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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Sunday could bring areas of flooding to parts of the upper Midwest, central Great Lakes, southern New England and Virginia/North Carolina tidewater region. Read More >

Hazardous Weather Conditions

Current conditions at

Olathe, Johnson County Executive Airport (KOJC)

Lat: 38.85°NLon: 94.74°WElev: 1096ft.

Fair

76°F

24°C

Humidity 82%
Wind Speed SE 5 mph
Barometer 30.14 in (1019.2 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 18 Sep 3:53 am CDT
Extended Forecast for

Shawnee KS

  • Today

    Today: Sunny, with a high near 94. Heat index values as high as 102. Light and variable wind becoming south southwest 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    High: 94 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 74. South wind around 8 mph.

    Low: 74 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 94. Heat index values as high as 100. South southwest wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 10%.

    High: 94 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 69. South wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 81. North wind 3 to 6 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Showers
    Likely

  • Monday

    Monday: Mostly cloudy, with a high near 72.

    High: 72 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 68.

    High: 68 °F

    Mostly Cloudy

Detailed Forecast

Today
Sunny, with a high near 94. Heat index values as high as 102. Light and variable wind becoming south southwest 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Tonight
Partly cloudy, with a low around 74. South wind around 8 mph.
Saturday
A slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 94. Heat index values as high as 100. South southwest wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 10%.
Saturday Night
A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 69. South wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 81. North wind 3 to 6 mph. Chance of precipitation is 60%. 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. Mostly cloudy, with a low around 62. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Mostly cloudy, with a high near 72.
Monday Night
Mostly cloudy, with a low around 55.
Tuesday
Mostly cloudy, with a high near 68.
Tuesday Night
Mostly cloudy, with a low around 52.
Wednesday
Partly sunny, with a high near 71.
Wednesday Night
Mostly cloudy, with a low around 55.
Thursday
Partly sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Shawnee KS
 39.04°N 94.83°W (Elev. 827 ft)
Last Update:
1:56 am CDT Sep 18, 2026
Forecast Valid:
4am CDT Sep 18, 2026-6pm CDT Sep 24, 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