Weather on July 21 at Grand Teton
Grand Teton National Park
Based on 56 years of data from Jackson, WY
Elevation Note: Grand Teton sits at 6,800 ft. Expect temperatures 24°F cooler than the data shown below, which comes from Jackson, WY at a lower elevation.
Planning Your Visit
July 21st in Grand Teton National Park (via Jackson, WY) typically brings warm summer weather, with average highs around 82°F and lows near 43°F — a 39°F daily swing. Over 56 years of records, the warmest July 21st was in 2026 (76°F average), while the coldest was 1972 (54°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 25% of July 21st dates historically, with the wettest July 21st recording 0.67" 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 July 21st in Grand Teton? Stay hydrated and seek shade during peak afternoon hours.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 89°F | 62°F | 0.07" | 0" |
| 2025 | 80°F | 48°F | 0.01" | 0" |
| 2024 | 80°F | 42°F | 0.04" | 0" |
| 2023 | 81°F | 43°F | 0.02" | 0" |
| 2022 | 82°F | 49°F | 0" | 0" |
| 2021 | 81°F | 46°F | 0.09" | 0" |
| 2020 | 78°F | 39°F | 0" | 0" |
| 2019 | 79°F | 37°F | 0" | 0" |
| 2018 | 85°F | 46°F | 0" | 0" |
| 2017 | 82°F | 45°F | 0.33" | 0" |
| 2016 | 85°F | 39°F | 0" | 0" |
| 2015 | 68°F | 39°F | 0.01" | 0" |
| 2014 | 81°F | 58°F | 0" | 0" |
| 2013 | 83°F | 38°F | 0" | 0" |
| 2012 | 82°F | 55°F | 0" | -- |
| 2011 | 78°F | 36°F | 0" | 0" |
| 2010 | 79°F | 34°F | 0" | 0" |
| 2009 | 81°F | 35°F | 0" | 0" |
| 2008 | 85°F | 43°F | 0" | 0" |
| 2007 | 92°F | 38°F | 0" | 0" |
| 2006 | 90°F | 48°F | -- | -- |
| 2005 | 91°F | 40°F | -- | -- |
| 2004 | 81°F | 44°F | -- | -- |
| 2003 | 94°F | 51°F | 0" | 0" |
| 2002 | 85°F | 41°F | -- | -- |
| 2001 | 78°F | 50°F | 0" | -- |
| 2000 | 84°F | 38°F | 0" | 0" |
| 1999 | 84°F | 42°F | -- | -- |
| 1998 | 91°F | 49°F | 0" | 0" |
| 1997 | 76°F | 42°F | 0" | -- |
| 1996 | 79°F | 39°F | 0" | 0" |
| 1995 | 77°F | 43°F | 0" | 0" |
| 1994 | 89°F | 32°F | 0" | 0" |
| 1993 | 80°F | 40°F | 0" | 0" |
| 1992 | 78°F | 48°F | 0.3" | 0" |
| 1991 | 85°F | 35°F | 0" | 0" |
| 1990 | 74°F | 41°F | 0.02" | 0" |
| 1989 | 92°F | 44°F | 0" | 0" |
| 1988 | 93°F | 32°F | 0" | 0" |
| 1987 | 79°F | 50°F | 0.67" | 0" |
| 1986 | 83°F | 40°F | 0" | 0" |
| 1985 | 88°F | 42°F | 0" | 0" |
| 1984 | 73°F | 50°F | 0" | 0" |
| 1983 | 83°F | 33°F | 0" | 0" |
| 1982 | 89°F | 44°F | 0" | 0" |
| 1981 | 85°F | 37°F | 0" | 0" |
| 1980 | 84°F | 35°F | 0" | 0" |
| 1979 | 84°F | 39°F | 0" | 0" |
| 1978 | 81°F | 42°F | 0" | 0" |
| 1977 | 83°F | 53°F | 0" | 0" |
| 1976 | 80°F | 40°F | 0" | 0" |
| 1975 | 78°F | 42°F | 0.02" | 0" |
| 1974 | 84°F | 41°F | 0" | 0" |
| 1973 | 70°F | 45°F | 0.25" | 0" |
| 1972 | 66°F | 42°F | 0.27" | 0" |
| 1971 | 78°F | 51°F | 0.09" | 0" |