F) |
-4.4 ° C (24°F) |
% 87 | 78% | 1 | Sunrise:07:17 AM Sunset: 04:33 PM |
Moonrise:No moonrise Moonset: 12:09 PM Moon Phase ( Last Quarter ) |
|
| 12 December 2025 Friday | Partly Cloudy |
-13.6 ° C (7.6°F) |
-8.1 ° C (17.5°F) |
-9 ° C (15.8°F) |
% 87 | 0% | 2 | Sunrise:07:17 AM Sunset: 04:33 PM |
Moonrise:12:13 AM Moonset: 12:29 PM Moon Phase ( Waning Crescent ) |
|
| 13 December 2025 Saturday |  Light freezing rain |
-13.9 ° C (7°F) |
-3.5 ° C (25.7°F) |
-9.2 ° C (15.5°F) |
% 85 | 83% | 1 | Sunrise:07:18 AM Sunset: 04:34 PM |
Moonrise:01:16 AM Moonset: 12:49 PM Moon Phase ( Waning Crescent ) |
|
| 14 December 2025 Sunday | Overcast |
-14.5 ° C (6°F) |
-8.2 ° C (17.3°F) |
-11.3 ° C (11.7°F) |
% 83 | 0% | 1 | Sunrise:07:19 AM Sunset: 04:34 PM |
Moonrise:02:17 AM Moonset: 01:09 PM Moon Phase ( Waning Crescent ) |
|
| 15 December 2025 Monday |  Sunny |
-13.4 ° C (7.9°F) |
-8.9 ° C (16°F) |
-11.1 ° C (12.1°F) |
% 85 | 0% | 2 | Sunrise:07:20 AM Sunset: 04:34 PM |
Moonrise:03:19 AM Moonset: 01:33 PM Moon Phase ( Waning Crescent ) |
|
| 16 December 2025 Tuesday | Sunny |
-16.1 ° C (3°F) |
-10.5 ° C (13.2°F) |
-13.9 ° C (7°F) |
% 84 | 0% | 2 | Sunrise:07:20 AM Sunset: 04:34 PM |
Moonrise:04:22 AM Moonset: 01:59 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday | Partly Cloudy |
-14.5 ° C (5.9°F) |
-6.8 ° C (19.7°F) |
-10.8 ° C (12.6°F) |
% 85 | 0% | 2 | Sunrise:07:21 AM Sunset: 04:35 PM |
Moonrise:05:25 AM Moonset: 02:31 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday | Moderate snow |
-10.2 ° C (13.6°F) |
-5 ° C (23°F) |
-7.1 ° C (19.3°F) |
% 85 | 88% | 1 | Sunrise:07:22 AM Sunset: 04:35 PM |
Moonrise:06:26 AM Moonset: 03:11 PM Moon Phase ( Waning Crescent ) |
|
| 19 December 2025 Friday | Partly Cloudy |
-5.9 ° C (21.4°F) |
-0.8 ° C (30.6°F) |
-3.1 ° C (26.4°F) |
% 88 | 0% | 2 | Sunrise:07:22 AM Sunset: 04:36 PM |
Moonrise:07:25 AM Moonset: 03:59 PM Moon Phase ( New Moon ) |
|
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