Big Mound Weather Forecast 15 Days, Weather in Big Mound Today
Current weather conditions and 15 day weather forecast for Big Mound, 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 Big Mound
| 28 July 2026 Tuesday 34.2 ° C / 93.6°F  Sunny |
Feels Like : 40.2 ° C / 104.4°F Humidity : % 54 Pressure : 1008 mb Wind Speed : 18.4 kmph / 11.4 miles from N  Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 2 |
15 day weather forecast for Big Mound, IL, USA
Weather Forecast for next 15 Days for Big Mound 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 Big Mound, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 28 July 2026 Tuesday | Sunny |
24.3 ° C (75.7°F) |
35.8 ° C (96.4°F) |
29.4 ° C (84.9°F) |
% 71 | 6% | 9.3 | Sunrise:05:52 AM Sunset: 08:07 PM |
Moonrise:08:04 PM Moonset: 04:58 AM Moon Phase ( Full Moon ) |
|
| 29 July 2026 Wednesday | Sunny |
17 ° C (62.6°F) |
28.3 ° C (82.9°F) |
23.1 ° C (73.7°F) |
% 68 | 5% | 9.1 | Sunrise:05:53 AM Sunset: 08:07 PM |
Moonrise:08:33 PM Moonset: 06:00 AM Moon Phase ( Full Moon ) |
|
| 30 July 2026 Thursday | Sunny |
16.9 ° C (62.4°F) |
28.6 ° C (83.5°F) |
22.9 ° C (73.1°F) |
% 73 | 6% | 9.2 | Sunrise:05:54 AM Sunset: 08:06 PM |
Moonrise:08:58 PM Moonset: 07:00 AM Moon Phase ( Waning Gibbous ) |
|
| 31 July 2026 Friday |  Partly Cloudy |
18.8 ° C (65.9°F) |
23.3 ° C (74°F) |
20.9 ° C (69.6°F) |
% 86 | 76% | 3.9 | Sunrise:05:55 AM Sunset: 08:05 PM |
Moonrise:09:20 PM Moonset: 08:00 AM Moon Phase ( Waning Gibbous ) |
|
| 01 August 2026 Saturday |  Light rain shower |
18.9 ° C (66°F) |
20.9 ° C (69.5°F) |
19.8 ° C (67.6°F) |
% 96 | 91% | 2 | Sunrise:05:56 AM Sunset: 08:04 PM |
Moonrise:09:41 PM Moonset: 08:59 AM Moon Phase ( Waning Gibbous ) |
|
| 02 August 2026 Sunday |  Overcast |
17.6 ° C (63.7°F) |
22.4 ° C (72.3°F) |
20.1 ° C (68.1°F) |
% 91 | 86% | 5 | Sunrise:05:56 AM Sunset: 08:03 PM |
Moonrise:10:02 PM Moonset: 09:58 AM Moon Phase ( Waning Gibbous ) |
|
| 03 August 2026 Monday |  Fog |
18.6 ° C (65.4°F) |
27.3 ° C (81.2°F) |
22.6 ° C (72.7°F) |
% 88 | 61% | 7 | Sunrise:05:57 AM Sunset: 08:02 PM |
Moonrise:10:25 PM Moonset: 10:59 AM Moon Phase ( Last Quarter ) |
|
| 04 August 2026 Tuesday |  Patchy rain nearby |
20.2 ° C (68.4°F) |
29 ° C (84.3°F) |
24.4 ° C (75.9°F) |
% 84 | 76% | 6 | Sunrise:05:58 AM Sunset: 08:01 PM |
Moonrise:10:50 PM Moonset: 12:01 PM Moon Phase ( Last Quarter ) |
|
| 05 August 2026 Wednesday | Sunny |
21.1 ° C (70°F) |
32.1 ° C (89.8°F) |
26 ° C (78.8°F) |
% 79 | 12% | 8 | Sunrise:05:59 AM Sunset: 07:59 PM |
Moonrise:11:20 PM Moonset: 01:07 PM Moon Phase ( Last Quarter ) |
|
| 06 August 2026 Thursday | Sunny |
22.2 ° C (72°F) |
32.6 ° C (90.6°F) |
27 ° C (80.7°F) |
% 80 | 57% | 8 | Sunrise:06:00 AM Sunset: 07:58 PM |
Moonrise:11:56 PM Moonset: 02:15 PM Moon Phase ( Last Quarter ) |
|
| 07 August 2026 Friday |  Mist |
22.5 ° C (72.5°F) |
32 ° C (89.6°F) |
26.5 ° C (79.7°F) |
% 82 | 24% | 8 | Sunrise:06:01 AM Sunset: 07:57 PM |
Moonrise:Does not rise today Moonset: 03:26 PM Moon Phase ( Waning Crescent ) |
|
| 08 August 2026 Saturday | Mist |
21.4 ° C (70.5°F) |
27.9 ° C (82.3°F) |
23.7 ° C (74.6°F) |
% 90 | 85% | 6 | Sunrise:06:02 AM Sunset: 07:56 PM |
Moonrise:12:42 AM Moonset: 04:35 PM Moon Phase ( Waning Crescent ) |
|
| 09 August 2026 Sunday | Sunny |
21.1 ° C (69.9°F) |
30.5 ° C (87°F) |
25.5 ° C (77.9°F) |
% 86 | 76% | 8 | Sunrise:06:03 AM Sunset: 07:55 PM |
Moonrise:01:40 AM Moonset: 05:38 PM Moon Phase ( Waning Crescent ) |
|
| 10 August 2026 Monday | Sunny |
24.6 ° C (76.2°F) |
35.8 ° C (96.5°F) |
29.2 ° C (84.6°F) |
% 73 | 6% | 9 | Sunrise:06:04 AM Sunset: 07:54 PM |
Moonrise:02:50 AM Moonset: 06:32 PM Moon Phase ( New Moon ) |
|
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