Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Hazardous Weather Conditions

Current conditions at

Ottumwa Regional Airport (KOTM)

Lat: 41.1°NLon: 92.44°WElev: 830ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

2 Miles SSW Ottumwa Industrial Airport IA

  • Overnight

    Overnight: Patchy fog after 3am.  Otherwise, mostly clear, with a low around 63. North northeast wind around 5 mph.

    Low: 63 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 9am.  Otherwise, sunny, with a high near 82. Light east wind.

    High: 82 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 66. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 66 °F

    Mostly Clear

  • Friday

    Friday: A 10 percent chance of showers after 5pm.  Increasing clouds, with a high near 85. Southwest wind 5 to 8 mph.

    High: 85 °F

    Sunny then
    Slight Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am.  Partly cloudy, with a low around 66. North northwest wind 3 to 6 mph.  Chance of precipitation is 20%.

    Low: 66 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 62.

    Low: 62 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Patchy fog after 3am. Otherwise, mostly clear, with a low around 63. North northeast wind around 5 mph.
Thursday
Patchy fog before 9am. Otherwise, sunny, with a high near 82. Light east wind.
Thursday Night
Mostly clear, with a low around 66. Calm wind becoming south southeast around 5 mph after midnight.
Friday
A 10 percent chance of showers after 5pm. Increasing clouds, with a high near 85. Southwest wind 5 to 8 mph.
Friday Night
A slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Partly cloudy, with a low around 66. North northwest wind 3 to 6 mph. Chance of precipitation is 20%.
Saturday
Sunny, with a high near 81.
Saturday Night
Mostly clear, with a low around 61.
Sunday
Mostly sunny, with a high near 79.
Sunday Night
Mostly cloudy, with a low around 62.
Monday
Mostly sunny, with a high near 79.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Mostly sunny, with a high near 83.
Tuesday Night
Partly cloudy, with a low around 66.
Wednesday
Mostly sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Ottumwa Industrial Airport IA
 41.09°N 92.47°W
1:31 am CDT Aug 20, 2026
1am CDT Aug 20, 2026-6pm CDT Aug 26, 2026
 
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Additional Resources

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