August weather in Flanagan, IL
The average temperature in Flanagan in August is 73.0°F (61.7°F–84.3°F). Average precipitation: 3.48 inches.
August is a summer month in Flanagan, and is warmer than the annual average of 51.3°F. Daily temperatures swing about 22.6°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 13h 38m. For travel, August is a comfortable month to visit.
Avg High
84.3°F
Avg Low
61.7°F
Precipitation
3.48 in
Daylight
13h 38m
August records in Flanagan
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 99.0°F (1897) | 48.9°F (1990) | 1.67 in (1911) |
| August 2 | 100.9°F (1988) | 48.0°F (1920) | 2.73 in (1932) |
| August 3 | 100.0°F (1908) | 45.0°F (1950) | 5.01 in (1943) |
| August 4 | 102.0°F (1916) | 48.0°F (1907) | 1.57 in (1965) |
| August 5 | 104.0°F (1918) | 48.0°F (1972) | 4.10 in (1902) |
| August 6 | 100.9°F (1918) | 45.0°F (1994) | 4.50 in (2023) |
| August 7 | 99.0°F (1914) | 45.0°F (1994) | 2.82 in (1939) |
| August 8 | 102.0°F (1913) | 46.9°F (1904) | 0.69 in (1954) |
| August 9 | 102.0°F (1913) | 46.0°F (1972) | 1.93 in (1931) |
| August 10 | 99.0°F (1916) | 46.0°F (1972) | 1.27 in (1966) |
| August 11 | 98.1°F (1941) | 44.1°F (1982) | 3.15 in (1916) |
| August 12 | 100.0°F (1909) | 43.0°F (1982) | 1.72 in (1927) |
| August 13 | 102.9°F (1936) | 42.1°F (1964) | 2.21 in (2016) |
| August 14 | 98.1°F (1909) | 45.0°F (1964) | 1.39 in (2010) |
| August 15 | 98.1°F (1936) | 45.0°F (1963) | 3.45 in (1981) |
| August 16 | 102.0°F (1913) | 46.9°F (1992) | 2.00 in (1898) |
| August 17 | 102.0°F (1988) | 48.0°F (1971) | 3.33 in (1997) |
| August 18 | 105.1°F (1936) | 43.0°F (1963) | 2.00 in (2015) |
| August 19 | 100.9°F (1914) | 46.9°F (1950) | 1.82 in (2006) |
| August 20 | 100.9°F (1916) | 37.9°F (1950) | 3.00 in (1924) |
| August 21 | 100.9°F (1983) | 39.9°F (1950) | 1.69 in (1960) |
| August 22 | 102.0°F (1936) | 44.1°F (1923) | 2.12 in (2014) |
| August 23 | 102.0°F (1947) | 46.0°F (1904) | 1.80 in (1979) |
| August 24 | 100.9°F (1936) | 43.0°F (1942) | 2.02 in (1989) |
| August 25 | 97.0°F (1959) | 42.1°F (1917) | 1.35 in (2016) |
| August 26 | 100.0°F (1936) | 42.1°F (1910) | 1.47 in (1954) |
| August 27 | 99.0°F (1976) | 45.0°F (1904) | 2.00 in (1903) |
| August 28 | 100.0°F (2024) | 37.9°F (1986) | 1.47 in (1957) |
| August 29 | 97.0°F (1925) | 39.9°F (1986) | 2.08 in (1951) |
| August 30 | 98.1°F (1945) | 41.0°F (1915) | 2.61 in (1955) |
| August 31 | 98.1°F (1943) | 39.0°F (1915) | 2.25 in (1932) |