July weather in Markham, IL
The average temperature in Markham in July is 73.9°F (63.8°F–83.9°F). Average precipitation: 4.73 inches.
July is a summer month in Markham, and is warmer than the annual average of 49.8°F. Daily temperatures swing about 20.1°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 14h 44m. For travel, July is a comfortable month to visit.
Avg High
83.9°F
Avg Low
63.8°F
Precipitation
4.73 in
Daylight
14h 44m
July records in Markham
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| July 1 | 100.0°F (1956) | 46.9°F (1965) | 2.00 in (1977) |
| July 2 | 98.1°F (1966) | 46.9°F (1988) | 3.50 in (1983) |
| July 3 | 96.1°F (1955) | 46.0°F (1988) | 1.55 in (1993) |
| July 4 | 95.0°F (1955) | 46.9°F (1963) | 1.74 in (2004) |
| July 5 | 98.1°F (1990) | 45.0°F (1972) | 1.66 in (2003) |
| July 6 | 99.0°F (1988) | 46.9°F (1983) | 2.23 in (2023) |
| July 7 | 100.0°F (1988) | 46.9°F (1983) | 2.29 in (1987) |
| July 8 | 99.0°F (1980) | 48.9°F (1954) | 1.68 in (1998) |
| July 9 | 97.0°F (1966) | 50.0°F (1961) | 2.95 in (1974) |
| July 10 | 100.0°F (1966) | 48.0°F (1963) | 1.55 in (2000) |
| July 11 | 96.1°F (1984) | 48.9°F (1978) | 1.04 in (1990) |
| July 12 | 97.0°F (1966) | 52.0°F (1973) | 2.97 in (1957) |
| July 13 | 97.0°F (1974) | 46.9°F (1975) | 2.20 in (1957) |
| July 14 | 102.0°F (1995) | 48.0°F (1967) | 0.65 in (2024) |
| July 15 | 100.9°F (1988) | 48.9°F (1967) | 1.35 in (2003) |
| July 16 | 102.0°F (1988) | 51.1°F (1967) | 1.43 in (2020) |
| July 17 | 97.0°F (1988) | 51.1°F (2014) | 1.64 in (1972) |
| July 18 | 99.0°F (2012) | 48.0°F (1979) | 6.55 in (1996) |
| July 19 | 93.9°F (2013) | 53.1°F (1971) | 2.91 in (1989) |
| July 20 | 99.0°F (1954) | 51.1°F (1971) | 1.46 in (2020) |
| July 21 | 99.0°F (1980) | 48.0°F (1970) | 3.75 in (2003) |
| July 22 | 100.0°F (2011) | 48.9°F (1970) | 2.30 in (2017) |
| July 23 | 100.0°F (1983) | 48.9°F (2003) | 1.85 in (2011) |
| July 24 | 93.9°F (1966) | 52.0°F (2000) | 2.27 in (2016) |
| July 25 | 98.1°F (2005) | 52.0°F (2013) | 1.34 in (2022) |
| July 26 | 98.1°F (2012) | 48.0°F (1962) | 1.75 in (1969) |
| July 27 | 99.0°F (1955) | 48.9°F (1977) | 1.74 in (1966) |
| July 28 | 95.0°F (1997) | 50.0°F (2013) | 2.68 in (1981) |
| July 29 | 100.0°F (1983) | 50.0°F (1981) | 1.26 in (1976) |
| July 30 | 96.1°F (1999) | 48.9°F (1956) | 1.96 in (1969) |
| July 31 | 100.0°F (1999) | 48.9°F (1971) | 1.70 in (1987) |