May weather in Marseilles, IL
The average temperature in Marseilles in May is 60.5°F (48.5°F–72.6°F). Average precipitation: 4.70 inches.
May is a spring month in Marseilles, and is warmer than the annual average of 49.7°F. Daily temperatures swing about 24.1°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 14h 19m. For travel, May is a comfortable month to visit.
Avg High
72.6°F
Avg Low
48.5°F
Precipitation
4.70 in
Daylight
14h 19m
May records in Marseilles
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 86.0°F (2013) | 32.0°F (2015) | 2.15 in (1970) |
| May 2 | 86.0°F (2018) | 34.0°F (2015) | 1.88 in (1983) |
| May 3 | 87.1°F (2018) | 26.1°F (2005) | 0.82 in (1979) |
| May 4 | 86.0°F (2001) | 26.1°F (2005) | 1.42 in (1990) |
| May 5 | 82.0°F (1999) | 28.0°F (2005) | 1.36 in (2003) |
| May 6 | 84.9°F (2000) | 34.0°F (2019) | 1.81 in (1998) |
| May 7 | 87.1°F (2004) | 32.0°F (2017) | 4.43 in (2012) |
| May 8 | 89.1°F (2023) | 32.0°F (2017) | 1.94 in (1945) |
| May 9 | 90.0°F (2014) | 30.9°F (2020) | 2.20 in (2021) |
| May 10 | 97.0°F (2024) | 30.9°F (1977) | 3.44 in (1990) |
| May 11 | 91.9°F (2011) | 35.1°F (1997) | 2.18 in (1979) |
| May 12 | 91.9°F (2022) | 34.0°F (2021) | 3.14 in (1966) |
| May 13 | 91.9°F (2022) | 30.9°F (2013) | 1.47 in (1970) |
| May 14 | 90.0°F (2022) | 30.9°F (2013) | 1.97 in (2023) |
| May 15 | 91.0°F (2013) | 30.9°F (2016) | 1.30 in (1945) |
| May 16 | 91.0°F (2025) | 30.0°F (1997) | 2.13 in (2009) |
| May 17 | 91.0°F (2001) | 27.0°F (2014) | 1.52 in (2019) |
| May 18 | 88.0°F (1977) | 32.0°F (2002) | 1.18 in (1991) |
| May 19 | 90.0°F (1998) | 32.0°F (2002) | 1.95 in (1957) |
| May 20 | 91.0°F (1977) | 37.9°F (2008) | 0.93 in (1984) |
| May 21 | 90.0°F (1977) | 30.0°F (2002) | 1.47 in (1987) |
| May 22 | 86.0°F (1977) | 30.0°F (2002) | 0.97 in (1999) |
| May 23 | 88.0°F (2007) | 37.9°F (1997) | 1.10 in (1993) |
| May 24 | 89.1°F (1977) | 37.0°F (2013) | 1.20 in (1975) |
| May 25 | 93.0°F (2010) | 37.0°F (2013) | 0.76 in (1973) |
| May 26 | 91.9°F (1977) | 39.0°F (2002) | 2.75 in (1991) |
| May 27 | 91.9°F (2012) | 39.9°F (2002) | 2.65 in (1982) |
| May 28 | 96.1°F (2018) | 39.0°F (2023) | 1.68 in (1955) |
| May 29 | 93.9°F (2006) | 41.0°F (2008) | 1.65 in (2019) |
| May 30 | 93.9°F (2018) | 41.0°F (2008) | 0.88 in (1970) |
| May 31 | 90.0°F (2022) | 39.0°F (2021) | 2.27 in (2004) |