July weather in St. Louis, MO
The average temperature in St. Louis in July is 80.6°F (71.6°F–89.6°F). Average precipitation: 4.21 inches.
July is a summer month in St. Louis, and is warmer than the annual average of 58°F. Daily temperatures swing about 18°F between overnight low and afternoon high. Daylight averages about 14h 27m. For travel, July is hot.
Avg High
89.6°F
Avg Low
71.6°F
Precipitation
4.21 in
Daylight
14h 27m
July records in St. Louis
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| July 1 | 105.1°F (2012) | 60.1°F (1988) | 1.31 in (1996) |
| July 2 | 102.9°F (2012) | 57.9°F (1995) | 1.79 in (2023) |
| July 3 | 100.9°F (2012) | 60.1°F (2014) | 2.20 in (1992) |
| July 4 | 100.9°F (2012) | 60.1°F (2014) | 2.10 in (1998) |
| July 5 | 104.0°F (2012) | 55.9°F (1997) | 2.12 in (2009) |
| July 6 | 105.1°F (2012) | 54.0°F (1972) | 2.44 in (2004) |
| July 7 | 106.0°F (2012) | 60.1°F (1972) | 2.00 in (1987) |
| July 8 | 106.0°F (2012) | 60.1°F (2015) | 2.33 in (1994) |
| July 9 | 99.0°F (1971) | 59.0°F (2015) | 1.12 in (2010) |
| July 10 | 98.1°F (1990) | 59.0°F (1996) | 2.52 in (1991) |
| July 11 | 99.0°F (1976) | 54.0°F (1975) | 0.91 in (2021) |
| July 12 | 100.0°F (2011) | 61.0°F (1975) | 1.49 in (2005) |
| July 13 | 100.9°F (2017) | 53.1°F (1975) | 1.39 in (2023) |
| July 14 | 100.0°F (1977) | 57.0°F (1990) | 0.79 in (2016) |
| July 15 | 100.0°F (1988) | 57.9°F (2014) | 2.15 in (2018) |
| July 16 | 100.9°F (1988) | 57.9°F (2014) | 1.02 in (1993) |
| July 17 | 100.0°F (1988) | 61.0°F (1987) | 0.75 in (2023) |
| July 18 | 100.9°F (2012) | 63.0°F (1976) | 0.96 in (2019) |
| July 19 | 106.0°F (2012) | 60.1°F (1976) | 1.42 in (2003) |
| July 20 | 102.9°F (2012) | 61.0°F (2009) | 1.11 in (1988) |
| July 21 | 100.0°F (2017) | 59.0°F (1970) | 2.59 in (2025) |
| July 22 | 102.9°F (2011) | 60.1°F (1970) | 5.32 in (2019) |
| July 23 | 102.9°F (2017) | 63.0°F (1970) | 0.88 in (1998) |
| July 24 | 105.1°F (2012) | 62.1°F (1990) | 0.82 in (1973) |
| July 25 | 106.0°F (2012) | 57.9°F (1975) | 2.33 in (2021) |
| July 26 | 107.1°F (2012) | 60.1°F (2003) | 8.73 in (2022) |
| July 27 | 102.9°F (1999) | 57.9°F (2004) | 1.38 in (1972) |
| July 28 | 100.0°F (2011) | 55.0°F (2013) | 1.44 in (2000) |
| July 29 | 100.9°F (2011) | 57.9°F (2014) | 3.34 in (2022) |
| July 30 | 105.1°F (1999) | 55.9°F (1992) | 2.95 in (2004) |
| July 31 | 102.9°F (1999) | 57.9°F (1971) | 0.77 in (2010) |