Weather on June 21 at Great Smoky Mountains
Great Smoky Mountains National Park
Based on 55 years of data from Gatlinburg, TN
Elevation Note: Great Smoky Mountains sits at 4,900 ft. Expect temperatures 17°F cooler than the data shown below, which comes from Gatlinburg, TN at a lower elevation.
Planning Your Visit
June 21st in Great Smoky Mountains National Park (via Gatlinburg, TN) typically brings warm summer weather, with average highs around 82°F and lows near 59°F. Over 55 years of records, the warmest June 21st was in 2009 (78°F average), while the coldest was 2003 (62°F) — a 16°F range across recorded history. Rain or other precipitation has occurred on about 44% of June 21st dates historically, with the wettest June 21st recording 4.5" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for June 21st in Great Smoky Mountains? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 79°F | 62°F | 0" | 0" |
| 2024 | 82°F | 60°F | 0" | 0" |
| 2023 | 75°F | 63°F | 1.19" | 0" |
| 2022 | 83°F | 47°F | 0" | 0" |
| 2021 | 84°F | 63°F | 0" | 0" |
| 2020 | 79°F | 56°F | 0.05" | 0" |
| 2019 | 76°F | 63°F | 0.84" | 0" |
| 2018 | 84°F | 65°F | 0" | 0" |
| 2017 | 78°F | 59°F | 0" | 0" |
| 2016 | 80°F | 56°F | 0" | 0" |
| 2015 | 84°F | 66°F | 0.1" | 0" |
| 2014 | 87°F | 62°F | 0" | 0" |
| 2013 | 81°F | 58°F | 0" | 0" |
| 2012 | 88°F | 61°F | 0" | 0" |
| 2011 | 84°F | 65°F | 0" | 0" |
| 2010 | 89°F | 62°F | 0" | 0" |
| 2009 | 89°F | 67°F | 0.15" | 0" |
| 2008 | 78°F | 53°F | 0" | 0" |
| 2007 | 83°F | 51°F | 0" | 0" |
| 2006 | 86°F | 62°F | 0" | 0" |
| 2005 | 71°F | 53°F | 0.28" | 0" |
| 2004 | 80°F | 64°F | 0" | 0" |
| 2003 | 78°F | 47°F | 0" | 0" |
| 2002 | 89°F | 55°F | 0" | 0" |
| 2001 | 85°F | 63°F | 0" | 0" |
| 2000 | 83°F | 63°F | 3.18" | 0" |
| 1999 | 78°F | 50°F | 0" | 0" |
| 1998 | 86°F | 58°F | 0" | 0" |
| 1997 | 83°F | 60°F | 0.64" | 0" |
| 1996 | 84°F | 62°F | 0" | 0" |
| 1995 | 72°F | 55°F | 3.1" | 0" |
| 1994 | 85°F | 65°F | 0.48" | 0" |
| 1993 | 84°F | 58°F | 0.43" | 0" |
| 1992 | 81°F | 59°F | 0.1" | 0" |
| 1991 | 80°F | 65°F | 0.3" | 0" |
| 1990 | 88°F | 53°F | 0" | 0" |
| 1989 | 73°F | 61°F | 0.25" | 0" |
| 1988 | 86°F | 56°F | 0" | 0" |
| 1987 | 84°F | 64°F | 0.76" | 0" |
| 1986 | 90°F | 60°F | 0" | 0" |
| 1985 | 84°F | 50°F | 0" | 0" |
| 1984 | 88°F | 65°F | 0" | 0" |
| 1983 | 84°F | 57°F | 0" | 0" |
| 1982 | 87°F | 54°F | 0" | 0" |
| 1981 | 87°F | 63°F | 0.43" | 0" |
| 1980 | 81°F | 53°F | 0" | 0" |
| 1979 | 85°F | 64°F | 0.25" | 0" |
| 1978 | 79°F | 59°F | 0.84" | 0" |
| 1977 | 81°F | 64°F | 0.76" | 0" |
| 1976 | 74°F | 58°F | 0.61" | 0" |
| 1975 | 85°F | 55°F | 0.48" | 0" |
| 1974 | 82°F | 63°F | 1.35" | 0" |
| 1973 | 79°F | 61°F | 1.07" | 0" |
| 1972 | 70°F | 64°F | 4.5" | 0" |
| 1971 | 81°F | 60°F | 0" | 0" |
June 21 at Nearby Parks
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