Weather on May 15
Elgin, IL
55 Years of Data
Avg High
69°F
Avg Low
47°F
Warmest
2007
75°F avg
Coldest
1978
44°F avg
About This Date
May 15th in Elgin, IL typically brings mild spring weather, with average highs around 69°F and lows near 47°F. Over 54 years of records, the warmest May 15th was in 2007 (75°F average), while the coldest was 1978 (44°F) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 48% of May 15th dates historically, with the wettest May 15th recording 7.54" of rain. The last decade has been 7.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 7.3°F warmer on this date compared to 20-30 years ago.
Planning for May 15th in Elgin, IL? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 81° | 57° | 69° | — | — |
| 2024 | 62° | 49° | 55° | 0.13" | — |
| 2023 | 60° | 47° | 53° | 0.28" | — |
| 2022 | 88° | 63° | 75° | — | — |
| 2021 | 72° | 45° | 58° | — | — |
| 2020 | 73° | 53° | 63° | 7.54" | — |
| 2019 | 73° | 45° | 59° | — | — |
| 2018 | 82° | 50° | 66° | 3.84" | — |
| 2017 | 77° | 48° | 63° | — | — |
| 2016 | 48° | 40° | 44° | — | — |
| 2015 | 67° | 46° | 56° | 0.28" | — |
| 2014 | 56° | 40° | 48° | 1.02" | — |
| 2013 | 90° | 57° | 73° | — | — |
| 2012 | 79° | 46° | 62° | — | — |
| 2011 | 54° | 45° | 49° | 0.3" | — |
| 2010 | 73° | 44° | 59° | — | — |
| 2009 | 67° | 50° | 58° | 0.08" | — |
| 2008 | 67° | 42° | 54° | 0.03" | — |
| 2007warmest | 89° | 61° | 75° | — | — |
| 2006 | 57° | 44° | 51° | 0.46" | — |
| 2005 | 61° | 42° | 51° | — | — |
| 2004 | 55° | 46° | 51° | 2.26" | — |
| 2003 | 56° | 46° | 51° | 3.12" | — |
| 2002 | 64° | 40° | 52° | — | — |
| 2001 | 65° | 49° | 57° | 0.18" | — |
| 2000 | 63° | 39° | 51° | — | — |
| 1999 | 67° | 44° | 55° | — | — |
| 1998 | 87° | 54° | 70° | — | — |
| 1997 | 56° | 37° | 46° | 0.08" | — |
| 1996 | 56° | 40° | 48° | 0.53" | — |
| 1995 | 69° | 44° | 57° | — | — |
| 1994 | 67° | 55° | 61° | 0.25" | — |
| 1993 | 78° | 50° | 64° | — | — |
| 1992 | 64° | 45° | 54° | — | — |
| 1991 | 85° | 58° | 71° | — | — |
| 1990 | 65° | 51° | 58° | — | — |
| 1989 | 64° | 43° | 53° | — | — |
| 1988 | 80° | 41° | 61° | — | — |
| 1987 | 83° | 44° | 63° | — | — |
| 1986 | 68° | 49° | 58° | 0.03" | — |
| 1985 | 86° | 57° | 72° | 1.57" | — |
| 1984 | 69° | 40° | 54° | — | — |
| 1983 | 62° | 43° | 52° | 0.61" | — |
| 1982 | 88° | 58° | 73° | — | — |
| 1981 | 48° | 42° | 45° | 1.96" | — |
| 1980 | 64° | 44° | 54° | 0.08" | — |
| 1979 | 62° | 43° | 52° | 0.41" | — |
| 1978coldest | 47° | 42° | 44° | 0.13" | — |
| 1977 | 86° | 52° | 69° | — | — |
| 1976 | 67° | 54° | 60° | 0.25" | — |
| 1975 | 63° | — | — | — | — |
| 1974 | 67° | 45° | 56° | 1.78" | — |
| 1973 | 55° | 36° | 45° | 0.05" | — |
| 1971 | 84° | 52° | 68° | — | — |
54 years of data from ELGIN WATER