August weather in Stoy, IL
The average temperature in Stoy in August is 74.5°F (63.0°F–86.1°F). Average precipitation: 3.45 inches.
August is a summer month in Stoy, and is warmer than the annual average of 54.1°F. Daily temperatures swing about 23.1°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 13h 32m. For travel, August is a comfortable month to visit.
Avg High
86.1°F
Avg Low
63.0°F
Precipitation
3.45 in
Daylight
13h 32m
August records in Stoy
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 100.9°F (1897) | 55.9°F (1903) | 0.65 in (2021) |
| August 2 | 102.0°F (1897) | 53.1°F (1908) | 0.59 in (1898) |
| August 3 | 102.9°F (1897) | 53.1°F (2003) | 1.11 in (1903) |
| August 4 | 98.1°F (2002) | 52.0°F (1907) | 0.95 in (2017) |
| August 5 | 98.1°F (2010) | 50.0°F (2017) | 2.10 in (1907) |
| August 6 | 97.0°F (2002) | 53.1°F (2004) | 2.00 in (1905) |
| August 7 | 96.1°F (2007) | 48.9°F (2004) | 1.39 in (1906) |
| August 8 | 99.0°F (1901) | 52.0°F (1904) | 2.34 in (2006) |
| August 9 | 99.0°F (2012) | 51.1°F (1904) | 3.35 in (2021) |
| August 10 | 102.0°F (1911) | 54.0°F (2002) | 0.66 in (1904) |
| August 11 | 100.0°F (2010) | 52.0°F (2008) | 1.80 in (2006) |
| August 12 | 97.0°F (1909) | 46.9°F (2004) | 0.86 in (1900) |
| August 13 | 99.0°F (2005) | 48.9°F (2004) | 1.12 in (1903) |
| August 14 | 97.0°F (2005) | 46.0°F (2004) | 1.52 in (2005) |
| August 15 | 95.0°F (1909) | 45.0°F (2004) | 0.20 in (1902) |
| August 16 | 99.0°F (1908) | 45.0°F (2004) | 1.42 in (2016) |
| August 17 | 98.1°F (1908) | 51.1°F (2004) | 3.05 in (1902) |
| August 18 | 96.1°F (1900) | 52.0°F (2012) | 1.30 in (1905) |
| August 19 | 93.9°F (1900) | 52.0°F (1897) | 1.41 in (1904) |
| August 20 | 96.1°F (1900) | 46.9°F (1897) | 0.94 in (1904) |
| August 21 | 98.1°F (1900) | 50.0°F (2024) | 1.00 in (1907) |
| August 22 | 95.0°F (1898) | 50.0°F (2024) | 1.50 in (2017) |
| August 23 | 98.1°F (2007) | 48.9°F (1904) | 1.33 in (2000) |
| August 24 | 100.0°F (2007) | 50.0°F (1902) | 0.87 in (2000) |
| August 25 | 98.1°F (2007) | 48.0°F (2015) | 0.54 in (2004) |
| August 26 | 100.0°F (2023) | 48.0°F (2025) | 2.00 in (2018) |
| August 27 | 99.0°F (1909) | 46.9°F (1910) | 1.76 in (2000) |
| August 28 | 100.0°F (1909) | 48.9°F (1910) | 0.95 in (2021) |
| August 29 | 100.0°F (1897) | 50.0°F (1911) | 0.47 in (2009) |
| August 30 | 97.0°F (1907) | 48.0°F (1911) | 0.52 in (2003) |
| August 31 | 97.0°F (2024) | 50.0°F (2009) | 1.33 in (2003) |