August weather in Alton, IN
The average temperature in Alton in August is °F (°F–°F). Average precipitation: 3.20 inches.
August is a summer month in Alton, and is cooler than the annual average of 0°F. Daylight averages about 13h 29m.
Avg High
°F
Avg Low
°F
Precipitation
3.20 in
Daylight
13h 29m
August records in Alton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 84.9°F (2016) | 64.9°F (2018) | 0.56 in (2016) |
| August 2 | 86.0°F (2014) | 63.0°F (2014) | 0.41 in (2020) |
| August 3 | 82.0°F (2014) | 59.0°F (2014) | 1.63 in (2020) |
| August 4 | 91.0°F (2015) | 63.0°F (2020) | 0.14 in (2020) |
| August 5 | 88.0°F (2015) | 57.0°F (2013) | 1.21 in (2015) |
| August 6 | 84.0°F (2014) | 64.0°F (2014) | 0.37 in (2015) |
| August 7 | 87.1°F (2019) | 63.0°F (2015) | 0.72 in (2017) |
| August 8 | 87.1°F (2018) | 71.1°F (2018) | 0.07 in (2014) |
| August 9 | 90.0°F (2016) | 66.9°F (2014) | 0.38 in (2013) |
| August 10 | 90.0°F (2016) | 68.0°F (2020) | 0.45 in (2020) |
| August 11 | 91.9°F (2020) | 66.9°F (2015) | 0.14 in (2015) |
| August 12 | 82.0°F (2014) | 66.9°F (2017) | 0.62 in (2014) |
| August 13 | 86.0°F (2019) | 70.0°F (2013) | 0.24 in (2013) |
| August 14 | 89.1°F (2019) | 64.9°F (2017) | 1.22 in (2020) |
| August 15 | 82.9°F (2016) | 57.9°F (2014) | 0.44 in (2016) |
| August 16 | 88.0°F (2015) | 64.9°F (2015) | 2.96 in (2018) |
| August 17 | 84.0°F (2018) | 66.9°F (2018) | 0.59 in (2018) |
| August 18 | 90.0°F (2019) | 61.0°F (2013) | 0.70 in (2016) |
| August 19 | 87.1°F (2015) | 57.9°F (2012) | 0.69 in (2020) |
| August 20 | 80.1°F (2015) | 55.9°F (2012) | 0.84 in (2015) |
| August 21 | 91.0°F (2019) | 66.0°F (2019) | 0.69 in (2016) |
| August 22 | 90.0°F (2019) | 55.9°F (2012) | 1.24 in (2019) |
| August 23 | 82.0°F (2020) | 60.1°F (2017) | 0.46 in (2017) |
| August 24 | 84.9°F (2020) | 59.0°F (2019) | 0.48 in (2020) |
| August 25 | 91.0°F (2012) | 59.0°F (2012) | 0.00 in (2012) |
| August 26 | 91.0°F (2014) | 70.0°F (2014) | 0.40 in (2019) |
| August 27 | 90.0°F (2012) | 54.0°F (2015) | 0.30 in (2019) |
| August 28 | 90.0°F (2014) | 61.0°F (2019) | 0.13 in (2020) |
| August 29 | 93.9°F (2016) | 64.9°F (2017) | 0.50 in (2020) |
| August 30 | 91.0°F (2013) | 59.0°F (2017) | 0.04 in (2017) |
| August 31 | 91.9°F (2013) | 64.9°F (2015) | 0.25 in (2014) |