Augusta Weather Forecast 15 Days, Weather in Augusta Today
Current weather conditions and 15 day weather forecast for Augusta, 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 Augusta
| 09 August 2026 Sunday 23.4 ° C / 74.1°F  Clear |
Feels Like : 24.6 ° C / 76.3°F Humidity : % 77 Pressure : 1016 mb Wind Speed : 10.8 kmph / 6.7 miles from E  Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 3 |
15 day weather forecast for Augusta, IL, USA
Weather Forecast for next 15 Days for Augusta 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 Augusta, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 08 August 2026 Saturday | Sunny |
20.2 ° C (68.4°F) |
31.9 ° C (89.4°F) |
25.8 ° C (78.4°F) |
% 74 | 36% | 6.3 | Sunrise:06:08 AM Sunset: 08:10 PM |
Moonrise:12:45 AM Moonset: 04:53 PM Moon Phase ( Waning Crescent ) |
|
| 09 August 2026 Sunday | Sunny |
21.1 ° C (70°F) |
34 ° C (93.2°F) |
27.3 ° C (81.1°F) |
% 71 | 5% | 7.3 | Sunrise:06:09 AM Sunset: 08:09 PM |
Moonrise:01:43 AM Moonset: 05:56 PM Moon Phase ( Waning Crescent ) |
|
| 10 August 2026 Monday | Sunny |
23.1 ° C (73.5°F) |
34.8 ° C (94.7°F) |
29 ° C (84.2°F) |
% 61 | 5% | 7 | Sunrise:06:10 AM Sunset: 08:08 PM |
Moonrise:02:53 AM Moonset: 06:49 PM Moon Phase ( New Moon ) |
|
| 11 August 2026 Tuesday | Sunny |
26.5 ° C (79.6°F) |
35.6 ° C (96.1°F) |
29.5 ° C (85.1°F) |
% 60 | 6% | 7 | Sunrise:06:11 AM Sunset: 08:06 PM |
Moonrise:04:12 AM Moonset: 07:31 PM Moon Phase ( New Moon ) |
|
| 12 August 2026 Wednesday | Sunny |
21.2 ° C (70.1°F) |
29.2 ° C (84.6°F) |
25.1 ° C (77.3°F) |
% 78 | 66% | 7.7 | Sunrise:06:12 AM Sunset: 08:05 PM |
Moonrise:05:35 AM Moonset: 08:06 PM Moon Phase ( New Moon ) |
|
| 13 August 2026 Thursday |  Light rain shower |
18.3 ° C (64.9°F) |
28 ° C (82.3°F) |
21.8 ° C (71.2°F) |
% 89 | 76% | 7 | Sunrise:06:13 AM Sunset: 08:04 PM |
Moonrise:06:56 AM Moonset: 08:35 PM Moon Phase ( New Moon ) |
|
| 14 August 2026 Friday |  Patchy rain nearby |
16.7 ° C (62.1°F) |
26.1 ° C (79°F) |
21 ° C (69.9°F) |
% 85 | 25% | 6 | Sunrise:06:14 AM Sunset: 08:02 PM |
Moonrise:08:14 AM Moonset: 09:00 PM Moon Phase ( Waxing Crescent ) |
|
| 15 August 2026 Saturday | Light rain shower |
17.7 ° C (63.9°F) |
21.5 ° C (70.7°F) |
19.4 ° C (66.9°F) |
% 88 | 84% | 5 | Sunrise:06:15 AM Sunset: 08:01 PM |
Moonrise:09:29 AM Moonset: 09:25 PM Moon Phase ( Waxing Crescent ) |
|
| 16 August 2026 Sunday |  Overcast |
17.6 ° C (63.8°F) |
25 ° C (77°F) |
20.4 ° C (68.8°F) |
% 86 | 30% | 5 | Sunrise:06:16 AM Sunset: 08:00 PM |
Moonrise:10:42 AM Moonset: 09:50 PM Moon Phase ( Waxing Crescent ) |
|
| 17 August 2026 Monday |  Mist |
18.8 ° C (65.8°F) |
27.9 ° C (82.2°F) |
22.5 ° C (72.5°F) |
% 84 | 50% | 7 | Sunrise:06:17 AM Sunset: 07:58 PM |
Moonrise:11:54 AM Moonset: 10:17 PM Moon Phase ( Waxing Crescent ) |
|
| 18 August 2026 Tuesday | Sunny |
19.1 ° C (66.4°F) |
29.5 ° C (85.1°F) |
23.9 ° C (75.1°F) |
% 83 | 12% | 7 | Sunrise:06:18 AM Sunset: 07:57 PM |
Moonrise:01:05 PM Moonset: 10:48 PM Moon Phase ( First Quarter ) |
|
| 19 August 2026 Wednesday | Sunny |
16.7 ° C (62.1°F) |
26 ° C (78.8°F) |
22.4 ° C (72.4°F) |
% 83 | 13% | 6 | Sunrise:06:19 AM Sunset: 07:55 PM |
Moonrise:02:13 PM Moonset: 11:25 PM Moon Phase ( First Quarter ) |
|
| 20 August 2026 Thursday | Sunny |
12.8 ° C (55°F) |
23.4 ° C (74.1°F) |
17.3 ° C (63.1°F) |
% 74 | 8% | 6 | Sunrise:06:19 AM Sunset: 07:54 PM |
Moonrise:03:18 PM Moonset: Does not set today Moon Phase ( First Quarter ) |
|
| 21 August 2026 Friday |  Partly Cloudy |
11.2 ° C (52.2°F) |
22.2 ° C (72°F) |
16.8 ° C (62.3°F) |
% 70 | 8% | 6 | Sunrise:06:20 AM Sunset: 07:52 PM |
Moonrise:04:16 PM Moonset: 12:07 AM Moon Phase ( First Quarter ) |
|
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