Weather on August 18
Olathe, KS
55 Years of Data
Avg High
88°F
Avg Low
67°F
Warmest
2003
89°F avg
Coldest
1981
64°F avg
About This Date
August 18th in Olathe, KS typically brings warm summer weather, with average highs around 88°F and lows near 67°F. Over 55 years of records, the warmest August 18th was in 2003 (89°F average), while the coldest was 1981 (64°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 20% of August 18th dates historically, with the wettest August 18th recording 3.38" of rain. The last decade has been 1.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.0°F cooler on this date compared to 20-30 years ago.
Planning for August 18th in Olathe, KS? Stay hydrated and seek shade during peak afternoon hours.
Cooling Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 94° | 76° | 85° | — | — |
| 2024 | 85° | 68° | 76° | 0.03" | — |
| 2023 | 84° | 60° | 72° | — | — |
| 2022 | 84° | 64° | 74° | — | — |
| 2021 | 87° | 68° | 78° | — | — |
| 2020 | 82° | 62° | 72° | — | — |
| 2019 | 88° | 70° | 79° | 2.54" | — |
| 2018 | 90° | 67° | 78° | — | — |
| 2017 | 86° | 62° | 74° | — | — |
| 2016 | 88° | 67° | 77° | — | — |
| 2015 | 79° | 64° | 71° | 2.54" | — |
| 2014 | 88° | 65° | 76° | — | — |
| 2013 | 81° | 59° | 70° | — | — |
| 2012 | 85° | 52° | 68° | — | — |
| 2011 | 91° | 67° | 79° | 3.38" | — |
| 2010 | 85° | 68° | 76° | — | — |
| 2009 | 76° | 66° | 71° | 1.7" | — |
| 2008 | 82° | 61° | 71° | — | — |
| 2007 | 92° | 72° | 82° | — | — |
| 2006 | 97° | 74° | 85° | — | — |
| 2005 | 85° | 71° | 78° | — | — |
| 2004 | 90° | 69° | 79° | — | — |
| 2003warmest | 103° | 75° | 89° | — | — |
| 2002 | 74° | 66° | 70° | 0.58" | — |
| 2001 | 84° | 67° | 75° | 0.13" | — |
| 2000 | 80° | 65° | 72° | — | — |
| 1999 | 89° | 72° | 80° | — | — |
| 1998 | 96° | 77° | 87° | — | — |
| 1997 | 79° | 62° | 70° | — | — |
| 1996 | 83° | 67° | 75° | — | — |
| 1995 | 94° | 74° | 84° | — | — |
| 1994 | 90° | 67° | 78° | — | — |
| 1993 | 97° | 76° | 86° | — | — |
| 1992 | 85° | 63° | 74° | — | — |
| 1991 | 96° | 65° | 80° | — | — |
| 1990 | 90° | 72° | 81° | — | — |
| 1989 | 88° | 60° | 74° | — | — |
| 1988 | 95° | 74° | 84° | — | — |
| 1987 | 84° | 64° | 74° | 1.42" | — |
| 1986 | 85° | 68° | 76° | — | — |
| 1985 | 78° | 65° | 71° | 0.74" | — |
| 1984 | 96° | 77° | 87° | — | — |
| 1983 | 99° | 75° | 87° | — | — |
| 1982 | 83° | 64° | 73° | — | — |
| 1981coldest | 75° | 53° | 64° | — | — |
| 1980 | 88° | 66° | 77° | — | — |
| 1979 | 89° | 72° | 80° | — | — |
| 1978 | 97° | 79° | 88° | — | — |
| 1977 | 78° | 58° | 68° | — | — |
| 1976 | 93° | 70° | 81° | — | — |
| 1975 | 89° | 63° | 76° | 0.03" | — |
| 1974 | 84° | 59° | 72° | 0.84" | — |
| 1973 | 88° | 68° | 78° | — | — |
| 1972 | 93° | 70° | 81° | — | — |
| 1971 | 92° | 59° | 75° | — | — |
55 years of data from OLATHE 3E