Weather on June 18
Boise, ID
55 Years of Data
About This Date
June 18th in Boise, ID typically brings warm summer weather, with average highs around 81°F and lows near 53°F — a 28°F daily swing. Over 55 years of records, the warmest June 18th was in 1974 (86°F average), while the coldest was 1973 (51°F) — a 35°F range across recorded history. Rain or other precipitation has occurred on about 20% of June 18th dates historically, with the wettest June 18th recording 0.64" 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 18th in Boise, ID? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 93° | 59° | 76° | — | — |
| 2024 | 73° | 42° | 58° | — | — |
| 2023 | 74° | 53° | 63° | 0.13" | — |
| 2022 | 75° | 51° | 63° | — | — |
| 2021 | 97° | 58° | 77° | — | — |
| 2020 | 75° | 48° | 62° | — | — |
| 2019 | 87° | 58° | 72° | — | — |
| 2018 | 74° | 55° | 64° | 0.03" | — |
| 2017 | 85° | 55° | 70° | — | — |
| 2016 | 82° | 55° | 69° | — | — |
| 2015 | 94° | 60° | 77° | — | — |
| 2014 | 65° | 48° | 56° | 0.23" | — |
| 2013 | 88° | 57° | 72° | — | — |
| 2012 | 75° | 54° | 64° | — | — |
| 2011 | 69° | 56° | 62° | 0.36" | — |
| 2010 | 82° | 46° | 64° | — | — |
| 2009 | 78° | 54° | 66° | — | — |
| 2008 | 84° | 54° | 69° | — | — |
| 2007 | 81° | 50° | 65° | — | — |
| 2006 | 87° | 52° | 69° | — | — |
| 2005 | 70° | 51° | 60° | 0.25" | — |
| 2004 | 87° | 54° | 70° | — | — |
| 2003 | 101° | 69° | 85° | — | — |
| 2002 | 72° | 53° | 62° | 0.38" | — |
| 2001 | 75° | 44° | 60° | — | — |
| 2000 | 90° | 56° | 73° | — | — |
| 1999 | 93° | 66° | 80° | — | — |
| 1998 | 83° | 59° | 71° | — | — |
| 1997 | 80° | 57° | 69° | — | — |
| 1996 | 64° | 38° | 51° | — | — |
| 1995 | 66° | 50° | 58° | 0.64" | — |
| 1994 | 81° | 49° | 65° | — | — |
| 1993 | 84° | 52° | 68° | — | — |
| 1992 | 86° | 58° | 72° | 0.33" | — |
| 1991 | 90° | 44° | 67° | — | — |
| 1990 | 80° | 53° | 67° | — | — |
| 1989 | 89° | 51° | 70° | — | — |
| 1988 | 93° | 57° | 75° | — | — |
| 1987 | 71° | 50° | 61° | — | — |
| 1986 | 82° | 58° | 70° | — | — |
| 1985 | 95° | 55° | 75° | — | — |
| 1984 | 82° | 49° | 65° | — | — |
| 1983 | 68° | 47° | 57° | — | — |
| 1982 | 88° | 58° | 73° | — | — |
| 1981 | 78° | 47° | 62° | — | — |
| 1980 | 86° | 54° | 70° | — | — |
| 1979 | 61° | 46° | 53° | 0.23" | — |
| 1978 | 71° | 49° | 60° | 0.08" | — |
| 1977 | 88° | 57° | 72° | — | — |
| 1976 | 83° | 49° | 66° | — | — |
| 1975 | 60° | 48° | 54° | 0.05" | — |
| 1974warmest | 103° | 70° | 86° | — | — |
| 1973coldest | 66° | 36° | 51° | — | — |
| 1972 | 73° | 49° | 61° | — | — |
| 1971 | 75° | 50° | 63° | — | — |
Boise, ID Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Boise, ID Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Boise, ID 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 Boise, ID
Boise, ID has no months that meet our "pleasant" threshold — every season has tradeoffs.