Weather on August 21
Fishers, IN
55 Years of Data
Avg High
83°F
Avg Low
61°F
Warmest
1983
88°F avg
Coldest
2024
60°F avg
About This Date
August 21st in Fishers, IN typically brings warm summer weather, with average highs around 83°F and lows near 61°F. Over 52 years of records, the warmest August 21st was in 1983 (88°F average), while the coldest was 2024 (60°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 27% of August 21st dates historically, with the wettest August 21st recording 4.22" of rain. The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.
Planning for August 21st in Fishers, IN? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 73° | 65° | 69° | — | — |
| 2024coldest | 71° | 49° | 60° | — | — |
| 2023 | 89° | 67° | 78° | — | — |
| 2022 | 81° | 66° | 73° | 0.23" | — |
| 2021 | 88° | 67° | 77° | — | — |
| 2020 | 79° | 56° | 67° | — | — |
| 2019 | 86° | 68° | 77° | 0.13" | — |
| 2018 | 80° | 68° | 74° | 4.09" | — |
| 2017 | 89° | 62° | 76° | — | — |
| 2016 | 79° | 61° | 70° | 4.22" | — |
| 2015 | 82° | 53° | 68° | — | — |
| 2014 | 81° | 64° | 72° | 0.03" | — |
| 2013 | 88° | 66° | 77° | — | — |
| 2012 | 77° | 54° | 65° | 0.69" | — |
| 2011 | 86° | 66° | 76° | — | — |
| 2010 | 91° | 69° | 80° | 0.25" | — |
| 2009 | 81° | 65° | 73° | — | — |
| 2008 | 85° | 62° | 73° | — | — |
| 2007 | 89° | 72° | 80° | 3.51" | — |
| 2006 | 77° | 57° | 67° | — | — |
| 2003 | 87° | 63° | 75° | — | — |
| 2002 | 80° | 63° | 71° | — | — |
| 2001 | 82° | 61° | 71° | — | — |
| 2000 | 72° | 51° | 61° | — | — |
| 1999 | 79° | 53° | 66° | — | — |
| 1997 | 74° | 57° | 65° | 0.08" | — |
| 1996 | 89° | 66° | 78° | — | — |
| 1995 | 87° | 71° | 79° | — | — |
| 1994 | 87° | 59° | 73° | 1.09" | — |
| 1993 | 83° | 58° | 70° | — | — |
| 1992 | 75° | 51° | 63° | — | — |
| 1991 | 77° | 57° | 67° | — | — |
| 1990 | 86° | 68° | 77° | 2.54" | — |
| 1989 | 81° | 64° | 72° | 0.2" | — |
| 1988 | 81° | 58° | 69° | — | — |
| 1987 | 86° | 61° | 73° | — | — |
| 1986 | 84° | 59° | 72° | — | — |
| 1985 | 75° | 54° | 64° | — | — |
| 1984 | 81° | 57° | 69° | — | — |
| 1983warmest | 99° | 77° | 88° | — | — |
| 1982 | 85° | 55° | 70° | 1.42" | — |
| 1981 | 82° | 56° | 69° | — | — |
| 1980 | 93° | 70° | 81° | — | — |
| 1979 | 83° | 66° | 74° | 1.7" | — |
| 1978 | 76° | 51° | 63° | — | — |
| 1977 | 72° | 54° | 63° | — | — |
| 1976 | 84° | 59° | 72° | — | — |
| 1975 | 90° | 71° | 80° | — | — |
| 1974 | 87° | 60° | 74° | — | — |
| 1973 | 84° | 53° | 69° | — | — |
| 1972 | 89° | 64° | 77° | — | — |
| 1971 | 86° | 69° | 78° | — | — |
52 years of data from OAKLANDON GEIST RSVR