September weather in Sailor Springs, IL
The average temperature in Sailor Springs in September is 68.5°F (55.4°F–81.6°F). Average precipitation: 3.34 inches.
September is a fall month in Sailor Springs, and is warmer than the annual average of 55.1°F. Daily temperatures swing about 26.2°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 14m. For travel, September is a comfortable month to visit.
Avg High
81.6°F
Avg Low
55.4°F
Precipitation
3.34 in
Daylight
12h 14m
September records in Sailor Springs
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 99.0°F (2013) | 48.9°F (2009) | 0.92 in (2012) |
| September 2 | 100.9°F (2011) | 46.0°F (2017) | 4.32 in (2012) |
| September 3 | 100.9°F (2011) | 46.9°F (2017) | 0.25 in (2003) |
| September 4 | 100.9°F (2011) | 52.0°F (2010) | 0.17 in (2011) |
| September 5 | 98.1°F (2007) | 48.0°F (2010) | 0.21 in (2006) |
| September 6 | 96.1°F (2014) | 46.9°F (2011) | 1.15 in (2023) |
| September 7 | 97.0°F (2015) | 45.0°F (2017) | 0.61 in (2007) |
| September 8 | 99.0°F (2002) | 44.1°F (2024) | 2.35 in (2012) |
| September 9 | 99.0°F (2002) | 43.0°F (2024) | 2.56 in (2018) |
| September 10 | 98.1°F (2002) | 43.0°F (2024) | 0.60 in (2016) |
| September 11 | 96.1°F (2002) | 46.9°F (2024) | 1.34 in (2010) |
| September 12 | 97.0°F (2013) | 48.0°F (2017) | 0.30 in (2006) |
| September 13 | 93.9°F (2019) | 45.0°F (2014) | 1.08 in (2006) |
| September 14 | 93.9°F (2025) | 42.1°F (2014) | 0.51 in (2024) |
| September 15 | 100.0°F (2025) | 42.1°F (2011) | 1.03 in (2011) |
| September 16 | 91.9°F (2025) | 39.9°F (2011) | 0.18 in (2021) |
| September 17 | 95.0°F (2019) | 41.0°F (2011) | 3.28 in (2016) |
| September 18 | 91.9°F (2018) | 46.9°F (2000) | 1.52 in (2006) |
| September 19 | 93.9°F (2025) | 42.1°F (2012) | 1.02 in (2001) |
| September 20 | 93.9°F (2005) | 39.9°F (2003) | 1.35 in (2022) |
| September 21 | 97.0°F (2022) | 39.9°F (2006) | 0.75 in (2024) |
| September 22 | 97.0°F (2022) | 46.0°F (2000) | 0.69 in (2021) |
| September 23 | 95.0°F (2017) | 39.9°F (2012) | 1.55 in (2006) |
| September 24 | 95.0°F (2007) | 37.9°F (2012) | 1.19 in (2025) |
| September 25 | 93.9°F (2017) | 36.0°F (2001) | 0.83 in (2000) |
| September 26 | 93.0°F (2017) | 36.0°F (2001) | 3.04 in (2012) |
| September 27 | 93.0°F (2017) | 37.9°F (2000) | 2.02 in (2003) |
| September 28 | 91.0°F (2019) | 42.1°F (2001) | 1.26 in (2024) |
| September 29 | 90.0°F (2021) | 37.9°F (2003) | 0.48 in (2005) |
| September 30 | 93.0°F (2019) | 37.9°F (2003) | 1.50 in (2015) |