Mercer Weather Forecast 15 Days, Weather in Mercer Today
Current weather conditions and 15 day weather forecast for Mercer, 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 Mercer
| 05 November 2026 Thursday 11.6 ° C / 52.8°F  Patchy rain nearby |
Feels Like : 9.2 ° C / 48.6°F Humidity : % 82 Pressure : 1011 mb Wind Speed : 14.4 kmph / 8.9 miles from NW  Visibility : 10 km Precipitation (rainfall) : 0.08 mm Cloud (%) : 100 |
15 day weather forecast for Mercer, IL, USA
Weather Forecast for next 15 Days for Mercer 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 Mercer, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 05 November 2026 Thursday |  Overcast |
7.9 ° C (46.2°F) |
11.6 ° C (52.9°F) |
9.6 ° C (49.3°F) |
% 81 | 67% | 0.2 | Sunrise:06:39 AM Sunset: 04:54 PM |
Moonrise:02:34 AM Moonset: 02:49 PM Moon Phase ( Waning Crescent ) |
|
| 06 November 2026 Friday |  Sunny |
2.3 ° C (36.2°F) |
8.6 ° C (47.5°F) |
5.6 ° C (42.1°F) |
% 65 | 6% | 2.6 | Sunrise:06:40 AM Sunset: 04:52 PM |
Moonrise:03:47 AM Moonset: 03:13 PM Moon Phase ( Waning Crescent ) |
|
| 07 November 2026 Saturday | Sunny |
0.9 ° C (33.6°F) |
10.4 ° C (50.8°F) |
5.1 ° C (41.1°F) |
% 67 | 8% | 2.3 | Sunrise:06:41 AM Sunset: 04:51 PM |
Moonrise:05:00 AM Moonset: 03:39 PM Moon Phase ( New Moon ) |
|
| 08 November 2026 Sunday | Sunny |
4.3 ° C (39.8°F) |
16.7 ° C (62.1°F) |
9.6 ° C (49.2°F) |
% 76 | 9% | 2.5 | Sunrise:06:42 AM Sunset: 04:50 PM |
Moonrise:06:13 AM Moonset: 04:09 PM Moon Phase ( New Moon ) |
|
| 09 November 2026 Monday | Sunny |
6.5 ° C (43.6°F) |
18.8 ° C (65.8°F) |
12.2 ° C (54°F) |
% 76 | 9% | 5 | Sunrise:06:43 AM Sunset: 04:49 PM |
Moonrise:07:26 AM Moonset: 04:45 PM Moon Phase ( New Moon ) |
|
| 10 November 2026 Tuesday |  Partly Cloudy |
7.3 ° C (45.1°F) |
15 ° C (59.1°F) |
10.5 ° C (50.9°F) |
% 70 | 8% | 5 | Sunrise:06:45 AM Sunset: 04:48 PM |
Moonrise:08:36 AM Moonset: 05:28 PM Moon Phase ( New Moon ) |
|
| 11 November 2026 Wednesday | Partly Cloudy |
5.6 ° C (42.1°F) |
14.6 ° C (58.2°F) |
9.6 ° C (49.2°F) |
% 71 | 9% | 4 | Sunrise:06:46 AM Sunset: 04:47 PM |
Moonrise:09:39 AM Moonset: 06:18 PM Moon Phase ( Waxing Crescent ) |
|
| 12 November 2026 Thursday | Partly Cloudy |
3.2 ° C (37.8°F) |
8.4 ° C (47.1°F) |
6.9 ° C (44.3°F) |
% 69 | 10% | 3 | Sunrise:06:47 AM Sunset: 04:46 PM |
Moonrise:10:33 AM Moonset: 07:16 PM Moon Phase ( Waxing Crescent ) |
|
| 13 November 2026 Friday | Sunny |
0.7 ° C (33.2°F) |
6.3 ° C (43.4°F) |
3.2 ° C (37.7°F) |
% 65 | 5% | 3 | Sunrise:06:48 AM Sunset: 04:45 PM |
Moonrise:11:18 AM Moonset: 08:18 PM Moon Phase ( Waxing Crescent ) |
|
| 14 November 2026 Saturday | Sunny |
1 ° C (33.8°F) |
10.8 ° C (51.4°F) |
6.2 ° C (43.2°F) |
% 65 | 5% | 4 | Sunrise:06:49 AM Sunset: 04:44 PM |
Moonrise:11:54 AM Moonset: 09:21 PM Moon Phase ( First Quarter ) |
|
| 15 November 2026 Sunday | Partly Cloudy |
5.1 ° C (41.1°F) |
13.9 ° C (57.1°F) |
9.4 ° C (48.9°F) |
% 74 | 13% | 4 | Sunrise:06:51 AM Sunset: 04:44 PM |
Moonrise:12:23 PM Moonset: 10:24 PM Moon Phase ( First Quarter ) |
|
| 16 November 2026 Monday | Partly Cloudy |
5.5 ° C (41.9°F) |
12.1 ° C (53.9°F) |
8.2 ° C (46.8°F) |
% 74 | 9% | 4 | Sunrise:06:52 AM Sunset: 04:43 PM |
Moonrise:12:48 PM Moonset: 11:26 PM Moon Phase ( First Quarter ) |
|
| 17 November 2026 Tuesday | Overcast |
4.8 ° C (40.6°F) |
14.3 ° C (57.8°F) |
9.8 ° C (49.6°F) |
% 73 | 13% | 4 | Sunrise:06:53 AM Sunset: 04:42 PM |
Moonrise:01:10 PM Moonset: Does not set today Moon Phase ( First Quarter ) |
|
| 18 November 2026 Wednesday | Overcast |
11.1 ° C (51.9°F) |
15.4 ° C (59.6°F) |
12.9 ° C (55.3°F) |
% 79 | 26% | 4 | Sunrise:06:54 AM Sunset: 04:41 PM |
Moonrise:01:30 PM Moonset: 12:27 AM Moon Phase ( Waxing Gibbous ) |
|
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