Weather on October 18
Indianapolis, IN
55 Years of Data
About This Date
October 18th in Indianapolis, IN typically brings mild fall weather, with average highs around 64°F and lows near 42°F. Over 53 years of records, the warmest October 18th was in 2016 (71°F average), while the coldest was 1992 (35°F) — a 36°F range across recorded history. Rain or other precipitation has occurred on about 43% of October 18th dates historically, with the wettest October 18th recording 3.76" 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 Indianapolis, IN? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 79° | 57° | 68° | 1.12" | — |
| 2024 | 66° | 35° | 51° | — | — |
| 2023 | 64° | 43° | 53° | — | — |
| 2022 | 43° | 32° | 37° | 0.13" | — |
| 2021 | 69° | 40° | 54° | — | — |
| 2020 | 63° | 49° | 56° | 0.13" | — |
| 2019 | 60° | 32° | 46° | — | — |
| 2018 | 55° | 30° | 43° | — | — |
| 2017 | 68° | 40° | 54° | — | — |
| 2016warmest | 76° | 66° | 71° | 0.15" | — |
| 2015 | 59° | 29° | 44° | — | — |
| 2014 | 55° | 46° | 51° | 0.13" | — |
| 2012 | 70° | 48° | 59° | 1.68" | — |
| 2011 | 61° | 38° | 49° | 0.38" | — |
| 2010 | 68° | 35° | 52° | 0.2" | — |
| 2009 | 47° | 27° | 37° | — | — |
| 2008 | 58° | 42° | 50° | — | — |
| 2007 | 75° | 48° | 62° | 3.76" | — |
| 2006 | 60° | 55° | 58° | 0.15" | — |
| 2005 | 73° | 49° | 61° | — | — |
| 2004 | 58° | 37° | 47° | 1.14" | — |
| 2003 | 57° | 33° | 45° | — | — |
| 2002 | — | 41° | — | — | — |
| 2000 | 63° | 38° | 50° | — | — |
| 1999 | 56° | 32° | 44° | — | — |
| 1998 | 78° | 60° | 69° | 0.03" | — |
| 1997 | 53° | 38° | 45° | — | — |
| 1996 | 78° | 42° | 60° | 1.7" | — |
| 1995 | 77° | 50° | 64° | — | — |
| 1994 | 60° | 56° | 58° | 0.43" | — |
| 1993 | 61° | 40° | 50° | 0.05" | — |
| 1992coldest | 48° | 22° | 35° | — | — |
| 1991 | 75° | 40° | 57° | — | — |
| 1990 | 79° | 40° | 59° | 1.6" | — |
| 1989 | 55° | 35° | 45° | 0.56" | — |
| 1988 | 70° | 54° | 62° | 2.59" | — |
| 1987 | 59° | 32° | 46° | — | — |
| 1986 | 59° | 38° | 48° | — | — |
| 1985 | 76° | 47° | 61° | — | — |
| 1984 | 67° | 48° | 57° | — | — |
| 1983 | 65° | 51° | 58° | 0.08" | — |
| 1982 | 56° | 43° | 49° | — | — |
| 1981 | 68° | 47° | 57° | 2.49" | — |
| 1980 | 65° | 46° | 55° | 2.62" | — |
| 1979 | 72° | 54° | 63° | — | — |
| 1978 | 58° | 37° | 47° | — | — |
| 1977 | 61° | 30° | 45° | — | — |
| 1976 | 50° | 28° | 39° | — | — |
| 1975 | 53° | 42° | 48° | 2.67" | — |
| 1974 | 71° | 40° | 55° | — | — |
| 1973 | 61° | 40° | 50° | — | — |
| 1972 | 53° | 37° | 45° | 0.05" | — |
| 1971 | 75° | 55° | 65° | — | — |
Indianapolis, IN Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Indianapolis, IN Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Indianapolis, IN 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 Indianapolis, IN
Indianapolis, IN has no months that meet our "pleasant" threshold — every season has tradeoffs.