August weather in Altona, IL
The average temperature in Altona in August is 70.6°F (59.3°F–81.9°F). Average precipitation: 3.76 inches.
August is a summer month in Altona, and is warmer than the annual average of 49°F. Daily temperatures swing about 22.6°F between overnight low and afternoon high. Daylight averages about 13h 39m. For travel, August is a comfortable month to visit.
Avg High
81.9°F
Avg Low
59.3°F
Precipitation
3.76 in
Daylight
13h 39m
August records in Altona
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 95.0°F (2006) | 54.0°F (2009) | 0.96 in (2024) |
| August 2 | 95.0°F (2006) | 52.0°F (2009) | 0.91 in (2006) |
| August 3 | 93.9°F (2011) | 53.1°F (2009) | 0.93 in (2022) |
| August 4 | 93.0°F (2012) | 51.1°F (2017) | 0.68 in (2008) |
| August 5 | 90.0°F (2012) | 51.1°F (2017) | 0.98 in (2023) |
| August 6 | 90.0°F (2018) | 51.1°F (2020) | 0.36 in (2006) |
| August 7 | 91.0°F (2022) | 51.1°F (2012) | 2.83 in (2023) |
| August 8 | 99.0°F (2012) | 51.1°F (2017) | 0.98 in (2009) |
| August 9 | 89.1°F (2009) | 51.1°F (2017) | 0.96 in (2006) |
| August 10 | 90.0°F (2018) | 48.9°F (2008) | 0.11 in (2021) |
| August 11 | 93.0°F (2020) | 48.9°F (2008) | 0.55 in (2021) |
| August 12 | 88.0°F (2021) | 48.9°F (2012) | 1.79 in (2023) |
| August 13 | 84.0°F (2021) | 48.9°F (2014) | 0.44 in (2012) |
| August 14 | 86.0°F (2022) | 46.9°F (2013) | 0.16 in (2011) |
| August 15 | 87.1°F (2015) | 46.9°F (2013) | 0.53 in (2024) |
| August 16 | 88.0°F (2015) | 50.0°F (2011) | 0.84 in (2018) |
| August 17 | 88.0°F (2015) | 51.1°F (2012) | 0.71 in (2009) |
| August 18 | 87.1°F (2015) | 46.9°F (2012) | 0.45 in (2015) |
| August 19 | 88.0°F (2021) | 46.9°F (2012) | 0.67 in (2019) |
| August 20 | 91.0°F (2019) | 48.9°F (2012) | 1.57 in (2009) |
| August 21 | 88.0°F (2023) | 48.9°F (2012) | 1.15 in (2022) |
| August 22 | 89.1°F (2013) | 46.9°F (2012) | 1.62 in (2017) |
| August 23 | 90.0°F (2023) | 48.9°F (2009) | 1.45 in (2014) |
| August 24 | 93.9°F (2012) | 48.9°F (2009) | 1.32 in (2011) |
| August 25 | 95.0°F (2023) | 48.9°F (2015) | 0.68 in (2018) |
| August 26 | 93.9°F (2014) | 48.9°F (2015) | 1.64 in (2021) |
| August 27 | 91.9°F (2013) | 48.9°F (2015) | 1.98 in (2012) |
| August 28 | 95.0°F (2013) | 48.9°F (2015) | 0.89 in (2006) |
| August 29 | 95.0°F (2013) | 48.9°F (2008) | 2.02 in (2018) |
| August 30 | 89.1°F (2021) | 46.9°F (2009) | 0.42 in (2014) |
| August 31 | 99.0°F (2013) | 44.1°F (2009) | 0.21 in (2011) |