WXSIM Forecast for: Olathe Issued by: My KC Weather HQ

Updated: Tuesday, 21-Jul-2026 11:55 am

This afternoon Partly Cloudy Tonight Partly Cloudy Wednesday Mostly Sunny Wednesday night Chance rain Thursday Chance rain Thursday night Chance rain Friday Rain likely Friday night Thunder storm Saturday Fog a.m. Hot! Saturday night Partly Cloudy <.1 in. .1 in. <.1 in. <.1 in. .35 in. <.1 in. High: 94° Low: 68° High: 88° Low: 65° High: 83° Low: 69° High: 79° Low: 74° High: 98° Low: 78° Heat: 99°               Heat: 107°   N 9-19 mph Fresh breeze NNE→ENE 7-18 mph Moderate breeze ENE 7-17 mph Moderate breeze ENE 7-17 mph Moderate breeze ESE 7-16 mph Moderate breeze ESE 8-15 mph Moderate breeze ESE 8-16 mph Moderate breeze ESE 6-16 mph Moderate breeze SSW 6-16 mph Moderate breeze SSW 7-16 mph Moderate breeze UV: 10  Very High  UV: 9  Very High  UV: 9  Very High  UV: 4  Medium  UV: 9  Very High

This afternoon	Fair to partly cloudy. A slight chance of rain. High 94°. Heat index up to 99°. UV index up to 10. Wind north around 9 mph, gusting to 19 mph. Chance of precipitation less than 20 percent. Precipitation mostly less than a tenth of an inch.
Tonight	Fair in the evening, becoming fair to partly cloudy after midnight. Low 68°. Wind north-northeast around 7 mph, gusting to 18 mph, in the evening, becoming east-northeast after midnight.
Wednesday	Partly to mostly sunny. High 88°. UV index up to 9. Wind east-northeast around 7 mph, gusting to 17 mph.
Wednesday night	Partly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. A chance of rain after midnight. Low 65°. Wind east-northeast around 7 mph, gusting to 17 mph. Chance of precipitation 40 percent. Precipitation mostly around a tenth of an inch.
Thursday	Mostly cloudy in the morning, becoming partly cloudy in the afternoon. A chance of rain. High 83°. UV index up to 9. Wind east-southeast around 7 mph, gusting to 16 mph. Chance of precipitation 40 percent. Precipitation mostly less than a tenth of an inch.
Thursday night	Partly cloudy in the evening, becoming cloudy after midnight. A slight chance of rain in the evening, then a chance of rain after midnight. Low 69°. Wind east-southeast around 8 mph, gusting to 15 mph. Chance of precipitation 40 percent. Precipitation mostly less than a tenth of an inch.
Friday	Dense overcast in the morning, becoming cloudy in the afternoon. Rain likely. Precipitation showery or intermittent. High 79°. UV index up to 4. Wind east-southeast around 8 mph, gusting to 16 mph. Chance of precipitation 70 percent. Precipitation mostly between a quarter and half an inch.
Friday night	Mostly cloudy. A chance of rain in the evening, then a slight chance of rain after midnight. Scattered thundershowers possible. Low 74°. Wind east-southeast around 6 mph, gusting to 16 mph. Chance of precipitation 30 percent. Precipitation mostly less than a tenth of an inch.
Saturday	Sunny. Patchy light fog in the morning. High 98°. Heat index up to 107°. UV index up to 9. Wind south-southwest around 6 mph, gusting to 16 mph.
Saturday night	Clear in the evening, becoming fair to partly cloudy after midnight. Low 78°. Wind south-southwest around 7 mph, gusting to 16 mph.
Sunday	Sunny. High 102°. Heat index up to 113°. UV index up to 9. Wind south-southwest around 8 mph, gusting to 19 mph, in the morning, becoming 14 mph, gusting to 25 mph, in the afternoon.
Sunday night	Partly cloudy. A slight chance of rain. Scattered thundershowers possible. Low 78°. Wind south-southwest around 15 mph, gusting to 22 mph. Chance of precipitation 20 percent. Precipitation mostly less than a tenth of an inch.
Monday	Sunny. High 105°. Heat index up to 110°. UV index up to 10. Wind south-southwest around 15 mph, gusting to 24 mph.
Monday night	Partly cloudy. Low 76°. Wind south-southwest around 5 mph, gusting to 18 mph, in the evening, becoming east-northeast after midnight.
Tuesday	Mostly cloudy in the morning, becoming partly to mostly cloudy in the afternoon. A slight chance of rain in the afternoon. Scattered thundershowers possible. High 99°. Heat index up to 104°. UV index up to 9. Wind east around 9 mph, gusting to 19 mph. Chance of precipitation less than 20 percent. Precipitation mostly less than a tenth of an inch.
Tuesday night	Mostly cloudy in the evening, becoming partly to mostly cloudy after midnight. A slight chance of rain. Precipitation showery or intermittent. Low 78°. Wind east-southeast around 8 mph, gusting to 19 mph. Chance of precipitation 20 percent. Precipitation mostly less than a tenth of an inch.
Wednesday	Partly to mostly sunny in the morning, becoming sunny in the afternoon. High 99°. Heat index up to 107°. UV index up to 10. Wind south around 10 mph, gusting to 20 mph, in the morning, becoming 14 mph, gusting to 24 mph, in the afternoon.
Wednesday night	Clear in the evening, becoming partly cloudy after midnight. Low 78°. Wind south around 13 mph, gusting to 21 mph.

WXSIM forecast formatting script by Saratoga-Weather.org.