Weather on May 21
Elgin, IL
55 Years of Data
Avg High
72°F
Avg Low
49°F
Warmest
1977
76°F avg
Coldest
2002
39°F avg
About This Date
May 21st in Elgin, IL typically brings pleasant spring weather, with average highs around 72°F and lows near 49°F. Over 54 years of records, the warmest May 21st was in 1977 (76°F average), while the coldest was 2002 (39°F) — a 37°F range across recorded history. Rain or other precipitation has occurred on about 35% of May 21st dates historically, with the wettest May 21st recording 2.57" of rain. The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.
Planning for May 21st in Elgin, IL? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 55° | 47° | 51° | 1.02" | — |
| 2024 | 84° | 58° | 71° | — | — |
| 2023 | 73° | 45° | 59° | — | — |
| 2022 | 86° | 57° | 72° | 1.12" | — |
| 2021 | 84° | 63° | 73° | — | — |
| 2020 | 66° | 54° | 60° | — | — |
| 2019 | 61° | 50° | 55° | 0.03" | — |
| 2018 | 59° | 48° | 54° | 1.55" | — |
| 2017 | 63° | 49° | 56° | 0.89" | — |
| 2016 | 71° | 49° | 60° | — | — |
| 2015 | 49° | 41° | 45° | 0.25" | — |
| 2014 | 85° | 62° | 73° | 0.41" | — |
| 2013 | 86° | 62° | 74° | 1.14" | — |
| 2012 | 90° | 55° | 72° | — | — |
| 2011 | 76° | 52° | 64° | — | — |
| 2010 | 71° | 51° | 61° | 0.97" | — |
| 2009 | 82° | 53° | 68° | — | — |
| 2008 | 67° | 38° | 52° | 0.03" | — |
| 2007 | 61° | 42° | 51° | — | — |
| 2006 | 73° | 46° | 60° | 0.03" | — |
| 2005 | 70° | 43° | 56° | — | — |
| 2004 | 84° | 57° | 71° | 0.25" | — |
| 2003 | 66° | 42° | 54° | — | — |
| 2002coldest | 50° | 29° | 39° | — | — |
| 2001 | 79° | 54° | 66° | 0.25" | — |
| 2000 | 66° | 44° | 55° | — | — |
| 1999 | 79° | 54° | 66° | — | — |
| 1998 | 79° | 52° | 65° | — | — |
| 1997 | 63° | 35° | 49° | — | — |
| 1996 | 65° | 52° | 58° | 2.57" | — |
| 1995 | 74° | 51° | 62° | — | — |
| 1994 | 80° | 50° | 65° | — | — |
| 1993 | 62° | 42° | 52° | — | — |
| 1992 | 82° | 53° | 68° | — | — |
| 1991 | 74° | 55° | 64° | — | — |
| 1990 | 53° | 46° | 50° | — | — |
| 1989 | 74° | 44° | 59° | — | — |
| 1988 | 79° | 51° | 65° | — | — |
| 1987 | 81° | 58° | 69° | 1.37" | — |
| 1986 | 62° | 45° | 53° | — | — |
| 1985 | 71° | 44° | 58° | 0.58" | — |
| 1984 | 73° | 54° | 63° | — | — |
| 1983 | 58° | 53° | 55° | — | — |
| 1982 | 70° | 42° | 56° | — | — |
| 1981 | 77° | 51° | 64° | — | — |
| 1980 | 74° | 49° | 61° | — | — |
| 1979 | 77° | 40° | 58° | — | — |
| 1978 | 78° | 41° | 60° | — | — |
| 1977warmest | 89° | 62° | 76° | 0.08" | — |
| 1976 | 81° | 54° | 67° | — | — |
| 1975 | 78° | — | — | 0.3" | — |
| 1974 | 72° | 54° | 63° | 0.08" | — |
| 1973 | 74° | 47° | 60° | — | — |
| 1971 | 64° | 36° | 50° | — | — |
54 years of data from ELGIN WATER