June weather in Decatur, IL
The average temperature in Decatur in June is 72.6°F (63.1°F–82.2°F). Average precipitation: 4.73 inches.
June is a summer month in Decatur, and is warmer than the annual average of 53°F. Daily temperatures swing about 19.1°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 14h 47m. For travel, June is a comfortable month to visit.
Avg High
82.2°F
Avg Low
63.1°F
Precipitation
4.73 in
Daylight
14h 47m
June records in Decatur
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| June 1 | 104.0°F (1934) | 39.0°F (1983) | 1.92 in (1958) |
| June 2 | 104.0°F (1934) | 39.9°F (1956) | 4.76 in (1965) |
| June 3 | 100.0°F (1934) | 39.0°F (1929) | 3.77 in (2008) |
| June 4 | 99.0°F (1911) | 39.9°F (1945) | 2.51 in (2014) |
| June 5 | 100.0°F (1925) | 41.0°F (1990) | 2.10 in (1917) |
| June 6 | 100.9°F (1934) | 32.0°F (1894) | 3.50 in (2001) |
| June 7 | 99.0°F (1933) | 39.9°F (1894) | 2.73 in (2008) |
| June 8 | 97.0°F (1934) | 37.9°F (1894) | 2.12 in (1896) |
| June 9 | 98.1°F (1914) | 39.9°F (1913) | 2.27 in (1937) |
| June 10 | 100.0°F (1911) | 39.0°F (1988) | 3.10 in (1958) |
| June 11 | 102.0°F (1933) | 39.9°F (1903) | 2.22 in (2018) |
| June 12 | 99.0°F (1894) | 37.9°F (1903) | 1.75 in (2010) |
| June 13 | 99.0°F (1894) | 39.9°F (1903) | 2.34 in (1957) |
| June 14 | 102.9°F (1987) | 44.1°F (1933) | 2.45 in (1937) |
| June 15 | 100.0°F (1987) | 12.9°F (1943) | 4.48 in (1968) |
| June 16 | 98.1°F (1922) | 37.9°F (1917) | 2.68 in (1970) |
| June 17 | 102.0°F (1918) | 42.1°F (1980) | 1.33 in (1947) |
| June 18 | 102.0°F (1913) | 46.0°F (1980) | 1.81 in (1946) |
| June 19 | 102.9°F (1953) | 48.9°F (1985) | 1.81 in (1973) |
| June 20 | 105.1°F (1953) | 39.9°F (1980) | 1.14 in (1961) |
| June 21 | 100.0°F (1933) | 41.0°F (1992) | 2.29 in (1964) |
| June 22 | 99.0°F (1914) | 41.0°F (1902) | 3.95 in (1974) |
| June 23 | 102.9°F (1923) | 43.0°F (1972) | 2.95 in (1919) |
| June 24 | 100.9°F (1922) | 45.0°F (1972) | 3.42 in (2014) |
| June 25 | 100.9°F (1954) | 46.0°F (1979) | 3.00 in (1919) |
| June 26 | 105.1°F (1954) | 46.0°F (1979) | 3.07 in (1953) |
| June 27 | 105.1°F (1934) | 46.0°F (1905) | 3.15 in (1951) |
| June 28 | 105.1°F (1934) | 46.9°F (1987) | 3.40 in (1951) |
| June 29 | 104.0°F (1934) | 43.0°F (1923) | 2.04 in (1902) |
| June 30 | 105.1°F (1931) | 46.9°F (1943) | 1.53 in (1895) |