As of 22:38 CDT

Olathe, KS weather in September

67°

Olathe, Tuesday, 6 October, 22:38

Clear. Feels like 67°. High 82°, low 51°.

Pressure29.94 inHg

Wind6.9 mph S

Humidity72%

Visibility6.2 mi

Dew point58°

See detailed hourly forecast

In September, Olathe, KS averages a high of 78.1° and a low of 61.8°. About 3.8 inches of precipitation fall over the month (8 wet days). The record high is 99.5° (2000) and the record low 35.4° (1984). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	83.1°	67.6°	33%	99.1° (2011)	54° (1967)
2	83.3°	67.1°	27%	99.5° (2000)	51.6° (1974)
3	83.5°	66.9°	27%	96.6° (2000)	48.2° (1974)
4	82.6°	66.6°	28%	93.7° (2023)	45.1° (1974)
5	82.8°	65.8°	23%	96.1° (2023)	46.2° (1974)
6	82.4°	65.7°	25%	96.1° (1990)	50.5° (1988)
7	82°	65.5°	32%	94.3° (2013)	51.1° (2017)
8	80.8°	64.8°	30%	96.6° (2013)	50.4° (1986)
9	80.2°	63.9°	23%	93.6° (1970)	49.8° (2008)
10	80.4°	63.1°	23%	91.6° (2000)	49.1° (1962)
11	80.2°	63.1°	28%	95.7° (2000)	49.5° (1968)
12	80.2°	63.7°	30%	91.8° (1980)	50.2° (1989)
13	78.6°	62.6°	33%	92.5° (2025)	41.9° (2014)
14	77.4°	62.6°	32%	90.5° (1971)	45.7° (1974)
15	76.1°	61.7°	40%	90.1° (2019)	41.9° (1961)
16	76.8°	61°	30%	93.4° (1978)	44.8° (1961)
17	77.7°	61.5°	32%	91° (2025)	47.8° (1981)
18	78.3°	61.9°	38%	93.2° (2022)	43.3° (1981)
19	78.1°	62.4°	28%	95.2° (2022)	42.1° (1991)
20	77.5°	60.8°	27%	95.4° (2022)	42.3° (1991)
21	75.4°	59.9°	35%	89.8° (1980)	43.2° (1995)
22	74.1°	58.6°	28%	87.3° (2017)	37.9° (1995)
23	72.9°	57.2°	37%	85.6° (2016)	39.9° (1995)
24	73.8°	57.6°	32%	86.7° (2007)	38.3° (1989)
25	75.2°	57.6°	33%	87.4° (1998)	40.6° (2000)
26	73.9°	56.5°	18%	87.3° (1990)	41.9° (1984)
27	74.7°	56.7°	15%	88.7° (2019)	45.3° (1985)
28	73.6°	57.2°	20%	86.4° (2021)	41.4° (1967)
29	74.1°	56.1°	15%	88.2° (2023)	38.5° (1967)
30	74.7°	57.2°	18%	87.8° (1981)	35.4° (1984)