October weather in Lake St. Louis, MO
The average temperature in Lake St. Louis in October is 56.9°F (45.6°F–68.3°F). Average precipitation: 3.37 inches.
October is a fall month in Lake St. Louis, and is warmer than the annual average of 55.2°F. Daily temperatures swing about 22.7°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 10h 58m. For travel, October is a comfortable month to visit.
Avg High
68.3°F
Avg Low
45.6°F
Precipitation
3.37 in
Daylight
10h 58m
October records in Lake St. Louis
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 91.9°F (2023) | 28.0°F (1985) | 1.82 in (1962) |
| October 2 | 91.0°F (2019) | 27.0°F (1974) | 0.91 in (2009) |
| October 3 | 91.0°F (1963) | 24.1°F (1985) | 1.31 in (2014) |
| October 4 | 91.9°F (2006) | 27.0°F (1989) | 3.25 in (1986) |
| October 5 | 90.0°F (1967) | 27.0°F (1980) | 0.97 in (2000) |
| October 6 | 89.1°F (1981) | 28.9°F (1979) | 1.26 in (1976) |
| October 7 | 90.0°F (1963) | 27.0°F (1989) | 2.17 in (1990) |
| October 8 | 93.0°F (1963) | 27.0°F (1987) | 2.28 in (1977) |
| October 9 | 87.1°F (2007) | 30.0°F (2000) | 2.84 in (2009) |
| October 10 | 86.0°F (1962) | 24.1°F (1964) | 1.78 in (1958) |
| October 11 | 95.0°F (1963) | 28.0°F (1964) | 1.49 in (2019) |
| October 12 | 93.9°F (1963) | 23.0°F (1987) | 2.64 in (1969) |
| October 13 | 89.1°F (1962) | 21.9°F (1995) | 1.80 in (1962) |
| October 14 | 89.1°F (1975) | 25.0°F (1979) | 1.41 in (1970) |
| October 15 | 88.0°F (2017) | 30.9°F (1961) | 1.65 in (1966) |
| October 16 | 91.0°F (1963) | 10.9°F (1995) | 1.54 in (1967) |
| October 17 | 86.0°F (1963) | 25.0°F (1976) | 1.83 in (2006) |
| October 18 | 89.1°F (2016) | 19.9°F (1976) | 1.90 in (2004) |
| October 19 | 84.0°F (1965) | 23.0°F (1972) | 1.79 in (2025) |
| October 20 | 87.1°F (1963) | 24.1°F (1972) | 2.22 in (2016) |
| October 21 | 87.1°F (2003) | 25.0°F (1960) | 1.31 in (1983) |
| October 22 | 87.1°F (1963) | 19.9°F (1976) | 0.71 in (1996) |
| October 23 | 86.0°F (1963) | 23.0°F (1976) | 2.39 in (2009) |
| October 24 | 84.0°F (1963) | 19.0°F (1981) | 1.33 in (1997) |
| October 25 | 84.9°F (2012) | 25.0°F (1981) | 0.99 in (1991) |
| October 26 | 82.9°F (1985) | 26.1°F (1962) | 1.86 in (2022) |
| October 27 | 90.0°F (1985) | 24.1°F (1957) | 1.10 in (2019) |
| October 28 | 84.0°F (2014) | 19.9°F (1976) | 1.17 in (1970) |
| October 29 | 81.0°F (1966) | 21.0°F (1976) | 0.80 in (1998) |
| October 30 | 84.0°F (2004) | 19.9°F (1980) | 2.06 in (2009) |
| October 31 | 82.9°F (1971) | 27.0°F (1993) | 0.80 in (1973) |