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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Hazardous Weather Conditions

Current conditions at

Olathe, Johnson County Executive Airport (KOJC)

Lat: 38.85°NLon: 94.74°WElev: 1096ft.

Fair

77°F

25°C

Humidity 74%
Wind Speed S 5 mph
Barometer 29.96 in (1013.2 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 19 Sep 12:53 am CDT
Extended Forecast for

Shawnee Mission KS

  • Overnight

    Overnight: Mostly clear, with a low around 75. South southwest wind around 9 mph, with gusts as high as 20 mph.

    Low: 75 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 95. Heat index values as high as 101. South southwest wind 9 to 14 mph, with gusts as high as 24 mph.

    High: 95 °F

    Sunny

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, mainly before 2am, then showers likely and possibly a thunderstorm after 3am. Increasing clouds, with a low around 69. West southwest wind 5 to 9 mph becoming light and variable after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 69 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 83. North wind 3 to 6 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. North northeast wind 5 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 63 °F

    Showers
    Likely

  • Monday

    Monday: A chance of showers before 1pm. Mostly cloudy, with a high near 72. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 72 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 75. South southwest wind around 9 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 95. Heat index values as high as 101. South southwest wind 9 to 14 mph, with gusts as high as 24 mph.
Saturday Night
Showers and thunderstorms likely, mainly before 2am, then showers likely and possibly a thunderstorm after 3am. Increasing clouds, with a low around 69. West southwest wind 5 to 9 mph becoming light and variable after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 83. North wind 3 to 6 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. North northeast wind 5 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Monday
A chance of showers before 1pm. Mostly cloudy, with a high near 72. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Mostly cloudy, with a low around 56.
Tuesday
Partly sunny, with a high near 68.
Tuesday Night
Partly cloudy, with a low around 51.
Wednesday
Mostly sunny, with a high near 71.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
Partly sunny, with a high near 73.
Thursday Night
Mostly cloudy, with a low around 58.
Friday
Partly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
Shawnee Mission KS
 38.88°N 94.69°W (Elev. 991 ft)
Last Update:
11:41 pm CDT Sep 18, 2026
Forecast Valid:
1am CDT Sep 19, 2026-6pm CDT Sep 25, 2026
 
Forecast Discussion
 
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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