July weather in Joliet, IL
The average temperature in Joliet in July is 73.9°F (64.1°F–83.6°F). Average precipitation: 4.55 inches.
July is a summer month in Joliet, and is warmer than the annual average of 50.4°F. Daily temperatures swing about 19.5°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 14h 43m. For travel, July is a comfortable month to visit.
Avg High
83.6°F
Avg Low
64.1°F
Precipitation
4.55 in
Daylight
14h 43m
July records in Joliet
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| July 1 | 93.0°F (1991) | 46.9°F (2024) | 1.86 in (1977) |
| July 2 | 96.1°F (2003) | 46.9°F (2024) | 1.97 in (1983) |
| July 3 | 93.9°F (2003) | 50.0°F (2001) | 1.47 in (1958) |
| July 4 | 95.0°F (2012) | 50.0°F (2001) | 1.19 in (1979) |
| July 5 | 99.0°F (2012) | 48.0°F (2023) | 1.76 in (1971) |
| July 6 | 100.9°F (2012) | 46.9°F (1983) | 0.90 in (1953) |
| July 7 | 100.9°F (2012) | 48.0°F (1983) | 2.98 in (1954) |
| July 8 | 102.0°F (2012) | 51.1°F (1983) | 2.48 in (1994) |
| July 9 | 97.0°F (1988) | 55.0°F (1984) | 1.85 in (1951) |
| July 10 | 97.0°F (1984) | 54.0°F (1996) | 3.10 in (2000) |
| July 11 | 99.0°F (1976) | 52.0°F (1978) | 1.25 in (2017) |
| July 12 | 96.1°F (1976) | 55.0°F (1978) | 1.15 in (1989) |
| July 13 | 98.1°F (1981) | 51.1°F (2024) | 6.73 in (1957) |
| July 14 | 102.9°F (1995) | 50.0°F (2024) | 0.99 in (1963) |
| July 15 | 100.9°F (1976) | 50.0°F (2024) | 1.60 in (2024) |
| July 16 | 100.0°F (1988) | 53.1°F (2014) | 1.00 in (2022) |
| July 17 | 95.0°F (2012) | 52.0°F (1976) | 2.35 in (1943) |
| July 18 | 99.0°F (2012) | 50.0°F (1979) | 13.60 in (1996) |
| July 19 | 98.1°F (1991) | 48.0°F (2009) | 2.52 in (2007) |
| July 20 | 98.1°F (2011) | 48.0°F (2009) | 2.00 in (2020) |
| July 21 | 98.1°F (1980) | 48.0°F (2009) | 4.87 in (1976) |
| July 22 | 100.0°F (1991) | 48.9°F (2009) | 2.59 in (1961) |
| July 23 | 100.9°F (1983) | 48.9°F (2009) | 1.95 in (1976) |
| July 24 | 93.9°F (1999) | 54.0°F (2000) | 1.54 in (2011) |
| July 25 | 99.0°F (1986) | 50.0°F (1982) | 1.90 in (2010) |
| July 26 | 100.0°F (1986) | 53.1°F (1977) | 1.67 in (1981) |
| July 27 | 98.1°F (1997) | 50.0°F (1977) | 2.62 in (1969) |
| July 28 | 93.9°F (1988) | 51.1°F (2013) | 2.37 in (2006) |
| July 29 | 100.0°F (1983) | 50.0°F (2013) | 1.80 in (1945) |
| July 30 | 97.0°F (1999) | 52.0°F (2013) | 1.46 in (1970) |
| July 31 | 100.9°F (1999) | 55.0°F (1978) | 2.23 in (1979) |