August weather in River Forest, IN
The average temperature in River Forest in August is 72.8°F (63.2°F–82.4°F). Average precipitation: 3.39 inches.
August is a summer month in River Forest, and is warmer than the annual average of 52.6°F. Daily temperatures swing about 19.2°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 13h 35m. For travel, August is a comfortable month to visit.
Avg High
82.4°F
Avg Low
63.2°F
Precipitation
3.39 in
Daylight
13h 35m
August records in River Forest
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 97.0°F (1953) | 46.0°F (1895) | 3.70 in (1926) |
| August 2 | 96.1°F (1991) | 43.0°F (1895) | 1.80 in (1921) |
| August 3 | 97.0°F (1897) | 46.0°F (1912) | 1.13 in (2015) |
| August 4 | 98.1°F (1964) | 45.0°F (1912) | 1.98 in (1995) |
| August 5 | 102.0°F (1918) | 46.0°F (1912) | 1.50 in (1899) |
| August 6 | 100.9°F (1918) | 46.9°F (1957) | 2.80 in (1944) |
| August 7 | 99.0°F (1918) | 48.0°F (1994) | 1.85 in (1963) |
| August 8 | 95.0°F (1901) | 48.9°F (1976) | 1.94 in (1898) |
| August 9 | 99.0°F (1934) | 46.0°F (1964) | 1.40 in (1968) |
| August 10 | 100.9°F (1911) | 46.0°F (1972) | 2.01 in (1969) |
| August 11 | 97.0°F (1911) | 48.0°F (1991) | 2.10 in (1977) |
| August 12 | 100.0°F (1918) | 46.0°F (2004) | 2.60 in (1944) |
| August 13 | 100.0°F (1936) | 44.1°F (1964) | 1.43 in (1912) |
| August 14 | 99.0°F (1936) | 41.0°F (1964) | 1.95 in (1905) |
| August 15 | 97.0°F (1988) | 41.0°F (1964) | 3.33 in (1947) |
| August 16 | 99.0°F (1988) | 30.0°F (1982) | 1.80 in (1952) |
| August 17 | 100.9°F (1988) | 43.0°F (1897) | 1.03 in (1921) |
| August 18 | 98.1°F (1988) | 48.0°F (1963) | 3.09 in (1900) |
| August 19 | 100.0°F (1936) | 48.0°F (1896) | 1.83 in (2002) |
| August 20 | 97.0°F (1983) | 46.9°F (1897) | 2.70 in (2007) |
| August 21 | 100.0°F (1936) | 46.9°F (1956) | 3.00 in (2014) |
| August 22 | 100.9°F (1936) | 45.0°F (1956) | 1.27 in (2014) |
| August 23 | 97.0°F (1936) | 44.1°F (1923) | 2.12 in (1900) |
| August 24 | 97.0°F (1936) | 45.0°F (1987) | 1.57 in (1919) |
| August 25 | 96.1°F (1936) | 46.9°F (1923) | 1.65 in (1905) |
| August 26 | 96.1°F (1948) | 46.0°F (1945) | 1.99 in (1962) |
| August 27 | 97.0°F (1953) | 44.1°F (1910) | 2.24 in (1997) |
| August 28 | 99.0°F (1953) | 42.1°F (1986) | 2.12 in (1909) |
| August 29 | 100.0°F (1953) | 39.9°F (1986) | 1.74 in (2003) |
| August 30 | 99.0°F (1953) | 43.0°F (1976) | 2.50 in (1981) |
| August 31 | 99.0°F (1951) | 39.0°F (1915) | 0.95 in (2003) |