Severe Weather in the Central U.S.; Heavy Rain in the Ohio Valley and Mid-Atlantic

Scattered severe thunderstorms capable of producing severe gusts, large hail, and perhaps a couple tornadoes are forecast from the north-central High Plains into the Upper Mississippi Valley. Widespread thunderstorms may produce excessive rainfall across portions of the Ohio Valley and Mid-Atlantic. Hot conditions and Critical Fire Weather looms over the Great Basin and Southwest through midweek. Read More >

Hazardous Weather Conditions

Current conditions at

Ottumwa Regional Airport (KOTM)

Lat: 41.1°NLon: 92.44°WElev: 830ft.

Fair

76°F

24°C

Humidity 79%
Wind Speed Vrbl 6 mph
Barometer 29.96 in (1013.8 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 16 Jun 8:53 am CDT
Extended Forecast for

Martinsburg IA

  • Today

    Today: A slight chance of showers and thunderstorms between 10am and 11am.  Mostly sunny, with a high near 87. South wind around 5 mph.  Chance of precipitation is 20%.

    High: 87 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 2am.  Partly cloudy, with a low around 69. South wind 5 to 10 mph.

    Low: 69 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 88. West wind around 10 mph.

    High: 88 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms.  Low around 66. South wind around 10 mph.  Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 66 °F

    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly before 1pm.  Partly sunny, with a high near 81. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 81 °F

    T-storms
    Likely

  • Wednesday Night

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

    Low: 61 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers and thunderstorms between 10am and 11am. Mostly sunny, with a high near 87. South wind around 5 mph. Chance of precipitation is 20%.
Tonight
A 20 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 69. South wind 5 to 10 mph.
Tuesday
A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 88. West wind around 10 mph.
Tuesday Night
Showers and thunderstorms. Low around 66. South wind around 10 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Wednesday
Showers and thunderstorms likely, mainly before 1pm. Partly sunny, with a high near 81. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Mostly clear, with a low around 61.
Juneteenth
Sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 65.
Friday
Sunny, with a high near 89.
Friday Night
Mostly clear, with a low around 75.
Saturday
Sunny, with a high near 93. Breezy.
Saturday Night
Clear, with a low around 75.
Sunday
Sunny, with a high near 93. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Martinsburg IA
 41.18°N 92.27°W (Elev. 810 ft)
9:02 am CDT Jun 16, 2025
9am CDT Jun 16, 2025-6pm CDT Jun 22, 2025
 
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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