Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Topeka, Philip Billard Municipal Airport (KTOP)

Lat: 39.07°NLon: 95.63°WElev: 879ft.

Thunderstorm in Vicinity

78°F

26°C

Humidity 74%
Wind Speed NE 5 mph
Barometer 29.87 in (1010.7 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 18 Aug 9:53 pm CDT
Extended Forecast for

3 Miles SSW Grantville KS

Severe T-storm Watch until August 19, 04:00am
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch until August 19, 04:00am

    NOW until 4:00am Wed

    Severe T-storm Watch

  • Tonight

    Low: 70 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly before noon.  Cloudy through mid morning, then gradual clearing, with a high near 84. North wind around 5 mph.

    High: 84 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms between 8pm and 9pm.  Increasing clouds, with a low around 66. Northeast wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 20%.

    Low: 66 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 86. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 67. East wind around 5 mph becoming calm.

    Low: 67 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 90. Calm wind becoming west around 5 mph.

    High: 90 °F

    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 1am.  Mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 89. Calm wind becoming east around 5 mph in the afternoon.

    High: 89 °F

    Mostly Sunny

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 3am, then a chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 70. Northeast wind 5 to 10 mph. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly before noon. Cloudy through mid morning, then gradual clearing, with a high near 84. North wind around 5 mph.
Wednesday Night
A slight chance of showers and thunderstorms between 8pm and 9pm. Increasing clouds, with a low around 66. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Thursday
Sunny, with a high near 86. Calm wind becoming northeast around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 67. East wind around 5 mph becoming calm.
Friday
Sunny, with a high near 90. Calm wind becoming west around 5 mph.
Friday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 68. Calm wind.
Saturday
Mostly sunny, with a high near 89. Calm wind becoming east around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 68. East wind around 5 mph.
Sunday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Monday
Mostly sunny, with a high near 91.
Monday Night
Partly cloudy, with a low around 70.
Tuesday
Mostly sunny, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Grantville KS
 39.04°N 95.57°W
10:01 pm CDT Aug 18, 2026
10pm CDT Aug 18, 2026-6pm CDT Aug 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database