August weather in Markham, IL
The average temperature in Markham in August is 72.0°F (62.0°F–82.0°F). Average precipitation: 4.02 inches.
August is a summer month in Markham, and is warmer than the annual average of 49.8°F. Daily temperatures swing about 20°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 13h 41m. For travel, August is a comfortable month to visit.
Avg High
82.0°F
Avg Low
62.0°F
Precipitation
4.02 in
Daylight
13h 41m
August records in Markham
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 96.1°F (2006) | 51.1°F (1977) | 0.97 in (1961) |
| August 2 | 102.9°F (1988) | 54.0°F (1968) | 1.67 in (2003) |
| August 3 | 99.0°F (1991) | 50.0°F (1976) | 2.34 in (2001) |
| August 4 | 97.0°F (1956) | 46.9°F (1966) | 2.15 in (1998) |
| August 5 | 98.1°F (1988) | 48.9°F (1972) | 1.60 in (2008) |
| August 6 | 95.0°F (1968) | 48.9°F (1994) | 2.22 in (1976) |
| August 7 | 93.9°F (1968) | 50.0°F (1976) | 1.05 in (2000) |
| August 8 | 95.0°F (1984) | 50.0°F (1976) | 1.50 in (1991) |
| August 9 | 99.0°F (1988) | 46.0°F (1972) | 1.67 in (1979) |
| August 10 | 95.0°F (1984) | 50.0°F (1972) | 2.62 in (1984) |
| August 11 | 93.0°F (2010) | 48.0°F (1982) | 1.26 in (1988) |
| August 12 | 91.9°F (1988) | 46.0°F (1967) | 1.22 in (1972) |
| August 13 | 95.0°F (1988) | 46.9°F (1967) | 1.46 in (2025) |
| August 14 | 93.9°F (1988) | 46.0°F (1964) | 1.00 in (1973) |
| August 15 | 93.0°F (1957) | 46.9°F (1979) | 2.33 in (1958) |
| August 16 | 96.1°F (1988) | 45.0°F (1979) | 4.95 in (1968) |
| August 17 | 100.9°F (1988) | 48.0°F (1976) | 2.42 in (1987) |
| August 18 | 99.0°F (1988) | 44.1°F (1963) | 2.00 in (2015) |
| August 19 | 96.1°F (1988) | 48.0°F (1992) | 2.31 in (2006) |
| August 20 | 96.1°F (1962) | 42.1°F (1992) | 1.70 in (2009) |
| August 21 | 96.1°F (1955) | 48.0°F (1956) | 1.80 in (2016) |
| August 22 | 95.0°F (1959) | 50.0°F (1953) | 1.55 in (1972) |
| August 23 | 93.9°F (1959) | 48.0°F (1952) | 1.50 in (1973) |
| August 24 | 95.0°F (2023) | 45.0°F (1952) | 1.28 in (2006) |
| August 25 | 96.1°F (2023) | 45.0°F (1958) | 1.08 in (1998) |
| August 26 | 95.0°F (1953) | 46.9°F (1964) | 2.53 in (1987) |
| August 27 | 95.0°F (1953) | 43.0°F (1968) | 3.25 in (1965) |
| August 28 | 95.0°F (1953) | 41.0°F (1986) | 1.45 in (2004) |
| August 29 | 96.1°F (1953) | 41.0°F (1986) | 3.13 in (2006) |
| August 30 | 96.1°F (1953) | 39.9°F (2003) | 1.65 in (1993) |
| August 31 | 98.1°F (1953) | 42.1°F (2003) | 1.45 in (1980) |