September weather in Athens, IL
The average temperature in Athens in September is 66.0°F (54.0°F–78.1°F). Average precipitation: 3.15 inches.
September is a fall month in Athens, and is warmer than the annual average of 52°F. Daily temperatures swing about 24.1°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 15m. For travel, September is one of the best months of the year to visit.
Avg High
78.1°F
Avg Low
54.0°F
Precipitation
3.15 in
Daylight
12h 15m
September records in Athens
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 88.0°F (2010) | 48.0°F (2009) | 3.80 in (2021) |
| September 2 | 87.1°F (2008) | 48.9°F (2009) | 0.41 in (2003) |
| September 3 | 89.1°F (2002) | 50.0°F (2009) | 2.22 in (2010) |
| September 4 | 93.0°F (2007) | 52.0°F (2010) | 0.49 in (2022) |
| September 5 | 95.0°F (2007) | 48.9°F (2003) | 1.92 in (2008) |
| September 6 | 88.0°F (2005) | 46.9°F (2003) | 1.19 in (2009) |
| September 7 | 89.1°F (2002) | 48.0°F (2000) | 0.32 in (2008) |
| September 8 | 91.9°F (2002) | 51.1°F (2010) | 2.37 in (2018) |
| September 9 | 91.9°F (2002) | 50.0°F (2008) | 1.31 in (2015) |
| September 10 | 91.0°F (2002) | 46.9°F (2008) | 1.73 in (2014) |
| September 11 | 91.9°F (2005) | 46.9°F (2008) | 2.55 in (2014) |
| September 12 | 93.9°F (2000) | 43.0°F (2007) | 1.55 in (2008) |
| September 13 | 91.9°F (2005) | 43.0°F (2007) | 0.81 in (2020) |
| September 14 | 91.9°F (2005) | 48.0°F (2000) | 1.30 in (2008) |
| September 15 | 84.0°F (2004) | 37.9°F (2007) | 1.40 in (2008) |
| September 16 | 81.0°F (2004) | 39.9°F (2000) | 0.70 in (2014) |
| September 17 | 84.0°F (2006) | 39.0°F (2000) | 0.37 in (2023) |
| September 18 | 89.1°F (2007) | 48.9°F (2005) | 0.85 in (2015) |
| September 19 | 90.0°F (2000) | 46.0°F (2006) | 1.89 in (2022) |
| September 20 | 91.9°F (2000) | 39.0°F (2003) | 1.25 in (2005) |
| September 21 | 90.0°F (2007) | 39.0°F (2006) | 1.62 in (2009) |
| September 22 | 90.0°F (2007) | 42.1°F (2000) | 0.76 in (2010) |
| September 23 | 93.0°F (2005) | 41.0°F (2002) | 0.44 in (2019) |
| September 24 | 91.0°F (2007) | 39.9°F (2002) | 0.52 in (2024) |
| September 25 | 89.1°F (2007) | 37.9°F (2001) | 0.40 in (2024) |
| September 26 | 84.9°F (2007) | 36.0°F (2000) | 0.73 in (2000) |
| September 27 | 81.0°F (2008) | 36.0°F (2000) | 0.55 in (2003) |
| September 28 | 81.0°F (2008) | 41.0°F (2001) | 0.78 in (2019) |
| September 29 | 81.0°F (2008) | 35.1°F (2003) | 3.09 in (2019) |
| September 30 | 88.0°F (2002) | 35.1°F (2003) | 0.44 in (2008) |