July weather in Quincy, IL
The average temperature in Quincy in July is 77.4°F (67.6°F–87.2°F). Average precipitation: 3.64 inches.
July is a summer month in Quincy, and is warmer than the annual average of 53.7°F. Daily temperatures swing about 19.6°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 14h 34m. For travel, July is a comfortable month to visit.
Avg High
87.2°F
Avg Low
67.6°F
Precipitation
3.64 in
Daylight
14h 34m
July records in Quincy
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| July 1 | 97.0°F (2012) | 53.1°F (1977) | 6.06 in (1993) |
| July 2 | 98.1°F (1980) | 55.0°F (1977) | 3.27 in (1978) |
| July 3 | 98.1°F (1980) | 54.0°F (1945) | 4.15 in (1982) |
| July 4 | 98.1°F (1990) | 52.0°F (1940) | 2.20 in (1981) |
| July 5 | 100.0°F (1990) | 54.0°F (1940) | 1.37 in (1962) |
| July 6 | 100.9°F (2012) | 52.0°F (1983) | 1.73 in (1963) |
| July 7 | 102.0°F (2012) | 52.0°F (1983) | 1.59 in (1938) |
| July 8 | 102.0°F (2012) | 52.0°F (1983) | 3.12 in (2022) |
| July 9 | 100.0°F (1989) | 55.9°F (1983) | 1.37 in (2015) |
| July 10 | 98.1°F (1946) | 57.9°F (1945) | 1.61 in (1991) |
| July 11 | 102.9°F (1984) | 54.0°F (1945) | 1.12 in (1991) |
| July 12 | 99.0°F (1980) | 55.9°F (1996) | 1.47 in (2015) |
| July 13 | 98.1°F (1980) | 57.9°F (1940) | 2.80 in (1937) |
| July 14 | 100.0°F (1977) | 52.0°F (1940) | 2.20 in (2025) |
| July 15 | 100.9°F (1980) | 57.0°F (1990) | 3.03 in (1958) |
| July 16 | 102.0°F (1980) | 57.0°F (2014) | 1.18 in (2020) |
| July 17 | 99.0°F (2006) | 57.0°F (1938) | 1.62 in (1946) |
| July 18 | 98.1°F (2012) | 57.0°F (2014) | 1.33 in (1972) |
| July 19 | 102.0°F (2012) | 54.0°F (1938) | 1.45 in (2015) |
| July 20 | 102.0°F (1980) | 55.0°F (1979) | 5.83 in (1949) |
| July 21 | 102.9°F (2005) | 53.1°F (1944) | 1.73 in (1949) |
| July 22 | 100.0°F (2005) | 54.0°F (1944) | 1.94 in (1951) |
| July 23 | 100.9°F (1941) | 55.0°F (1947) | 2.46 in (1961) |
| July 24 | 104.0°F (2012) | 55.0°F (1938) | 2.00 in (1967) |
| July 25 | 105.1°F (2005) | 57.0°F (1985) | 2.10 in (2021) |
| July 26 | 104.0°F (2005) | 54.0°F (1977) | 2.20 in (2014) |
| July 27 | 100.0°F (1997) | 55.0°F (1977) | 2.25 in (1981) |
| July 28 | 100.9°F (1941) | 52.0°F (2013) | 3.45 in (1957) |
| July 29 | 102.9°F (2023) | 52.0°F (2013) | 1.00 in (1967) |
| July 30 | 102.0°F (1999) | 52.0°F (2013) | 1.65 in (2018) |
| July 31 | 104.0°F (1980) | 54.0°F (1977) | 2.53 in (1985) |