Weather on August 21
Huntsville, AL
55 Years of Data
Avg High
90°F
Avg Low
68°F
Warmest
2005
84°F avg
Coldest
1973
69°F avg
About This Date
August 21st in Huntsville, AL typically brings hot summer weather, with average highs around 90°F and lows near 68°F. Over 25 years of records, the warmest August 21st was in 2005 (84°F average), while the coldest was 1973 (69°F) — a 15°F range across recorded history. Rain or other precipitation has occurred on about 32% of August 21st dates historically, with the wettest August 21st recording 1.93" of rain.
Planning for August 21st in Huntsville, AL? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 92° | 69° | 80° | 1.93" | — |
| 2024 | 85° | 57° | 71° | — | — |
| 2023 | 88° | 67° | 77° | — | — |
| 2022 | 85° | 69° | 77° | 0.03" | — |
| 2021 | 83° | 72° | 77° | 0.08" | — |
| 2020 | 85° | 65° | 75° | 0.05" | — |
| 2019 | 98° | 69° | 84° | 0.97" | — |
| 2018 | 85° | 73° | 79° | — | — |
| 2017 | 92° | 70° | 81° | — | — |
| 2016 | 85° | 66° | 75° | — | — |
| 2015 | 88° | 70° | 79° | — | — |
| 2014 | 93° | 69° | 81° | — | — |
| 2013 | 84° | 72° | 78° | 0.03" | — |
| 2012 | 84° | 56° | 70° | — | — |
| 2011 | 94° | 69° | 81° | — | — |
| 2010 | 93° | 71° | 82° | — | — |
| 2009 | 88° | 69° | 78° | 0.84" | — |
| 2008 | 94° | 68° | 81° | — | — |
| 2007 | 97° | 71° | 84° | — | — |
| 2006 | 99° | 69° | 84° | — | — |
| 2005warmest | 95° | 73° | 84° | — | — |
| 1974 | 88° | 66° | 77° | — | — |
| 1973coldest | 84° | 54° | 69° | — | — |
| 1972 | 87° | 68° | 78° | 0.76" | — |
| 1971 | 95° | 66° | 81° | — | — |
25 years of data from REDSTONE ARSENAL