September weather in Antioch, IL
The average temperature in Antioch in September is 64.3°F (54.5°F–74.1°F). Average precipitation: inches.
September is a fall month in Antioch, and is warmer than the annual average of 48.6°F. Daily temperatures swing about 19.6°F between overnight low and afternoon high. Daylight averages about 12h 16m. For travel, September is one of the best months of the year to visit.
Avg High
74.1°F
Avg Low
54.5°F
Precipitation
in
Daylight
12h 16m
September records in Antioch
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 100.0°F (1953) | 39.9°F (1967) | 1.70 in (1914) |
| September 2 | 100.0°F (1953) | 35.1°F (1909) | 2.00 in (1905) |
| September 3 | 95.0°F (1922) | 37.9°F (1908) | 0.78 in (2002) |
| September 4 | 95.0°F (1922) | 39.0°F (1974) | 1.11 in (1949) |
| September 5 | 97.0°F (1912) | 39.0°F (1974) | 1.18 in (1973) |
| September 6 | 102.0°F (1922) | 37.0°F (1902) | 0.63 in (1920) |
| September 7 | 95.0°F (1913) | 37.9°F (1986) | 1.38 in (2001) |
| September 8 | 100.0°F (1922) | 41.0°F (1968) | 2.00 in (1941) |
| September 9 | 96.1°F (1978) | 41.0°F (1986) | 2.45 in (1985) |
| September 10 | 96.1°F (1908) | 36.0°F (1917) | 1.44 in (1962) |
| September 11 | 100.0°F (1908) | 35.1°F (1917) | 3.54 in (1986) |
| September 12 | 95.0°F (1908) | 37.9°F (1967) | 1.80 in (2000) |
| September 13 | 90.0°F (1998) | 36.0°F (1953) | 2.14 in (1915) |
| September 14 | 91.0°F (2005) | 36.0°F (1902) | 3.05 in (1961) |
| September 15 | 89.1°F (1991) | 35.1°F (1904) | 1.35 in (1912) |
| September 16 | 93.0°F (1906) | 30.9°F (1916) | 1.75 in (1903) |
| September 17 | 93.0°F (1906) | 36.0°F (1916) | 1.60 in (1997) |
| September 18 | 93.9°F (1908) | 36.0°F (1901) | 2.20 in (1972) |
| September 19 | 97.0°F (1908) | 30.0°F (1901) | 1.20 in (1960) |
| September 20 | 95.0°F (1908) | 30.9°F (1956) | 2.35 in (1963) |
| September 21 | 95.0°F (1908) | 35.1°F (1901) | 3.55 in (1947) |
| September 22 | 89.1°F (1920) | 30.0°F (1974) | 1.50 in (1909) |
| September 23 | 90.0°F (1908) | 28.9°F (1913) | 3.81 in (1986) |
| September 24 | 91.0°F (1908) | 28.0°F (1976) | 1.78 in (1968) |
| September 25 | 91.9°F (1920) | 27.0°F (1942) | 3.05 in (1986) |
| September 26 | 90.0°F (1920) | 30.9°F (1991) | 1.62 in (1915) |
| September 27 | 86.0°F (1946) | 30.0°F (1942) | 1.88 in (1986) |
| September 28 | 90.0°F (1905) | 28.0°F (1942) | 3.00 in (1999) |
| September 29 | 93.0°F (1953) | 30.0°F (1942) | 2.20 in (1906) |
| September 30 | 86.0°F (1922) | 28.9°F (1984) | 2.19 in (1973) |