September weather in Augusta, WI
The average temperature in Augusta in September is 59.3°F (48.4°F–70.3°F). Average precipitation: 3.76 inches.
September is a fall month in Augusta, and is warmer than the annual average of 43.4°F. Daily temperatures swing about 21.9°F between overnight low and afternoon high. Daylight averages about 12h 18m. For travel, September is a comfortable month to visit.
Avg High
70.3°F
Avg Low
48.4°F
Precipitation
3.76 in
Daylight
12h 18m
September records in Augusta
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 84.9°F (2022) | 41.0°F (2009) | 0.47 in (2010) |
| September 2 | 89.1°F (2011) | 42.1°F (2003) | 0.51 in (2010) |
| September 3 | 91.9°F (2023) | 39.9°F (2013) | 0.90 in (2015) |
| September 4 | 97.0°F (2023) | 41.0°F (2025) | 1.10 in (2014) |
| September 5 | 93.9°F (2023) | 39.9°F (2010) | 0.54 in (2012) |
| September 6 | 89.1°F (2023) | 39.9°F (2011) | 0.55 in (2004) |
| September 7 | 88.0°F (2003) | 36.0°F (2024) | 4.50 in (2015) |
| September 8 | 91.0°F (2003) | 39.9°F (2024) | 0.42 in (2015) |
| September 9 | 89.1°F (2003) | 35.1°F (2008) | 0.10 in (2015) |
| September 10 | 89.1°F (2013) | 37.9°F (2008) | 0.79 in (2019) |
| September 11 | 87.1°F (2005) | 36.0°F (2020) | 1.69 in (2019) |
| September 12 | 87.1°F (2005) | 34.0°F (2007) | 0.51 in (2008) |
| September 13 | 84.9°F (2005) | 30.9°F (2014) | 0.75 in (2003) |
| September 14 | 81.0°F (2004) | 32.0°F (2014) | 0.43 in (2007) |
| September 15 | 84.0°F (2017) | 28.0°F (2007) | 2.84 in (2004) |
| September 16 | 89.1°F (2018) | 30.9°F (2014) | 1.05 in (2010) |
| September 17 | 84.9°F (2024) | 37.0°F (2011) | 1.01 in (2006) |
| September 18 | 88.0°F (2018) | 30.0°F (2020) | 0.68 in (2013) |
| September 19 | 82.9°F (2003) | 34.0°F (2012) | 1.07 in (2003) |
| September 20 | 86.0°F (2021) | 33.1°F (2006) | 0.31 in (2024) |
| September 21 | 82.0°F (2023) | 34.0°F (2006) | 1.92 in (2016) |
| September 22 | 84.9°F (2007) | 36.0°F (2003) | 4.10 in (2016) |
| September 23 | 90.0°F (2017) | 30.0°F (2012) | 2.90 in (2010) |
| September 24 | 89.1°F (2017) | 33.1°F (2012) | 1.97 in (2010) |
| September 25 | 88.0°F (2017) | 37.9°F (2012) | 1.81 in (2023) |
| September 26 | 84.0°F (2017) | 30.0°F (2012) | 1.04 in (2023) |
| September 27 | 79.0°F (2008) | 28.9°F (2012) | 0.61 in (2011) |
| September 28 | 79.0°F (2013) | 24.1°F (2018) | 0.36 in (2009) |
| September 29 | 82.0°F (2024) | 28.9°F (2003) | 0.46 in (2005) |
| September 30 | 84.0°F (2025) | 28.0°F (2009) | 0.72 in (2007) |