Weather on June 18 at Grand Teton
Grand Teton National Park
Based on 55 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
June 18th in Grand Teton National Park (via Jackson, WY) typically brings pleasant summer weather, with average highs around 70°F and lows near 38°F — a 32°F daily swing. Over 55 years of records, the warmest June 18th was in 1974 (68°F average), while the coldest was 1973 (37°F) — a 31°F range across recorded history. Precipitation has occurred on 36% of recorded June 18th dates, with snow falling 2% of the time (heaviest snowfall: 4"). The last decade has been 4.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.3°F cooler on this date compared to 20-30 years ago.
Planning for June 18th in Grand Teton? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 72°F | 36°F | 0" | 0" |
| 2024 | 58°F | 34°F | 0.08" | 0" |
| 2023 | 63°F | 44°F | 0.05" | 0" |
| 2022 | 84°F | 42°F | 0" | 0" |
| 2021 | 80°F | 32°F | 0" | 0" |
| 2020 | 48°F | 37°F | 0.05" | 0" |
| 2019 | 67°F | 40°F | 0.28" | 0" |
| 2018 | 63°F | 48°F | 2.67" | 0" |
| 2017 | 64°F | 39°F | 0.03" | 0" |
| 2016 | 75°F | 36°F | 0" | 0" |
| 2015 | 77°F | 38°F | 0" | 0" |
| 2014 | 48°F | 36°F | 0.05" | 0" |
| 2013 | 78°F | 36°F | 0" | 0" |
| 2012 | 65°F | 40°F | 0" | -- |
| 2011 | 60°F | 21°F | 0" | 0" |
| 2010 | 64°F | 29°F | 0.51" | -- |
| 2009 | 63°F | 45°F | 0.36" | 0" |
| 2008 | 80°F | 42°F | 0" | 0" |
| 2007 | 62°F | 33°F | 0.25" | -- |
| 2006 | 75°F | 35°F | -- | -- |
| 2005 | 64°F | 35°F | 0" | -- |
| 2004 | 70°F | 46°F | 0.38" | -- |
| 2003 | 82°F | 40°F | 0" | -- |
| 2002 | 78°F | 52°F | 0" | 0" |
| 2001 | 78°F | 50°F | -- | -- |
| 2000 | 78°F | 34°F | -- | -- |
| 1999 | 77°F | 36°F | 0.3" | -- |
| 1998 | 63°F | 41°F | 0" | 0" |
| 1997 | 77°F | 52°F | 1.02" | 0" |
| 1996 | 60°F | 35°F | 0" | -- |
| 1995 | 57°F | 35°F | 0" | -- |
| 1994 | 75°F | 43°F | 0.25" | -- |
| 1993 | 70°F | 36°F | 0" | 0" |
| 1992 | 74°F | 33°F | 0" | 0" |
| 1991 | 70°F | 32°F | 0" | 0" |
| 1990 | 77°F | 30°F | 0" | 0" |
| 1989 | 82°F | 36°F | 0" | 0" |
| 1988 | 82°F | 43°F | 0.28" | 0" |
| 1987 | 79°F | 35°F | 0" | 0" |
| 1986 | 87°F | 36°F | 0" | 0" |
| 1985 | 78°F | 35°F | 0" | 0" |
| 1984 | 60°F | 34°F | 0" | 0" |
| 1983 | 74°F | 41°F | 0" | 0" |
| 1982 | 74°F | 37°F | 0" | 0" |
| 1981 | 65°F | 31°F | 0" | 0" |
| 1980 | 76°F | 34°F | 0" | 0" |
| 1979 | 75°F | 40°F | 0" | 0" |
| 1978 | 74°F | 26°F | 0" | 0" |
| 1977 | 76°F | 49°F | 0.1" | 0" |
| 1976 | 59°F | 38°F | 1.4" | 0" |
| 1975 | 53°F | 37°F | 2.87" | 0" |
| 1974 | 90°F | 47°F | 0" | 0" |
| 1973 | 46°F | 29°F | 0.51" | 4" |
| 1972 | 69°F | 42°F | 0.51" | 0" |
| 1971 | 80°F | 34°F | 0" | 0" |