June weather in Winthrop Harbor, IL
The average temperature in Winthrop Harbor in June is 66.3°F (56.1°F–76.6°F). Average precipitation: 4.45 inches.
June is a summer month in Winthrop Harbor, and is warmer than the annual average of 48.3°F. Daily temperatures swing about 20.5°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 15h 4m. For travel, June is a comfortable month to visit.
Avg High
76.6°F
Avg Low
56.1°F
Precipitation
4.45 in
Daylight
15h 4m
June records in Winthrop Harbor
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| June 1 | 90.0°F (2002) | 35.1°F (2003) | 1.09 in (2000) |
| June 2 | 93.0°F (2020) | 37.0°F (2003) | 0.62 in (2010) |
| June 3 | 88.0°F (2025) | 37.0°F (2009) | 0.85 in (2002) |
| June 4 | 91.9°F (2021) | 41.0°F (2009) | 1.73 in (2002) |
| June 5 | 93.0°F (2021) | -0.8°F (2011) | 1.36 in (2010) |
| June 6 | 93.9°F (2011) | 39.0°F (2011) | 0.58 in (2022) |
| June 7 | 96.1°F (2011) | 44.1°F (2013) | 1.52 in (2007) |
| June 8 | 93.9°F (2011) | 43.0°F (2013) | 1.66 in (2008) |
| June 9 | 89.1°F (2012) | 46.0°F (2016) | 0.59 in (2011) |
| June 10 | 89.1°F (2002) | 46.9°F (2024) | 1.81 in (2004) |
| June 11 | 91.9°F (2017) | 44.1°F (2024) | 1.94 in (2014) |
| June 12 | 93.0°F (2017) | 45.0°F (2006) | 1.57 in (2000) |
| June 13 | 90.0°F (2024) | 46.0°F (2012) | 0.69 in (2023) |
| June 14 | 98.1°F (2022) | 45.0°F (2009) | 1.19 in (2017) |
| June 15 | 95.0°F (2022) | 46.9°F (2020) | 0.81 in (2022) |
| June 16 | 93.9°F (2024) | 46.9°F (2020) | 0.95 in (2009) |
| June 17 | 95.0°F (2024) | 46.0°F (2005) | 0.31 in (2017) |
| June 18 | 93.9°F (2024) | 46.9°F (2022) | 2.19 in (2018) |
| June 19 | 93.9°F (2012) | 46.0°F (2005) | 3.95 in (2009) |
| June 20 | 93.9°F (2012) | 45.0°F (2003) | 0.75 in (2021) |
| June 21 | 98.1°F (2022) | 43.0°F (2003) | 1.59 in (2018) |
| June 22 | 93.0°F (2025) | 48.9°F (2021) | 1.46 in (2024) |
| June 23 | 96.1°F (2025) | 50.0°F (2001) | 1.06 in (2010) |
| June 24 | 95.0°F (2005) | 46.0°F (2006) | 1.24 in (2000) |
| June 25 | 91.9°F (2003) | 46.9°F (2004) | 1.30 in (2024) |
| June 26 | 91.9°F (2025) | 48.0°F (2012) | 2.52 in (2018) |
| June 27 | 93.0°F (2012) | 50.0°F (2017) | 0.94 in (2019) |
| June 28 | 99.0°F (2012) | 48.9°F (2015) | 1.36 in (2017) |
| June 29 | 93.9°F (2018) | 48.0°F (2007) | 0.85 in (2020) |
| June 30 | 93.0°F (2018) | 21.2°F (2015) | 1.16 in (2014) |