National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Areas of Extreme Heat and Excessive Rainfall Potential

Dangerous and extreme heat will remain across portions of the central U.S. this week, persisting across the mid to lower Mississippi Valley, Gulf Coast, southern Plains and portions of Texas. A heat wave over the Southwest U.S. will peak this weekend. Heavy to excessive rainfall may produce flash flooding from the Delmarva Peninsula north into the Hudson Valley today and tonight. Read More >

Hazardous Weather Conditions

Current conditions at

Olathe, Johnson County Executive Airport (KOJC)

Lat: 38.85°NLon: 94.74°WElev: 1096ft.

Fair

83°F

28°C

Humidity 77%
Wind Speed NE 5 mph
Barometer 29.89 in (1010.5 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 28 Jul 11:53 am CDT
Extended Forecast for

Lenexa KS

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 88. Heat index values as high as 96. Light and variable wind becoming east southeast around 5 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Chance
    Showers

  • Tonight

    Tonight: A slight chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 74. Light east wind. Chance of precipitation is 20%.

    Low: 74 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 88. Heat index values as high as 95. East southeast wind 6 to 9 mph. Chance of precipitation is 20%.

    High: 88 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 73. East southeast wind 5 to 7 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 73 °F

    Partly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 87. South southeast wind 7 to 10 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 73. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 73 °F

    Chance
    T-storms then
    Showers

  • Friday

    Friday: A chance of showers before 1pm. Mostly sunny, with a high near 88. Chance of precipitation is 50%.

    High: 88 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 88. Heat index values as high as 96. Light and variable wind becoming east southeast around 5 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A slight chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 74. Light east wind. Chance of precipitation is 20%.
Wednesday
A slight chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 88. Heat index values as high as 95. East southeast wind 6 to 9 mph. Chance of precipitation is 20%.
Wednesday Night
A chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 73. East southeast wind 5 to 7 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 87. South southeast wind 7 to 10 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 73. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday
A chance of showers before 1pm. Mostly sunny, with a high near 88. Chance of precipitation is 50%.
Friday Night
Mostly clear, with a low around 69.
Saturday
Mostly sunny, with a high near 83.
Saturday Night
Mostly clear, with a low around 67.
Sunday
Sunny, with a high near 85.
Sunday Night
Clear, with a low around 67.
Monday
Sunny, with a high near 88.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lenexa KS
 38.97°N 94.8°W (Elev. 997 ft)
Last Update:
11:42 am CDT Jul 28, 2026
Forecast Valid:
12pm CDT Jul 28, 2026-6pm CDT Aug 3, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation