August weather in Prophetstown, IL
The average temperature in Prophetstown in August is °F (°F–°F). Average precipitation: 4.28 inches.
August is a summer month in Prophetstown, and is cooler than the annual average of 0°F. Expect about 8 days with precipitation. Daylight averages about 13h 41m.
Avg High
°F
Avg Low
°F
Precipitation
4.28 in
Daylight
13h 41m
August records in Prophetstown
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | — | — | 0.36 in (2008) |
| August 2 | — | — | 0.71 in (2001) |
| August 3 | — | — | 1.10 in (2006) |
| August 4 | — | — | 1.20 in (2004) |
| August 5 | — | — | 2.55 in (2012) |
| August 6 | — | — | 1.16 in (1996) |
| August 7 | — | — | 0.59 in (2006) |
| August 8 | — | — | 2.15 in (2007) |
| August 9 | — | — | 1.57 in (2010) |
| August 10 | — | — | 0.95 in (1949) |
| August 11 | — | — | 3.71 in (2016) |
| August 12 | — | — | 1.04 in (2003) |
| August 13 | — | — | 1.95 in (2002) |
| August 14 | — | — | 1.12 in (2010) |
| August 15 | — | — | 1.80 in (1997) |
| August 16 | — | — | 0.97 in (2018) |
| August 17 | — | — | 2.04 in (1997) |
| August 18 | — | — | 0.97 in (2016) |
| August 19 | — | — | 0.85 in (2002) |
| August 20 | — | — | 0.95 in (2007) |
| August 21 | — | — | 1.02 in (2019) |
| August 22 | — | — | 1.14 in (2002) |
| August 23 | — | — | 1.85 in (2007) |
| August 24 | — | — | 1.93 in (1999) |
| August 25 | — | — | 1.18 in (2004) |
| August 26 | — | — | 1.10 in (2009) |
| August 27 | — | — | 1.25 in (2012) |
| August 28 | — | — | 1.43 in (2004) |
| August 29 | — | — | 2.04 in (2018) |
| August 30 | — | — | 0.53 in (2024) |
| August 31 | — | — | 1.07 in (1997) |