October weather in St. Johns, IL
The average temperature in St. Johns in October is 57.5°F (46.0°F–69.0°F). Average precipitation: 3.66 inches. Average snowfall is 0.2 inches.
October is a fall month in St. Johns, and is warmer than the annual average of 56°F. Daily temperatures swing about 23°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 10h 59m. For travel, October is a comfortable month to visit.
Avg High
69.0°F
Avg Low
46.0°F
Precipitation
3.66 in
Snow
0.2 in
October records in St. Johns
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 93.9°F (1910) | 32.0°F (1920) | 1.76 in (1988) |
| October 2 | 96.1°F (1953) | 28.9°F (1985) | 1.67 in (1993) |
| October 3 | 93.9°F (1922) | 30.9°F (1961) | 0.95 in (1902) |
| October 4 | 93.9°F (1922) | 0.0°F (1988) | 4.60 in (1910) |
| October 5 | 93.9°F (1938) | 28.9°F (1901) | 2.20 in (1910) |
| October 6 | 91.9°F (1939) | 28.9°F (1980) | 1.40 in (1949) |
| October 7 | 93.9°F (1939) | 28.0°F (1935) | 1.48 in (1922) |
| October 8 | 93.0°F (1939) | 27.0°F (1987) | 2.87 in (2009) |
| October 9 | 91.0°F (1939) | 24.1°F (1917) | 1.47 in (1914) |
| October 10 | 91.9°F (1928) | 28.0°F (1925) | 1.55 in (2017) |
| October 11 | 93.9°F (1963) | 25.0°F (1906) | 2.24 in (2001) |
| October 12 | 91.0°F (1928) | 27.0°F (1917) | 2.36 in (1949) |
| October 13 | 91.9°F (1928) | 23.0°F (1917) | 2.47 in (2001) |
| October 14 | 91.9°F (1899) | 24.1°F (1979) | 0.65 in (1974) |
| October 15 | 91.0°F (1938) | 28.0°F (1939) | 1.46 in (1941) |
| October 16 | 89.1°F (1938) | 28.9°F (1991) | 3.46 in (1928) |
| October 17 | 90.0°F (1938) | 25.0°F (1943) | 1.80 in (2012) |
| October 18 | 90.0°F (1924) | 21.9°F (1976) | 1.65 in (1923) |
| October 19 | 89.1°F (1908) | 26.1°F (1992) | 2.30 in (1926) |
| October 20 | 90.0°F (1963) | 25.0°F (1930) | 3.00 in (1984) |
| October 21 | 90.0°F (1953) | 24.1°F (1960) | 1.90 in (1945) |
| October 22 | 90.0°F (1953) | 21.0°F (1976) | 1.20 in (1945) |
| October 23 | 90.0°F (1939) | 21.9°F (1981) | 2.71 in (1951) |
| October 24 | 89.1°F (1900) | 19.9°F (1981) | 1.13 in (2001) |
| October 25 | 89.1°F (1940) | 25.0°F (2013) | 1.82 in (1934) |
| October 26 | 90.0°F (1940) | 21.0°F (1942) | 3.34 in (2019) |
| October 27 | 90.0°F (1927) | 25.0°F (1898) | 1.89 in (2006) |
| October 28 | 91.0°F (1927) | 21.0°F (1976) | 0.95 in (2023) |
| October 29 | 84.9°F (1900) | 19.9°F (1976) | 2.20 in (1926) |
| October 30 | 84.9°F (1950) | 19.9°F (1925) | 1.75 in (1942) |
| October 31 | 86.0°F (1950) | 21.9°F (1923) | 3.09 in (2013) |