July weather in St. Joseph, IL
The average temperature in St. Joseph in July is 74.4°F (65.1°F–83.6°F). Average precipitation: 4.39 inches.
July is a summer month in St. Joseph, and is warmer than the annual average of 52.2°F. Daily temperatures swing about 18.5°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 14h 35m. For travel, July is a comfortable month to visit.
Avg High
83.6°F
Avg Low
65.1°F
Precipitation
4.39 in
Daylight
14h 35m
July records in St. Joseph
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| July 1 | 93.0°F (2019) | 55.9°F (2024) | 2.21 in (2019) |
| July 2 | 91.0°F (2022) | 50.0°F (2024) | 0.64 in (2023) |
| July 3 | 93.9°F (2012) | 54.0°F (2016) | 0.05 in (2008) |
| July 4 | 93.9°F (2012) | 55.0°F (2021) | 2.75 in (2006) |
| July 5 | 97.0°F (2012) | 55.9°F (2014) | 1.48 in (2009) |
| July 6 | 100.0°F (2012) | 61.0°F (2024) | 1.40 in (2018) |
| July 7 | 100.0°F (2012) | 57.9°F (2018) | 1.48 in (2004) |
| July 8 | 100.0°F (2012) | 55.9°F (2015) | 1.66 in (2023) |
| July 9 | 91.9°F (2020) | 55.9°F (2015) | 1.82 in (2003) |
| July 10 | 91.0°F (2020) | 59.0°F (2023) | 3.80 in (2024) |
| July 11 | 93.0°F (2025) | 59.0°F (2022) | 1.64 in (2024) |
| July 12 | 93.9°F (2011) | 55.9°F (2013) | 0.87 in (2006) |
| July 13 | 91.0°F (2012) | 55.9°F (2013) | 2.48 in (2006) |
| July 14 | 91.9°F (2024) | 60.1°F (2022) | 1.01 in (2016) |
| July 15 | 91.9°F (2024) | 54.0°F (2014) | 1.33 in (2012) |
| July 16 | 95.0°F (2024) | 54.0°F (2014) | 1.23 in (2010) |
| July 17 | 93.0°F (2025) | 54.0°F (2014) | 0.34 in (2007) |
| July 18 | 93.0°F (2012) | 55.0°F (2014) | 0.69 in (2007) |
| July 19 | 96.1°F (2012) | 52.0°F (2024) | 0.34 in (2016) |
| July 20 | 96.1°F (2011) | 53.1°F (2024) | 0.87 in (2010) |
| July 21 | 93.9°F (2011) | 59.0°F (2024) | 0.89 in (2006) |
| July 22 | 97.0°F (2011) | 57.0°F (2023) | 1.73 in (2005) |
| July 23 | 93.9°F (2011) | 55.9°F (2019) | 0.70 in (2018) |
| July 24 | 96.1°F (2012) | 55.0°F (2014) | 0.51 in (2017) |
| July 25 | 96.1°F (2025) | 53.1°F (2013) | 0.75 in (2009) |
| July 26 | 98.1°F (2012) | 53.1°F (2013) | 0.16 in (2025) |
| July 27 | 93.0°F (2025) | 59.0°F (2024) | 1.03 in (2014) |
| July 28 | 93.0°F (2023) | 51.1°F (2013) | 1.28 in (2006) |
| July 29 | 96.1°F (2023) | 50.0°F (2013) | 0.96 in (2002) |
| July 30 | 95.0°F (2025) | 54.0°F (2013) | 0.64 in (2008) |
| July 31 | 91.9°F (2025) | 55.9°F (2022) | 0.56 in (2025) |