Weather on November 18
Boise, ID
55 Years of Data
Avg High
48°F
Avg Low
30°F
Warmest
2007
55°F avg
Coldest
2014
13°F avg
About This Date
November 18th in Boise, ID typically brings chilly fall weather, with average highs around 48°F and lows near 30°F. Over 55 years of records, the warmest November 18th was in 2007 (55°F average), while the coldest was 2014 (13°F) — a 42°F range across recorded history. Rain or other precipitation has occurred on about 38% of November 18th dates historically, with the wettest November 18th recording 1.4" of rain. The last decade has been 1.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.1°F warmer on this date compared to 20-30 years ago.
Planning for November 18th in Boise, ID? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 52° | 39° | 45° | — | — |
| 2024 | 43° | 29° | 36° | 0.08" | — |
| 2023 | 57° | 39° | 48° | 0.05" | — |
| 2022 | 34° | 23° | 29° | — | — |
| 2021 | 46° | 31° | 39° | 0.2" | — |
| 2020 | 55° | 41° | 48° | 0.84" | — |
| 2019 | 59° | 36° | 47° | — | — |
| 2018 | 48° | 25° | 37° | — | — |
| 2017 | 47° | 30° | 39° | — | — |
| 2016 | 51° | 26° | 39° | — | — |
| 2015 | 53° | 35° | 44° | 0.03" | — |
| 2014coldest | 22° | 4° | 13° | — | — |
| 2013 | 43° | 32° | 37° | — | — |
| 2012 | 55° | 37° | 46° | 0.15" | — |
| 2011 | 45° | 32° | 38° | 0.05" | — |
| 2010 | 58° | 38° | 48° | 0.03" | — |
| 2009 | 48° | 31° | 39° | 0.03" | — |
| 2008 | 53° | 32° | 43° | — | — |
| 2007warmest | 61° | 50° | 55° | 0.3" | — |
| 2006 | 55° | 36° | 45° | — | — |
| 2005 | 46° | 25° | 35° | — | — |
| 2004 | 47° | 31° | 39° | — | — |
| 2003 | 57° | 39° | 48° | — | — |
| 2002 | 50° | 32° | 41° | — | — |
| 2001 | 50° | 32° | 41° | — | — |
| 2000 | 29° | 16° | 22° | — | — |
| 1999 | 49° | 28° | 38° | — | — |
| 1998 | 47° | 31° | 39° | — | — |
| 1997 | 51° | 34° | 42° | — | — |
| 1996 | 62° | 39° | 51° | 1.4" | — |
| 1995 | 58° | 37° | 47° | 0.03" | — |
| 1994 | 32° | 11° | 21° | — | — |
| 1993 | 45° | 18° | 31° | — | — |
| 1992 | 47° | 31° | 39° | — | — |
| 1991 | 47° | 30° | 38° | 0.08" | — |
| 1990 | 49° | 33° | 41° | — | — |
| 1989 | 53° | 36° | 44° | — | — |
| 1988 | 44° | 30° | 37° | — | — |
| 1987 | 48° | 26° | 37° | — | — |
| 1986 | 61° | 36° | 48° | 0.03" | — |
| 1985 | 31° | 7° | 19° | — | — |
| 1984 | 46° | 31° | 38° | 0.41" | — |
| 1983 | 49° | 28° | 38° | — | — |
| 1982 | 52° | 43° | 47° | 0.66" | — |
| 1981 | 49° | 31° | 40° | — | — |
| 1980 | 48° | 25° | 36° | — | — |
| 1979 | 40° | 31° | 35° | 0.3" | — |
| 1978 | 54° | 21° | 37° | — | — |
| 1977 | 39° | 17° | 28° | — | — |
| 1976 | 57° | 34° | 45° | — | — |
| 1975 | 44° | 20° | 32° | — | — |
| 1974 | 52° | 40° | 46° | 0.15" | — |
| 1973 | 46° | 34° | 40° | 0.43" | — |
| 1972 | 47° | 34° | 40° | 0.23" | — |
| 1971 | 42° | 30° | 36° | 0.03" | — |
55 years of data from BOISE AIR TERMINAL