Weather on June 18
West Yellowstone, MT
55 Years of Data
About This Date
June 18th in West Yellowstone, MT typically brings cool summer weather, with average highs around 59°F and lows near 35°F. Over 56 years of records, the warmest June 18th was in 1974 (60°F average), while the coldest was 2014 (33°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 45% of June 18th dates historically, with the wettest June 18th recording 2.84" of rain. The last decade has been 2.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.8°F warmer on this date compared to 20-30 years ago.
Planning for June 18th in West Yellowstone, MT? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 60° | 35° | 47° | — | — |
| 2025 | 65° | 43° | 54° | — | — |
| 2024 | 47° | 21° | 34° | — | — |
| 2023 | 42° | 33° | 37° | 2.79" | — |
| 2022 | 64° | 42° | 53° | — | — |
| 2021 | 73° | 40° | 57° | — | — |
| 2020 | 55° | 29° | 42° | 0.51" | — |
| 2019 | 61° | 38° | 50° | — | — |
| 2018 | 43° | 34° | 38° | 1.27" | — |
| 2017 | 56° | 37° | 47° | — | — |
| 2016 | 66° | 45° | 55° | 0.25" | — |
| 2015 | 68° | 43° | 55° | 0.51" | — |
| 2014coldest | 41° | 26° | 33° | 0.51" | — |
| 2013 | 71° | 44° | 58° | — | — |
| 2012 | 57° | 27° | 42° | — | — |
| 2011 | 51° | 30° | 41° | 1.02" | — |
| 2010 | 55° | 22° | 38° | — | — |
| 2009 | 54° | 33° | 43° | 0.25" | — |
| 2008 | 61° | 37° | 49° | — | — |
| 2007 | 52° | 31° | 42° | — | — |
| 2006 | 60° | 33° | 47° | — | — |
| 2005 | 53° | 33° | 43° | — | — |
| 2004 | 52° | 28° | 40° | 0.25" | — |
| 2003 | 70° | 43° | 57° | 0.25" | — |
| 2002 | 47° | 28° | 37° | 1.02" | — |
| 2001 | 49° | 30° | 39° | — | — |
| 2000 | 62° | 37° | 49° | 1.02" | — |
| 1999 | 63° | 40° | 51° | 0.51" | — |
| 1998 | 50° | 29° | 40° | 0.76" | — |
| 1997 | 58° | 37° | 47° | 0.51" | — |
| 1996 | 48° | 24° | 36° | — | — |
| 1995 | 41° | 30° | 36° | 0.25" | — |
| 1994 | 65° | 39° | 52° | 0.25" | — |
| 1993 | 62° | 25° | 44° | — | — |
| 1992 | 62° | 36° | 49° | 0.51" | — |
| 1991 | 59° | 29° | 44° | — | — |
| 1990 | 62° | 36° | 49° | 0.51" | — |
| 1989 | 63° | 38° | 51° | — | — |
| 1988 | 69° | 42° | 55° | — | — |
| 1987 | 65° | 36° | 50° | 0.25" | — |
| 1986 | 67° | 44° | 56° | — | — |
| 1985 | 71° | 32° | 52° | — | — |
| 1984 | 53° | 34° | 43° | — | — |
| 1983 | 48° | 31° | 40° | 0.25" | — |
| 1982 | 71° | 34° | 52° | — | — |
| 1981 | 58° | 33° | 45° | — | — |
| 1980 | 77° | 43° | 60° | — | — |
| 1979 | 64° | 40° | 52° | 0.18" | — |
| 1978 | 69° | 32° | 51° | — | — |
| 1977 | 70° | 38° | 54° | — | — |
| 1976 | 55° | 36° | 45° | 2.84" | — |
| 1975 | 50° | 40° | 45° | 0.76" | — |
| 1974warmest | 79° | 42° | 60° | — | — |
| 1973 | 50° | 27° | 38° | 0.18" | — |
| 1972 | 67° | 46° | 56° | — | — |
| 1971 | 73° | 38° | 55° | — | — |
West Yellowstone, MT Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
West Yellowstone, MT Monthly Precipitation
Average rainfall and snowfall per month, in inches.
West Yellowstone, MT Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit West Yellowstone, MT
West Yellowstone, MT has no months that meet our "pleasant" threshold — every season has tradeoffs.