July weather in Walnut, IL
The average temperature in Walnut in July is 73.4°F (63.4°F–83.3°F). Average precipitation: 3.94 inches.
July is a summer month in Walnut, and is warmer than the annual average of 49.3°F. Daily temperatures swing about 19.9°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 14h 44m. For travel, July is a comfortable month to visit.
Avg High
83.3°F
Avg Low
63.4°F
Precipitation
3.94 in
Daylight
14h 44m
July records in Walnut
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| July 1 | 107.1°F (1931) | 45.0°F (2001) | 1.98 in (2014) |
| July 2 | 99.0°F (1911) | 44.1°F (1904) | 1.98 in (1956) |
| July 3 | 102.0°F (1911) | 46.0°F (1915) | 1.73 in (1899) |
| July 4 | 100.9°F (1911) | 46.0°F (1967) | 1.61 in (1973) |
| July 5 | 104.0°F (1936) | 46.0°F (1972) | 1.69 in (2018) |
| July 6 | 105.1°F (1936) | 46.9°F (1983) | 2.91 in (1953) |
| July 7 | 105.1°F (1936) | 46.9°F (1984) | 1.91 in (1918) |
| July 8 | 104.0°F (1936) | 46.9°F (1922) | 2.74 in (1907) |
| July 9 | 102.9°F (1897) | 48.0°F (1895) | 1.26 in (1902) |
| July 10 | 105.1°F (1901) | 50.0°F (1945) | 3.12 in (1922) |
| July 11 | 109.0°F (1936) | 48.0°F (1945) | 1.36 in (2008) |
| July 12 | 108.0°F (1936) | 50.0°F (1918) | 1.90 in (1982) |
| July 13 | 108.0°F (1936) | 46.9°F (1940) | 1.49 in (1957) |
| July 14 | 111.0°F (1936) | 48.0°F (1926) | 2.10 in (1962) |
| July 15 | 106.0°F (1936) | 46.0°F (1930) | 1.20 in (1972) |
| July 16 | 102.0°F (1894) | 51.1°F (1912) | 2.41 in (1902) |
| July 17 | 100.9°F (1894) | 45.0°F (1896) | 1.93 in (1903) |
| July 18 | 102.0°F (1894) | 46.9°F (1924) | 2.21 in (1996) |
| July 19 | 102.0°F (1897) | 48.9°F (1929) | 1.77 in (1900) |
| July 20 | 102.9°F (1901) | 50.0°F (1929) | 0.88 in (1990) |
| July 21 | 108.0°F (1901) | 48.0°F (1894) | 3.66 in (1948) |
| July 22 | 102.9°F (1901) | 46.9°F (1947) | 4.70 in (2017) |
| July 23 | 105.1°F (1901) | 48.9°F (1925) | 3.42 in (1941) |
| July 24 | 107.1°F (1901) | 50.0°F (1904) | 2.47 in (2001) |
| July 25 | 107.1°F (1940) | 46.9°F (1962) | 0.80 in (1948) |
| July 26 | 106.0°F (1936) | 46.9°F (1911) | 1.29 in (1981) |
| July 27 | 102.9°F (1916) | 50.0°F (1971) | 2.92 in (1938) |
| July 28 | 104.0°F (1916) | 48.9°F (1925) | 1.58 in (2023) |
| July 29 | 104.0°F (1913) | 48.0°F (1981) | 1.95 in (1901) |
| July 30 | 105.1°F (1913) | 46.0°F (1971) | 1.63 in (1970) |
| July 31 | 102.0°F (1988) | 45.0°F (1900) | 2.91 in (2025) |