Weather on October 21
Grand Rapids, MI
55 Years of Data
Avg High
59°F
Avg Low
40°F
Warmest
1979
76°F avg
Coldest
1974
34°F avg
About This Date
October 21st in Grand Rapids, MI typically brings cool fall weather, with average highs around 59°F and lows near 40°F. Over 55 years of records, the warmest October 21st was in 1979 (76°F average), while the coldest was 1974 (34°F) — a 42°F range across recorded history. Precipitation has occurred on 40% of recorded October 21st dates, with snow falling 4% of the time (heaviest snowfall: 1.1"). The last decade has been 3.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.4°F warmer on this date compared to 20-30 years ago.
Planning for October 21st in Grand Rapids, MI? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 63° | 36° | 49° | 0.23" | — |
| 2024 | 75° | 44° | 60° | — | — |
| 2023 | 53° | 34° | 43° | 0.23" | — |
| 2022 | 53° | 32° | 43° | — | — |
| 2021 | 72° | 47° | 59° | 0.74" | — |
| 2020 | 51° | 39° | 45° | 0.89" | — |
| 2019 | 66° | 45° | 55° | — | — |
| 2018 | 53° | 35° | 44° | 0.36" | — |
| 2017 | 78° | 44° | 61° | — | — |
| 2016 | 56° | 39° | 47° | — | — |
| 2015 | 70° | 52° | 61° | 1.14" | — |
| 2014 | 52° | 35° | 43° | — | — |
| 2013 | 54° | 41° | 47° | 0.51" | — |
| 2012 | 62° | 37° | 50° | — | — |
| 2011 | 50° | 33° | 42° | — | — |
| 2010 | 52° | 38° | 45° | — | — |
| 2009 | 68° | 52° | 60° | 0.38" | — |
| 2008 | 53° | 35° | 44° | — | — |
| 2007 | 79° | 56° | 67° | — | — |
| 2006 | 52° | 42° | 47° | 1.02" | — |
| 2005 | 58° | 36° | 47° | — | — |
| 2004 | 53° | 36° | 44° | — | — |
| 2003 | 65° | 44° | 54° | — | — |
| 2002 | 49° | 28° | 38° | — | — |
| 2001 | 62° | 40° | 51° | — | — |
| 2000 | 68° | 49° | 58° | — | — |
| 1999 | 63° | 34° | 48° | — | — |
| 1998 | 51° | 36° | 43° | 0.08" | — |
| 1997 | 46° | 31° | 38° | — | — |
| 1996 | 63° | 40° | 51° | — | — |
| 1995 | 46° | 35° | 41° | 0.64" | — |
| 1994 | 65° | 38° | 51° | — | — |
| 1993 | 54° | 44° | 49° | 0.2" | — |
| 1992 | 49° | 32° | 40° | — | — |
| 1991 | 64° | 38° | 51° | — | — |
| 1990 | 57° | 45° | 51° | 0.03" | — |
| 1989 | 45° | 33° | 39° | 0.08" | — |
| 1988 | 47° | 41° | 44° | 0.41" | — |
| 1987 | 44° | 30° | 37° | 0.81" | 0.7" |
| 1986 | 71° | 50° | 61° | — | — |
| 1985 | 56° | 38° | 47° | — | — |
| 1984 | 49° | 38° | 43° | 1.5" | — |
| 1983 | 61° | 40° | 50° | — | — |
| 1982 | 47° | 40° | 43° | — | — |
| 1981 | 49° | 36° | 42° | 1.42" | — |
| 1980 | 53° | 31° | 42° | 0.1" | — |
| 1979warmest | 80° | 72° | 76° | — | — |
| 1978 | 76° | 47° | 61° | — | — |
| 1977 | 71° | 42° | 57° | 0.03" | — |
| 1976 | 44° | 32° | 38° | 0.3" | 1.1" |
| 1975 | 70° | 44° | 57° | — | — |
| 1974coldest | 51° | 18° | 34° | — | — |
| 1973 | 63° | 33° | 48° | — | — |
| 1972 | 46° | 38° | 42° | 1.37" | — |
| 1971 | 72° | 57° | 64° | — | — |
55 years of data from E GRAND RAPIDS