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 >

Hazardous Weather Conditions

Current conditions at

Ottawa Municipal Airport (KOWI)

Lat: 38.54°NLon: 95.25°WElev: 958ft.

Fair

91°F

33°C

Humidity 46%
Wind Speed N 10 mph
Barometer 29.89 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 19 Aug 4:50 pm CDT
Extended Forecast for

3 Miles S Ottawa KS

  • Tonight

    Tonight: Mostly clear, with a low around 68. Northeast wind around 5 mph.

    Low: 68 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 86. North wind around 5 mph.

    High: 86 °F

    Mostly Sunny

  • Thursday Night

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

    Low: 66 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 91. Calm wind.

    High: 91 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 1am.  Mostly clear, with a low around 69. Calm wind becoming southeast around 5 mph.

    Low: 69 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms before 1pm.  Mostly sunny, with a high near 90. Calm wind becoming east around 5 mph in the morning.

    High: 90 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 67. East wind around 5 mph.

    Low: 67 °F

    Mostly Clear

  • Sunday

    Sunday: A slight chance of showers, with thunderstorms also possible after 1pm.  Mostly sunny, with a high near 88. Southeast wind 5 to 10 mph.  Chance of precipitation is 20%.

    High: 88 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 69. East wind around 10 mph.

    Low: 69 °F

    Partly Cloudy
    then Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 68. Northeast wind around 5 mph.
Thursday
Mostly sunny, with a high near 86. North wind around 5 mph.
Thursday Night
Increasing clouds, with a low around 66. East wind around 5 mph becoming calm.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 91. Calm wind.
Friday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 69. Calm wind becoming southeast around 5 mph.
Saturday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 90. Calm wind becoming east around 5 mph in the morning.
Saturday Night
Mostly clear, with a low around 67. East wind around 5 mph.
Sunday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 88. Southeast wind 5 to 10 mph. Chance of precipitation is 20%.
Sunday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69. East wind around 10 mph.
Monday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 90.
Monday Night
Mostly clear, with a low around 69.
Tuesday
Mostly sunny, with a high near 91.
Tuesday Night
Partly cloudy, with a low around 70.
Wednesday
Mostly sunny, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Ottawa KS
 38.55°N 95.28°W
5:06 pm CDT Aug 19, 2026
5pm CDT Aug 19, 2026-6pm CDT Aug 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database