July weather in Rock Island, IL
The average temperature in Rock Island in July is 75.5°F (64.9°F–86.1°F). Average precipitation: 4.23 inches.
July is a summer month in Rock Island, and is warmer than the annual average of 51.2°F. Daily temperatures swing about 21.2°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
86.1°F
Avg Low
64.9°F
Precipitation
4.23 in
Daylight
14h 43m
July records in Rock Island
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| July 1 | 102.9°F (1956) | 48.0°F (1988) | 0.96 in (1967) |
| July 2 | 98.1°F (1970) | 50.0°F (1959) | 1.34 in (1953) |
| July 3 | 98.1°F (1949) | 46.9°F (1968) | 0.97 in (1951) |
| July 4 | 99.0°F (1990) | 48.9°F (1967) | 3.56 in (2007) |
| July 5 | 97.0°F (1966) | 46.9°F (1972) | 2.29 in (1953) |
| July 6 | 100.0°F (2012) | 46.9°F (1979) | 3.55 in (1982) |
| July 7 | 104.0°F (2012) | 48.0°F (1984) | 2.23 in (1956) |
| July 8 | 97.0°F (1990) | 52.0°F (1954) | 3.38 in (1986) |
| July 9 | 99.0°F (1984) | 51.1°F (1963) | 1.30 in (2020) |
| July 10 | 100.0°F (1989) | 50.0°F (1996) | 5.08 in (1971) |
| July 11 | 98.1°F (1966) | 46.0°F (1945) | 2.02 in (2025) |
| July 12 | 98.1°F (1954) | 53.1°F (1975) | 1.55 in (1971) |
| July 13 | 100.0°F (1995) | 51.1°F (1967) | 1.82 in (1992) |
| July 14 | 99.0°F (1976) | 48.0°F (1975) | 2.76 in (1962) |
| July 15 | 102.0°F (1988) | 48.0°F (1967) | 1.70 in (1992) |
| July 16 | 99.0°F (2006) | 51.1°F (2014) | 0.94 in (1943) |
| July 17 | 100.0°F (2006) | 52.0°F (2014) | 3.85 in (1969) |
| July 18 | 100.0°F (1966) | 54.0°F (1945) | 2.84 in (1963) |
| July 19 | 100.0°F (2011) | 52.0°F (2003) | 2.57 in (1963) |
| July 20 | 100.0°F (1983) | 50.0°F (2009) | 1.65 in (2003) |
| July 21 | 100.9°F (1983) | 50.0°F (1944) | 3.45 in (1948) |
| July 22 | 102.9°F (1983) | 46.0°F (1947) | 3.11 in (2017) |
| July 23 | 102.9°F (2012) | 48.9°F (1947) | 1.65 in (1968) |
| July 24 | 102.9°F (2005) | 54.0°F (1947) | 2.44 in (2009) |
| July 25 | 102.0°F (2012) | 54.0°F (1991) | 1.80 in (1992) |
| July 26 | 99.0°F (1955) | 48.9°F (1962) | 3.13 in (1966) |
| July 27 | 100.0°F (1955) | 50.0°F (1962) | 1.82 in (1961) |
| July 28 | 102.0°F (1983) | 53.1°F (1981) | 1.42 in (1966) |
| July 29 | 100.0°F (1955) | 48.9°F (1971) | 1.88 in (1970) |
| July 30 | 100.0°F (1955) | 46.0°F (1971) | 1.34 in (1959) |
| July 31 | 100.9°F (1988) | 46.0°F (1971) | 1.14 in (1964) |