Weather on October 21
Olathe, KS
55 Years of Data
Avg High
68°F
Avg Low
47°F
Warmest
1979
76°F avg
Coldest
1987
39°F avg
About This Date
October 21st in Olathe, KS typically brings mild fall weather, with average highs around 68°F and lows near 47°F. Over 55 years of records, the warmest October 21st was in 1979 (76°F average), while the coldest was 1987 (39°F) — a 37°F range across recorded history. Rain or other precipitation has occurred on about 18% of October 21st dates historically, with the wettest October 21st recording 3.35" of rain. The last decade has been 1.5°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.5°F cooler on this date compared to 20-30 years ago.
Planning for October 21st in Olathe, KS? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 65° | 45° | 55° | — | — |
| 2024 | 79° | 49° | 64° | — | — |
| 2023 | 81° | 52° | 66° | — | — |
| 2022 | 86° | 50° | 68° | — | — |
| 2021 | 60° | 42° | 51° | — | — |
| 2020 | 51° | 41° | 46° | 0.41" | — |
| 2019 | 56° | 43° | 49° | — | — |
| 2018 | 62° | 30° | 46° | — | — |
| 2017 | 75° | 51° | 63° | 3.35" | — |
| 2016 | 62° | 38° | 50° | — | — |
| 2015 | 80° | 62° | 71° | — | — |
| 2014 | 74° | 45° | 59° | — | — |
| 2013 | 55° | 39° | 47° | — | — |
| 2012 | 74° | 50° | 62° | — | — |
| 2011 | 70° | 31° | 51° | — | — |
| 2010 | 72° | 48° | 60° | — | — |
| 2009 | 65° | 56° | 60° | 0.36" | — |
| 2008 | 67° | 47° | 57° | — | — |
| 2007 | 82° | 56° | 69° | — | — |
| 2006 | 71° | 38° | 54° | — | — |
| 2005 | 54° | 47° | 50° | 0.13" | — |
| 2004 | 54° | 50° | 52° | 0.1" | — |
| 2003 | 87° | 56° | 71° | — | — |
| 2002 | 59° | 40° | 49° | — | — |
| 2001 | 75° | 61° | 68° | — | — |
| 2000 | 70° | 53° | 61° | — | — |
| 1999 | 80° | 46° | 63° | — | — |
| 1998 | 62° | 48° | 55° | — | — |
| 1997 | 56° | 41° | 48° | — | — |
| 1996 | 67° | 46° | 56° | — | — |
| 1995 | 60° | 33° | 47° | — | — |
| 1994 | 72° | 54° | 63° | — | — |
| 1993 | 63° | 38° | 50° | — | — |
| 1992 | 80° | 54° | 67° | — | — |
| 1991 | 78° | 47° | 62° | — | — |
| 1990 | 66° | 41° | 54° | 0.08" | — |
| 1989 | 67° | 63° | 65° | — | — |
| 1988 | 69° | 45° | 57° | — | — |
| 1987coldest | 51° | 27° | 39° | — | — |
| 1986 | 71° | 51° | 61° | — | — |
| 1985 | 69° | 54° | 61° | — | — |
| 1984 | 55° | 40° | 47° | 1.65" | — |
| 1983 | 51° | 46° | 49° | 2.21" | — |
| 1982 | 53° | 27° | 40° | — | — |
| 1981 | 58° | 48° | 53° | — | — |
| 1980 | 74° | 49° | 61° | — | — |
| 1979warmest | 85° | 68° | 76° | — | — |
| 1978 | 89° | 55° | 72° | — | — |
| 1977 | 82° | 55° | 69° | — | — |
| 1976 | 58° | 35° | 46° | — | — |
| 1975 | 81° | 58° | 69° | — | — |
| 1974 | 67° | 41° | 54° | — | — |
| 1973 | 78° | 50° | 64° | — | — |
| 1972 | 54° | 44° | 49° | 1.02" | — |
| 1971 | 66° | 56° | 61° | 2.79" | — |
55 years of data from OLATHE 3E