September weather in Stronghurst, IL
The average temperature in Stronghurst in September is 66.2°F (55.2°F–77.1°F). Average precipitation: 3.89 inches.
September is a fall month in Stronghurst, and is warmer than the annual average of 51.2°F. Daily temperatures swing about 21.9°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
77.1°F
Avg Low
55.2°F
Precipitation
3.89 in
Daylight
12h 15m
September records in Stronghurst
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 100.9°F (2000) | 44.1°F (1967) | 2.85 in (1980) |
| September 2 | 99.0°F (2011) | 43.0°F (1967) | 1.32 in (1970) |
| September 3 | 96.1°F (2011) | 42.1°F (1974) | 0.54 in (1991) |
| September 4 | 95.0°F (1990) | 39.9°F (1974) | 2.34 in (2008) |
| September 5 | 96.1°F (1990) | 46.0°F (1974) | 0.80 in (1971) |
| September 6 | 97.0°F (1985) | 45.0°F (1988) | 1.63 in (1989) |
| September 7 | 96.1°F (1985) | 44.1°F (2025) | 1.24 in (1965) |
| September 8 | 95.0°F (2013) | 43.0°F (1986) | 2.91 in (2016) |
| September 9 | 95.0°F (1983) | 44.1°F (2008) | 1.58 in (1992) |
| September 10 | 100.9°F (2013) | 41.0°F (1976) | 3.92 in (2014) |
| September 11 | 98.1°F (2000) | 45.0°F (1967) | 1.30 in (2022) |
| September 12 | 95.0°F (1991) | 43.0°F (1975) | 1.90 in (1970) |
| September 13 | 91.0°F (2019) | 37.0°F (2014) | 3.65 in (2008) |
| September 14 | 96.1°F (2025) | 37.0°F (2014) | 3.66 in (1998) |
| September 15 | 93.9°F (2025) | 36.0°F (2007) | 1.80 in (2019) |
| September 16 | 91.0°F (1997) | 39.9°F (1984) | 1.33 in (1980) |
| September 17 | 93.0°F (1988) | 42.1°F (2014) | 1.28 in (1968) |
| September 18 | 93.9°F (2021) | 39.9°F (1973) | 1.66 in (2001) |
| September 19 | 91.0°F (2022) | 36.0°F (1991) | 1.78 in (1983) |
| September 20 | 93.9°F (2013) | 34.0°F (1991) | 1.07 in (1965) |
| September 21 | 95.0°F (2022) | 36.0°F (1983) | 2.20 in (2021) |
| September 22 | 91.9°F (1988) | 33.1°F (1995) | 1.80 in (2000) |
| September 23 | 95.0°F (2017) | 35.1°F (1989) | 1.95 in (1970) |
| September 24 | 95.0°F (2017) | 35.1°F (1989) | 2.04 in (1986) |
| September 25 | 93.0°F (2017) | 37.9°F (1965) | 1.42 in (1976) |
| September 26 | 91.9°F (2017) | 32.0°F (1984) | 1.72 in (1981) |
| September 27 | 89.1°F (1990) | 37.0°F (1985) | 1.83 in (1999) |
| September 28 | 89.1°F (1971) | 39.0°F (1970) | 3.83 in (2019) |
| September 29 | 88.0°F (2002) | 30.0°F (1984) | 2.20 in (1986) |
| September 30 | 90.0°F (1994) | 33.1°F (1984) | 1.40 in (2019) |