Weather on July 18 at Yellowstone
Yellowstone National Park
Based on 55 years of data from Jackson, WY
Elevation Note: Yellowstone sits at 7,350 ft. Expect temperatures 26°F cooler than the data shown below, which comes from Jackson, WY at a lower elevation.
Planning Your Visit
July 18th in Yellowstone 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 55 years of records, the warmest July 18th was in 2011 (72°F average), while the coldest was 1993 (55°F) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 18% of July 18th dates historically, with the wettest July 18th recording 1.14" 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 18th in Yellowstone? Stay hydrated and seek shade during peak afternoon hours.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 82°F | 46°F | 0" | -- |
| 2024 | 83°F | 42°F | 0" | 0" |
| 2023 | 82°F | 51°F | 0" | 0" |
| 2022 | 89°F | 53°F | 0.03" | 0" |
| 2021 | 85°F | 38°F | 0" | 0" |
| 2020 | 83°F | 47°F | 0" | 0" |
| 2019 | 75°F | 53°F | 0" | 0" |
| 2018 | 82°F | 45°F | 0" | 0" |
| 2017 | 80°F | 42°F | 0.81" | 0" |
| 2016 | 81°F | 42°F | 0" | 0" |
| 2015 | 68°F | 45°F | 0" | 0" |
| 2014 | 78°F | 45°F | 0" | 0" |
| 2013 | 83°F | 46°F | 0" | 0" |
| 2012 | 81°F | 48°F | 0" | -- |
| 2011 | 86°F | 58°F | 0.05" | 0" |
| 2010 | 82°F | 54°F | 0" | -- |
| 2009 | 84°F | 31°F | 0" | 0" |
| 2008 | 80°F | 35°F | 0" | 0" |
| 2007 | 89°F | 41°F | 0" | 0" |
| 2006 | 90°F | 42°F | -- | -- |
| 2005 | 82°F | 33°F | -- | -- |
| 2004 | 88°F | 49°F | -- | -- |
| 2003 | 93°F | 48°F | 0" | 0" |
| 2002 | 85°F | 53°F | -- | -- |
| 2001 | 77°F | 50°F | -- | -- |
| 2000 | 82°F | 45°F | 0.66" | 0" |
| 1999 | 80°F | 39°F | 0.66" | -- |
| 1998 | 91°F | -- | 0" | 0" |
| 1997 | 71°F | 45°F | 0" | -- |
| 1996 | 84°F | 42°F | 0" | 0" |
| 1995 | 83°F | 40°F | 0" | 0" |
| 1994 | 89°F | 37°F | 0" | 0" |
| 1993 | 73°F | 37°F | 0.03" | 0" |
| 1992 | 84°F | 42°F | 0" | 0" |
| 1991 | 89°F | 52°F | 0" | 0" |
| 1990 | 89°F | 45°F | 0" | 0" |
| 1989 | 79°F | 38°F | 0" | 0" |
| 1988 | 84°F | 33°F | 0" | 0" |
| 1987 | 70°F | 46°F | 0.69" | 0" |
| 1986 | 73°F | 40°F | 0" | 0" |
| 1985 | 80°F | 40°F | 0.28" | 0" |
| 1984 | 89°F | 40°F | 0" | 0" |
| 1983 | 85°F | 35°F | 0" | 0" |
| 1982 | 79°F | 35°F | 0" | 0" |
| 1981 | 87°F | 40°F | 0" | 0" |
| 1980 | 80°F | 32°F | 0" | 0" |
| 1979 | 87°F | 41°F | 0" | 0" |
| 1978 | 81°F | 33°F | 0" | 0" |
| 1977 | 89°F | -- | 0" | 0" |
| 1976 | 79°F | 55°F | 1.14" | 0" |
| 1975 | 76°F | 45°F | 0" | 0" |
| 1974 | 84°F | 39°F | 0" | 0" |
| 1973 | 82°F | 44°F | 0" | 0" |
| 1972 | 81°F | 35°F | 0" | 0" |
| 1971 | 80°F | 47°F | 0.25" | 0" |