Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Ottawa Municipal Airport (KOWI)

Lat: 38.54°NLon: 95.25°WElev: 958ft.

Fair

72°F

22°C

Humidity 88%
Wind Speed Calm
Barometer 30.04 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 17 Aug 9:10 pm CDT
Extended Forecast for

Ottawa KS

  • Tonight

    Tonight: Mostly clear, with a low around 67. Calm wind becoming southeast around 5 mph.

    Low: 67 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers between 11am and noon.  Sunny, with a high near 93. South wind 5 to 10 mph.  Chance of precipitation is 20%.

    High: 93 °F

    Slight Chance
    Showers then
    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then a chance of showers and thunderstorms after 4am.  Increasing clouds, with a low around 69. Southeast wind around 5 mph becoming northeast after midnight.  Chance of precipitation is 60%.

    Low: 69 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms before 1pm.  Mostly cloudy, with a high near 86. Northeast wind 5 to 10 mph.

    High: 86 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers, with thunderstorms also possible after 10pm.  Partly cloudy, with a low around 66. Northeast wind around 5 mph becoming calm  after midnight.  Chance of precipitation is 20%.

    Low: 66 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: Mostly sunny, with a high near 87. Calm wind becoming northeast around 5 mph in the morning.

    High: 87 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 66. East wind around 5 mph becoming calm.

    Low: 66 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 89. Calm wind becoming east around 5 mph.

    High: 89 °F

    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 1am.  Mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 67. Calm wind becoming southeast around 5 mph.
Tuesday
A slight chance of showers between 11am and noon. Sunny, with a high near 93. South wind 5 to 10 mph. Chance of precipitation is 20%.
Tuesday Night
A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 69. Southeast wind around 5 mph becoming northeast after midnight. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 86. Northeast wind 5 to 10 mph.
Wednesday Night
A slight chance of showers, with thunderstorms also possible after 10pm. Partly cloudy, with a low around 66. Northeast wind around 5 mph becoming calm after midnight. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 87. Calm wind becoming northeast around 5 mph in the morning.
Thursday Night
Mostly clear, with a low around 66. East wind around 5 mph becoming calm.
Friday
Sunny, with a high near 89. Calm wind becoming east around 5 mph.
Friday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 67. Calm wind.
Saturday
Mostly sunny, with a high near 90.
Saturday Night
Mostly clear, with a low around 66.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 89.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
Ottawa KS
 38.62°N 95.26°W
6:11 pm CDT Aug 17, 2026
9pm CDT Aug 17, 2026-6pm CDT Aug 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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