Lancaster Weather Forecast 15 Days, Weather in Lancaster Today
Current weather conditions and 15 day weather forecast for Lancaster, 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 Lancaster
| 25 September 2026 Friday 15.4 ° C / 59.7°F  Overcast |
Feels Like : 14.7 ° C / 58.5°F Humidity : % 86 Pressure : 1025 mb Wind Speed : 8.6 kmph / 5.4 miles from E  Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15 day weather forecast for Lancaster, IL, USA
Weather Forecast for next 15 Days for Lancaster 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 Lancaster, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 25 September 2026 Friday | Overcast |
13.5 ° C (56.4°F) |
16.6 ° C (61.9°F) |
15.3 ° C (59.5°F) |
% 86 | 61% | 3.9 | Sunrise:06:48 AM Sunset: 06:50 PM |
Moonrise:06:18 PM Moonset: 05:47 AM Moon Phase ( Full Moon ) |
|
| 26 September 2026 Saturday | Overcast |
10.7 ° C (51.3°F) |
18.4 ° C (65.1°F) |
14.3 ° C (57.7°F) |
% 69 | 18% | 4.7 | Sunrise:06:49 AM Sunset: 06:49 PM |
Moonrise:06:37 PM Moonset: 06:50 AM Moon Phase ( Full Moon ) |
|
| 27 September 2026 Sunday | Overcast |
11.3 ° C (52.4°F) |
19.9 ° C (67.9°F) |
15.2 ° C (59.3°F) |
% 67 | 12% | 5.2 | Sunrise:06:50 AM Sunset: 06:47 PM |
Moonrise:06:58 PM Moonset: 07:55 AM Moon Phase ( Waning Gibbous ) |
|
| 28 September 2026 Monday | Overcast |
11.1 ° C (52°F) |
20.4 ° C (68.8°F) |
15.7 ° C (60.2°F) |
% 76 | 13% | 4.7 | Sunrise:06:52 AM Sunset: 06:45 PM |
Moonrise:07:21 PM Moonset: 09:02 AM Moon Phase ( Waning Gibbous ) |
|
| 29 September 2026 Tuesday | Overcast |
13.8 ° C (56.9°F) |
16.5 ° C (61.7°F) |
14.8 ° C (58.6°F) |
% 82 | 68% | 4 | Sunrise:06:53 AM Sunset: 06:43 PM |
Moonrise:07:50 PM Moonset: 10:12 AM Moon Phase ( Waning Gibbous ) |
|
| 30 September 2026 Wednesday |  Light rain shower |
10.7 ° C (51.3°F) |
14.8 ° C (58.6°F) |
13.1 ° C (55.6°F) |
% 92 | 90% | 4 | Sunrise:06:54 AM Sunset: 06:41 PM |
Moonrise:08:26 PM Moonset: 11:24 AM Moon Phase ( Waning Gibbous ) |
|
| 01 October 2026 Thursday |  Sunny |
9.7 ° C (49.5°F) |
17.7 ° C (63.9°F) |
13.1 ° C (55.5°F) |
% 73 | 7% | 5 | Sunrise:06:55 AM Sunset: 06:40 PM |
Moonrise:09:13 PM Moonset: 12:34 PM Moon Phase ( Last Quarter ) |
|
| 02 October 2026 Friday | Sunny |
8.5 ° C (47.3°F) |
17.6 ° C (63.6°F) |
12.9 ° C (55.2°F) |
% 67 | 7% | 5 | Sunrise:06:56 AM Sunset: 06:38 PM |
Moonrise:10:11 PM Moonset: 01:40 PM Moon Phase ( Last Quarter ) |
|
| 03 October 2026 Saturday | Overcast |
13.4 ° C (56.1°F) |
20.3 ° C (68.5°F) |
15.9 ° C (60.7°F) |
% 66 | 9% | 6 | Sunrise:06:57 AM Sunset: 06:36 PM |
Moonrise:11:19 PM Moonset: 02:36 PM Moon Phase ( Last Quarter ) |
|
| 04 October 2026 Sunday |  Patchy rain nearby |
12.1 ° C (53.8°F) |
24.5 ° C (76.1°F) |
18.5 ° C (65.3°F) |
% 81 | 68% | 5 | Sunrise:06:58 AM Sunset: 06:35 PM |
Moonrise:Does not rise today Moonset: 03:22 PM Moon Phase ( Last Quarter ) |
|
| 05 October 2026 Monday | Sunny |
5.2 ° C (41.4°F) |
11.4 ° C (52.5°F) |
8.2 ° C (46.8°F) |
% 74 | 69% | 4 | Sunrise:06:59 AM Sunset: 06:33 PM |
Moonrise:12:35 AM Moonset: 03:59 PM Moon Phase ( Waning Crescent ) |
|
| 06 October 2026 Tuesday | Sunny |
2.2 ° C (35.9°F) |
9.6 ° C (49.3°F) |
6 ° C (42.8°F) |
% 62 | 5% | 3 | Sunrise:07:00 AM Sunset: 06:31 PM |
Moonrise:01:54 AM Moonset: 04:29 PM Moon Phase ( Waning Crescent ) |
|
| 07 October 2026 Wednesday | Overcast |
5.1 ° C (41.2°F) |
14.6 ° C (58.3°F) |
9.1 ° C (48.3°F) |
% 70 | 14% | 4 | Sunrise:07:01 AM Sunset: 06:29 PM |
Moonrise:03:13 AM Moonset: 04:55 PM Moon Phase ( Waning Crescent ) |
|
| 08 October 2026 Thursday | Overcast |
2.2 ° C (36°F) |
10 ° C (49.9°F) |
6.4 ° C (43.5°F) |
% 72 | 15% | 3 | Sunrise:07:03 AM Sunset: 06:28 PM |
Moonrise:04:31 AM Moonset: 05:18 PM Moon Phase ( Waning Crescent ) |
|
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