September weather in Marion, IN
The average temperature in Marion in September is 64.9°F (53.3°F–76.6°F). Average precipitation: 3.39 inches.
September is a fall month in Marion, and is warmer than the annual average of 50.4°F. Daily temperatures swing about 23.3°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 15m. For travel, September is one of the best months of the year to visit.
Avg High
76.6°F
Avg Low
53.3°F
Precipitation
3.39 in
Daylight
12h 15m
September records in Marion
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 102.0°F (1951) | 39.9°F (1909) | 2.60 in (1950) |
| September 2 | 100.9°F (1913) | 37.9°F (1909) | 1.78 in (1924) |
| September 3 | 100.0°F (1913) | 37.9°F (1908) | 1.50 in (2004) |
| September 4 | 95.0°F (1925) | 43.0°F (1952) | 3.53 in (1932) |
| September 5 | 100.9°F (1899) | 39.0°F (1902) | 3.46 in (1918) |
| September 6 | 96.1°F (1912) | 39.9°F (1924) | 1.44 in (1916) |
| September 7 | 99.0°F (1939) | 39.0°F (1956) | 1.25 in (1971) |
| September 8 | 98.1°F (1900) | 37.0°F (1956) | 2.52 in (2018) |
| September 9 | 98.1°F (1897) | 37.9°F (1956) | 1.79 in (2007) |
| September 10 | 97.0°F (1900) | 36.0°F (1924) | 2.99 in (1992) |
| September 11 | 97.0°F (1897) | 34.0°F (1917) | 2.81 in (2014) |
| September 12 | 98.1°F (1897) | 35.1°F (1955) | 1.90 in (2022) |
| September 13 | 99.0°F (1897) | 35.1°F (1955) | 1.51 in (1938) |
| September 14 | 99.0°F (1939) | 32.0°F (1899) | 2.12 in (1977) |
| September 15 | 100.0°F (1939) | 34.0°F (1964) | 4.09 in (1911) |
| September 16 | 95.0°F (1897) | 32.0°F (1916) | 2.05 in (1931) |
| September 17 | 91.0°F (1927) | 35.1°F (1937) | 3.52 in (1969) |
| September 18 | 95.0°F (1955) | 30.0°F (1959) | 1.12 in (1904) |
| September 19 | 93.9°F (1948) | 30.0°F (1901) | 2.17 in (1952) |
| September 20 | 98.1°F (1963) | 34.0°F (1918) | 2.00 in (2002) |
| September 21 | 95.0°F (1908) | 30.0°F (1897) | 3.27 in (1957) |
| September 22 | 95.0°F (1895) | 30.9°F (1956) | 3.24 in (1950) |
| September 23 | 91.0°F (2017) | 30.0°F (1896) | 2.92 in (1909) |
| September 24 | 96.1°F (1908) | 28.9°F (1928) | 1.14 in (1902) |
| September 25 | 93.0°F (1900) | 32.0°F (1894) | 1.65 in (1961) |
| September 26 | 93.0°F (1908) | 28.0°F (1928) | 1.98 in (1900) |
| September 27 | 90.0°F (1998) | 33.1°F (1899) | 4.54 in (1933) |
| September 28 | 90.0°F (1905) | 28.0°F (1942) | 1.84 in (1996) |
| September 29 | 90.0°F (2025) | 30.0°F (1951) | 1.23 in (1934) |
| September 30 | 96.1°F (1953) | 28.9°F (1899) | 3.51 in (1919) |