July weather in Niantic, IL
The average temperature in Niantic in July is 75.6°F (66.5°F–84.7°F). Average precipitation: 4.00 inches.
July is a summer month in Niantic, and is warmer than the annual average of 53°F. Daily temperatures swing about 18.2°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 14h 34m. For travel, July is a comfortable month to visit.
Avg High
84.7°F
Avg Low
66.5°F
Precipitation
4.00 in
Daylight
14h 34m
July records in Niantic
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| July 1 | 106.0°F (1931) | 48.0°F (1924) | 2.41 in (2018) |
| July 2 | 105.1°F (1925) | 45.0°F (1904) | 2.32 in (1978) |
| July 3 | 102.0°F (1925) | 48.0°F (1930) | 2.51 in (2008) |
| July 4 | 104.0°F (1936) | 46.0°F (1940) | 1.90 in (2009) |
| July 5 | 104.0°F (1936) | 48.9°F (1915) | 2.03 in (1981) |
| July 6 | 105.1°F (1936) | 46.9°F (1972) | 2.27 in (1929) |
| July 7 | 106.0°F (1936) | 48.0°F (1983) | 2.45 in (1900) |
| July 8 | 106.0°F (1936) | 46.9°F (1901) | 2.63 in (1942) |
| July 9 | 102.9°F (1936) | 48.0°F (1961) | 2.59 in (2024) |
| July 10 | 106.0°F (1936) | 46.9°F (1963) | 3.85 in (1971) |
| July 11 | 107.1°F (1936) | 46.0°F (1898) | 2.05 in (1958) |
| July 12 | 108.0°F (1954) | 48.9°F (1898) | 2.42 in (1903) |
| July 13 | 108.0°F (1936) | 46.0°F (1975) | 1.57 in (1962) |
| July 14 | 113.0°F (1954) | 46.9°F (1967) | 3.03 in (1955) |
| July 15 | 108.0°F (1936) | 45.0°F (1930) | 2.34 in (1906) |
| July 16 | 100.9°F (1931) | 51.1°F (1930) | 3.10 in (2024) |
| July 17 | 102.9°F (1936) | 45.0°F (2009) | 2.40 in (1938) |
| July 18 | 108.0°F (1954) | 46.9°F (1979) | 1.22 in (1902) |
| July 19 | 104.0°F (1980) | 48.0°F (1909) | 2.85 in (1896) |
| July 20 | 104.0°F (1934) | 51.1°F (1929) | 3.61 in (1973) |
| July 21 | 106.0°F (1901) | 48.0°F (1970) | 3.07 in (1973) |
| July 22 | 109.0°F (1901) | 46.0°F (1947) | 1.64 in (1990) |
| July 23 | 106.0°F (1934) | 48.9°F (1947) | 1.47 in (1961) |
| July 24 | 107.1°F (1934) | 50.0°F (1906) | 2.15 in (1975) |
| July 25 | 104.0°F (1934) | 51.1°F (1911) | 2.07 in (1979) |
| July 26 | 104.0°F (1952) | 48.0°F (1911) | 5.11 in (1992) |
| July 27 | 108.0°F (1952) | 48.9°F (1962) | 1.36 in (1968) |
| July 28 | 107.1°F (1930) | 51.1°F (1994) | 1.39 in (1907) |
| July 29 | 104.0°F (1916) | 50.0°F (1925) | 0.97 in (2018) |
| July 30 | 102.9°F (1913) | 52.0°F (1899) | 2.74 in (1992) |
| July 31 | 105.1°F (1913) | 50.0°F (1895) | 2.25 in (1915) |