Weather on October 18
Meridian, ID
55 Years of Data
Avg High
66°F
Avg Low
39°F
Warmest
2003
66°F avg
Coldest
1984
34°F avg
About This Date
October 18th in Meridian, ID typically brings mild fall weather, with average highs around 66°F and lows near 39°F — a 27°F daily swing. Over 55 years of records, the warmest October 18th was in 2003 (66°F average), while the coldest was 1984 (34°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 15% of October 18th dates historically, with the wettest October 18th recording 0.97" 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 October 18th in Meridian, ID? Great weather for outdoor activities.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 63° | 36° | 49° | — | — |
| 2024 | 56° | 34° | 45° | — | — |
| 2023 | 75° | 48° | 62° | — | — |
| 2022 | 77° | 46° | 62° | — | — |
| 2021 | 63° | 47° | 55° | — | — |
| 2020 | 71° | 44° | 58° | — | — |
| 2019 | 60° | 38° | 49° | 0.03" | — |
| 2018 | 67° | 42° | 54° | — | — |
| 2017 | 76° | 38° | 57° | — | — |
| 2016 | 53° | 44° | 49° | 0.97" | — |
| 2015 | 66° | 54° | 60° | 0.23" | — |
| 2014 | 71° | 42° | 57° | — | — |
| 2013 | 62° | 32° | 47° | — | — |
| 2012 | 65° | 37° | 51° | — | — |
| 2011 | 67° | 41° | 54° | — | — |
| 2010 | 67° | 38° | 52° | — | — |
| 2009 | 71° | 49° | 60° | 0.23" | — |
| 2008 | 74° | 47° | 60° | — | — |
| 2007 | 51° | 35° | 43° | 0.03" | — |
| 2006 | 57° | 34° | 45° | — | — |
| 2005 | 73° | 44° | 59° | — | — |
| 2004 | 54° | 44° | 49° | — | — |
| 2003warmest | 82° | 50° | 66° | — | — |
| 2002 | 69° | 40° | 54° | — | — |
| 2001 | 60° | 32° | 46° | — | — |
| 2000 | 69° | 46° | 58° | — | — |
| 1999 | 64° | 33° | 49° | — | — |
| 1998 | 63° | 35° | 49° | — | — |
| 1997 | 68° | 42° | 55° | — | — |
| 1996 | 65° | 43° | 54° | 0.05" | — |
| 1995 | 70° | 45° | 57° | — | — |
| 1994 | 62° | 37° | 50° | — | — |
| 1993 | 62° | 35° | 49° | — | — |
| 1992 | 67° | 36° | 51° | — | — |
| 1991 | 61° | 27° | 44° | — | — |
| 1990 | 58° | 43° | 50° | 0.38" | — |
| 1989 | 73° | 41° | 57° | — | — |
| 1988 | 73° | 35° | 54° | — | — |
| 1987 | 67° | 25° | 46° | — | — |
| 1986 | 63° | 42° | 52° | — | — |
| 1985 | 71° | 29° | 50° | — | — |
| 1984coldest | 49° | 20° | 34° | — | — |
| 1983 | 59° | 36° | 47° | — | — |
| 1982 | 71° | 48° | 60° | — | — |
| 1981 | 71° | 32° | 52° | — | — |
| 1980 | 63° | 28° | 45° | — | — |
| 1979 | 54° | 49° | 51° | 0.97" | — |
| 1978 | 73° | 36° | 54° | — | — |
| 1977 | 78° | 37° | 58° | — | — |
| 1976 | 62° | 27° | 44° | — | — |
| 1975 | 71° | 45° | 58° | — | — |
| 1974 | 72° | 34° | 53° | — | — |
| 1973 | 76° | 38° | 57° | — | — |
| 1972 | 67° | 34° | 50° | — | — |
| 1971 | 55° | 25° | 40° | — | — |
55 years of data from KUNA