August weather in Walnut Hill, IL
The average temperature in Walnut Hill in August is 75.3°F (63.7°F–86.9°F). Average precipitation: 3.54 inches.
August is a summer month in Walnut Hill, and is warmer than the annual average of 54.7°F. Daily temperatures swing about 23.2°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 13h 30m. For travel, August is a comfortable month to visit.
Avg High
86.9°F
Avg Low
63.7°F
Precipitation
3.54 in
Daylight
13h 30m
August records in Walnut Hill
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 102.0°F (2012) | 57.0°F (2014) | 1.06 in (2018) |
| August 2 | 99.0°F (2012) | 55.0°F (1998) | 1.84 in (2024) |
| August 3 | 100.9°F (2012) | 57.0°F (2003) | 0.69 in (2016) |
| August 4 | 100.0°F (2002) | 57.0°F (2021) | 1.03 in (1998) |
| August 5 | 100.0°F (2002) | 52.0°F (2020) | 1.37 in (2012) |
| August 6 | 100.0°F (2002) | 51.1°F (2004) | 1.20 in (2015) |
| August 7 | 96.1°F (2007) | 50.0°F (2004) | 1.35 in (2023) |
| August 8 | 97.0°F (2012) | 52.0°F (2004) | 2.12 in (2014) |
| August 9 | 99.0°F (2012) | 53.1°F (2017) | 0.99 in (2021) |
| August 10 | 97.0°F (2001) | 54.0°F (2017) | 1.16 in (2015) |
| August 11 | 97.0°F (2005) | 52.0°F (2004) | 0.63 in (2020) |
| August 12 | 97.0°F (2005) | 44.1°F (2004) | 0.31 in (2023) |
| August 13 | 100.9°F (2007) | 45.0°F (2004) | 3.83 in (2019) |
| August 14 | 97.0°F (2005) | 46.9°F (2004) | 4.05 in (2016) |
| August 15 | 97.0°F (2007) | 48.0°F (2004) | 3.04 in (2016) |
| August 16 | 102.9°F (2007) | 51.1°F (2013) | 1.22 in (2016) |
| August 17 | 98.1°F (2007) | 52.0°F (2013) | 4.13 in (2014) |
| August 18 | 98.1°F (2000) | 51.1°F (2012) | 0.63 in (2000) |
| August 19 | 93.0°F (2004) | 54.0°F (2012) | 2.17 in (2001) |
| August 20 | 95.0°F (2005) | 53.1°F (2012) | 0.82 in (2004) |
| August 21 | 93.9°F (2003) | 52.0°F (1999) | 1.98 in (2010) |
| August 22 | 100.0°F (2003) | 50.0°F (2024) | 2.40 in (2019) |
| August 23 | 97.0°F (2007) | 51.1°F (2024) | 0.23 in (2008) |
| August 24 | 99.0°F (2007) | 52.0°F (2015) | 1.45 in (1999) |
| August 25 | 98.1°F (1998) | 51.1°F (2015) | 1.34 in (2018) |
| August 26 | 100.0°F (2023) | 52.0°F (2015) | 3.32 in (2004) |
| August 27 | 98.1°F (2003) | 51.1°F (2015) | 0.92 in (2005) |
| August 28 | 97.0°F (2003) | 52.0°F (2015) | 0.64 in (2006) |
| August 29 | 98.1°F (2007) | 55.0°F (2010) | 2.10 in (2004) |
| August 30 | 97.0°F (2000) | 48.0°F (2009) | 1.92 in (2022) |
| August 31 | 95.0°F (2013) | 48.9°F (2009) | 2.18 in (2021) |