South Jacksonville Weather Forecast 15 Days, Weather in South Jacksonville Today
Current weather conditions and 15 day weather forecast for South Jacksonville, 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 South Jacksonville
| 12 February 2026 Thursday 6.1 ° C / 43°F  Clear |
Feels Like : 4.6 ° C / 40.4°F Humidity : % 50 Pressure : 1026 mb Wind Speed : 7.2 kmph / 4.5 miles from NNW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for South Jacksonville, IL, USA
Weather Forecast for next 15 Days for South Jacksonville 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 South Jacksonville, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 11 February 2026 Wednesday | Sunny |
-5 ° C (23°F) |
11.3 ° C (52.3°F) |
3 ° C (37.4°F) |
% 60 | 0% | 0.6 | Sunrise:06:58 AM Sunset: 05:33 PM |
Moonrise:03:01 AM Moonset: 11:50 AM Moon Phase ( Waning Crescent ) |
|
| 12 February 2026 Thursday |  Cloudy |
-0.8 ° C (30.6°F) |
9.1 ° C (48.4°F) |
3.7 ° C (38.6°F) |
% 66 | 0% | 0.6 | Sunrise:06:57 AM Sunset: 05:34 PM |
Moonrise:03:57 AM Moonset: 12:40 PM Moon Phase ( Waning Crescent ) |
|
| 13 February 2026 Friday |  Partly Cloudy |
0.4 ° C (32.7°F) |
13.2 ° C (55.8°F) |
5.4 ° C (41.7°F) |
% 72 | 0% | 0.6 | Sunrise:06:56 AM Sunset: 05:35 PM |
Moonrise:04:46 AM Moonset: 01:38 PM Moon Phase ( Waning Crescent ) |
|
| 14 February 2026 Saturday |  Overcast |
0.2 ° C (32.4°F) |
10 ° C (50°F) |
5 ° C (41°F) |
% 80 | 0% | 0.4 | Sunrise:06:54 AM Sunset: 05:36 PM |
Moonrise:05:29 AM Moonset: 02:41 PM Moon Phase ( Waning Crescent ) |
|
| 15 February 2026 Sunday | Sunny |
5.4 ° C (41.7°F) |
13.5 ° C (56.3°F) |
8.7 ° C (47.6°F) |
% 69 | 0% | 0.7 | Sunrise:06:53 AM Sunset: 05:38 PM |
Moonrise:06:05 AM Moonset: 03:48 PM Moon Phase ( Waning Crescent ) |
|
| 16 February 2026 Monday | Sunny |
1.9 ° C (35.3°F) |
13.7 ° C (56.7°F) |
5.9 ° C (42.6°F) |
% 64 | 0% | 0 | Sunrise:06:52 AM Sunset: 05:39 PM |
Moonrise:06:35 AM Moonset: 04:56 PM Moon Phase ( Waning Crescent ) |
|
| 17 February 2026 Tuesday | Partly Cloudy |
6.2 ° C (43.1°F) |
14.8 ° C (58.6°F) |
10.4 ° C (50.7°F) |
% 69 | 0% | 4 | Sunrise:06:51 AM Sunset: 05:40 PM |
Moonrise:07:01 AM Moonset: 06:05 PM Moon Phase ( New Moon ) |
|
| 18 February 2026 Wednesday | Partly Cloudy |
6.1 ° C (42.9°F) |
12.9 ° C (55.1°F) |
11.6 ° C (52.9°F) |
% 57 | 0% | 4 | Sunrise:06:49 AM Sunset: 05:41 PM |
Moonrise:07:25 AM Moonset: 07:14 PM Moon Phase ( Waxing Crescent ) |
|
| 19 February 2026 Thursday | Cloudy |
3.6 ° C (38.5°F) |
15.2 ° C (59.4°F) |
8.3 ° C (46.9°F) |
% 63 | 0% | 2 | Sunrise:06:48 AM Sunset: 05:42 PM |
Moonrise:07:48 AM Moonset: 08:22 PM Moon Phase ( Waxing Crescent ) |
|
| 20 February 2026 Friday |  Patchy rain nearby |
3 ° C (37.5°F) |
5.5 ° C (41.9°F) |
4.6 ° C (40.2°F) |
% 77 | 80% | 1 | Sunrise:06:47 AM Sunset: 05:43 PM |
Moonrise:08:11 AM Moonset: 09:34 PM Moon Phase ( Waxing Crescent ) |
|
| 21 February 2026 Saturday | Patchy rain nearby |
0.3 ° C (32.5°F) |
3.2 ° C (37.7°F) |
2.5 ° C (36.6°F) |
% 89 | 73% | 1 | Sunrise:06:45 AM Sunset: 05:44 PM |
Moonrise:08:37 AM Moonset: 10:46 PM Moon Phase ( Waxing Crescent ) |
|
| 22 February 2026 Sunday | Sunny |
-2.6 ° C (27.3°F) |
6.8 ° C (44.2°F) |
1.2 ° C (34.2°F) |
% 73 | 0% | 2 | Sunrise:06:44 AM Sunset: 05:46 PM |
Moonrise:09:06 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 23 February 2026 Monday | Patchy rain nearby |
-1 ° C (30.1°F) |
6.3 ° C (43.3°F) |
2.6 ° C (36.8°F) |
% 74 | 87% | 1 | Sunrise:06:42 AM Sunset: 05:47 PM |
Moonrise:09:42 AM Moonset: 12:02 AM Moon Phase ( Waxing Crescent ) |
|
| 24 February 2026 Tuesday | Patchy rain nearby |
5 ° C (40.9°F) |
12.2 ° C (54°F) |
8.3 ° C (46.9°F) |
% 76 | 87% | 2 | Sunrise:06:41 AM Sunset: 05:48 PM |
Moonrise:10:26 AM Moonset: 01:17 AM Moon Phase ( First Quarter ) |
|
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