August weather in Belvidere, IL
The average temperature in Belvidere in August is °F (°F–°F). Average precipitation: 4.72 inches.
August is a summer month in Belvidere, and is cooler than the annual average of 0°F. Expect about 9 days with precipitation. Daylight averages about 13h 43m.
Avg High
°F
Avg Low
°F
Precipitation
4.72 in
Daylight
13h 43m
August records in Belvidere
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | — | — | 1.76 in (2000) |
| August 2 | — | — | 4.24 in (1942) |
| August 3 | — | — | 1.10 in (2001) |
| August 4 | — | — | 1.45 in (2004) |
| August 5 | — | — | 1.47 in (2007) |
| August 6 | — | — | 1.07 in (2019) |
| August 7 | — | — | 6.30 in (2007) |
| August 8 | — | — | 2.75 in (2022) |
| August 9 | — | — | 1.45 in (1946) |
| August 10 | — | — | 5.20 in (2021) |
| August 11 | — | — | 1.20 in (2020) |
| August 12 | — | — | 1.50 in (2005) |
| August 13 | — | — | 1.49 in (1943) |
| August 14 | — | — | 1.98 in (2011) |
| August 15 | — | — | 2.47 in (2023) |
| August 16 | — | — | 1.39 in (1948) |
| August 17 | — | — | 1.34 in (2025) |
| August 18 | — | — | 0.83 in (2015) |
| August 19 | — | — | 2.05 in (2005) |
| August 20 | — | — | 1.45 in (2007) |
| August 21 | — | — | 1.02 in (2014) |
| August 22 | — | — | 7.07 in (2002) |
| August 23 | — | — | 1.25 in (2007) |
| August 24 | — | — | 3.23 in (1999) |
| August 25 | — | — | 0.80 in (2001) |
| August 26 | — | — | 4.60 in (2006) |
| August 27 | — | — | 1.32 in (2009) |
| August 28 | — | — | 0.96 in (2004) |
| August 29 | — | — | 2.15 in (2018) |
| August 30 | — | — | 1.12 in (2016) |
| August 31 | — | — | 1.40 in (1945) |