September weather in Willow Springs, MO
The average temperature in Willow Springs in September is 69.1°F (57.4°F–80.8°F). Average precipitation: 3.09 inches.
September is a fall month in Willow Springs, and is warmer than the annual average of 57°F. Daily temperatures swing about 23.4°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 12h 13m. For travel, September is a comfortable month to visit.
Avg High
80.8°F
Avg Low
57.4°F
Precipitation
3.09 in
Daylight
12h 13m
September records in Willow Springs
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 95.0°F (2011) | 50.0°F (2023) | 1.27 in (2010) |
| September 2 | 100.9°F (2000) | 48.9°F (2009) | 1.79 in (2022) |
| September 3 | 102.0°F (2000) | 52.0°F (2009) | 3.40 in (2008) |
| September 4 | 98.1°F (1998) | 46.9°F (1997) | 1.89 in (2008) |
| September 5 | 97.0°F (1998) | 41.0°F (1997) | 0.34 in (2009) |
| September 6 | 95.0°F (1998) | 48.0°F (2003) | 0.39 in (2023) |
| September 7 | 99.0°F (1998) | 46.0°F (2017) | 0.93 in (2012) |
| September 8 | 91.0°F (2005) | 43.0°F (2025) | 1.52 in (2001) |
| September 9 | 93.9°F (2013) | 43.0°F (2024) | 3.54 in (2010) |
| September 10 | 93.0°F (2013) | 45.0°F (1998) | 0.72 in (2010) |
| September 11 | 93.9°F (2013) | 46.9°F (2017) | 0.62 in (2003) |
| September 12 | 93.9°F (2025) | 46.9°F (2015) | 1.27 in (2023) |
| September 13 | 95.0°F (2025) | 44.1°F (2015) | 0.72 in (2003) |
| September 14 | 96.1°F (2025) | 45.0°F (1999) | 1.95 in (2008) |
| September 15 | 93.9°F (2025) | 44.1°F (2007) | 1.27 in (2005) |
| September 16 | 95.0°F (2019) | 45.0°F (2000) | 0.37 in (2024) |
| September 17 | 93.9°F (2025) | 43.0°F (1999) | 1.13 in (2011) |
| September 18 | 93.0°F (2018) | 45.0°F (2012) | 0.96 in (2005) |
| September 19 | 93.9°F (2018) | 42.1°F (2012) | 0.93 in (2009) |
| September 20 | 93.0°F (2018) | 39.9°F (2006) | 0.54 in (2013) |
| September 21 | 93.0°F (2022) | 44.1°F (1999) | 1.39 in (2012) |
| September 22 | 91.9°F (2017) | 42.1°F (1999) | 1.12 in (2006) |
| September 23 | 91.0°F (2017) | 41.0°F (2012) | 2.97 in (2025) |
| September 24 | 91.0°F (2017) | 43.0°F (2014) | 1.08 in (2025) |
| September 25 | 88.0°F (1998) | 37.9°F (2001) | 1.72 in (2005) |
| September 26 | 89.1°F (2017) | 36.0°F (2001) | 0.44 in (2012) |
| September 27 | 89.1°F (1998) | 41.0°F (2000) | 1.36 in (2020) |
| September 28 | 91.9°F (1999) | 42.1°F (1996) | 0.31 in (2005) |
| September 29 | 90.0°F (1998) | 36.0°F (2003) | 0.20 in (2021) |
| September 30 | 91.0°F (2019) | 35.1°F (1999) | 0.26 in (2003) |