June weather in St. Johns, IL
The average temperature in St. Johns in June is 74.3°F (64.3°F–84.4°F). Average precipitation: 4.79 inches.
June is a summer month in St. Johns, and is warmer than the annual average of 56°F. Daily temperatures swing about 20.1°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 14h 36m. For travel, June is a comfortable month to visit.
Avg High
84.4°F
Avg Low
64.3°F
Precipitation
4.79 in
Daylight
14h 36m
June records in St. Johns
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| June 1 | 99.0°F (1934) | 41.0°F (1972) | 2.52 in (1929) |
| June 2 | 100.0°F (1934) | 43.0°F (1907) | 3.29 in (1916) |
| June 3 | 99.0°F (1911) | 43.0°F (1907) | 1.61 in (2021) |
| June 4 | 100.0°F (1911) | 45.0°F (1946) | 1.65 in (2014) |
| June 5 | 99.0°F (1977) | 44.1°F (1926) | 1.22 in (2019) |
| June 6 | 100.0°F (1925) | 46.9°F (1998) | 4.87 in (1996) |
| June 7 | 98.1°F (1934) | 43.0°F (1944) | 2.60 in (1907) |
| June 8 | 97.0°F (1914) | 42.1°F (1930) | 4.18 in (2015) |
| June 9 | 100.0°F (1914) | 45.0°F (1930) | 2.75 in (1899) |
| June 10 | 102.0°F (1914) | 46.9°F (1913) | 1.90 in (2014) |
| June 11 | 100.9°F (1977) | 42.1°F (1913) | 3.77 in (1938) |
| June 12 | 100.0°F (1902) | 45.0°F (1903) | 1.90 in (1929) |
| June 13 | 100.0°F (1902) | 42.1°F (1903) | 2.06 in (1927) |
| June 14 | 100.0°F (1902) | 45.0°F (1955) | 1.13 in (1998) |
| June 15 | 100.0°F (1902) | 44.1°F (1933) | 1.54 in (1894) |
| June 16 | 102.0°F (2016) | 39.0°F (1917) | 2.25 in (2000) |
| June 17 | 102.0°F (1913) | 46.9°F (1917) | 3.50 in (2000) |
| June 18 | 102.0°F (1913) | 48.9°F (1903) | 1.40 in (1989) |
| June 19 | 102.9°F (1936) | 51.1°F (1945) | 1.72 in (2015) |
| June 20 | 104.0°F (1953) | 48.9°F (1980) | 2.23 in (1928) |
| June 21 | 100.9°F (1933) | 46.9°F (1992) | 3.14 in (2011) |
| June 22 | 104.0°F (1930) | 44.1°F (1992) | 1.76 in (2019) |
| June 23 | 102.9°F (1930) | 45.0°F (1972) | 1.52 in (1916) |
| June 24 | 102.0°F (1914) | 46.9°F (1974) | 2.33 in (1929) |
| June 25 | 106.0°F (1988) | 50.0°F (1974) | 2.66 in (1968) |
| June 26 | 102.9°F (1914) | 52.0°F (1958) | 1.79 in (2007) |
| June 27 | 105.1°F (1934) | 50.0°F (1968) | 2.60 in (1985) |
| June 28 | 106.0°F (2012) | 46.0°F (1926) | 4.76 in (1915) |
| June 29 | 105.1°F (1934) | 46.9°F (1923) | 5.25 in (1998) |
| June 30 | 102.9°F (2012) | 48.9°F (1923) | 2.55 in (2020) |