National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Excessive Rainfall and Tropical Storm in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce considerable, potentially life-threatening, flooding across the lower Mississippi River Valley and central Great Lakes region through tonight. Tropical Storm Arthur will move northeastward along the Texas coast today and then move inland over southwestern Louisiana by tonight. An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana. Read More >

Hazardous Weather Conditions

Current conditions at

Hardin County Airport (KI95)

Lat: 40.61°NLon: 83.64°WElev: 1029ft.

Partly Cloudy

66°F

19°C

Humidity 100%
Wind Speed S 8 G 16 mph
Barometer 29.61 in
Dewpoint 66°F (19°C)
Visibility 8.00 mi
Last update 17 Jun 6:15 pm EDT
Extended Forecast for

Roundhead OH

  • Tonight

    Tonight: Showers and thunderstorms before 2am, then a chance of showers. Low around 66. Breezy, with a southwest wind 17 to 25 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 66 °F

    Showers and
    Breezy

  • Thursday

    Thursday: Increasing clouds, with a high near 74. Breezy, with a west wind 18 to 21 mph, with gusts as high as 32 mph.

    High: 74 °F

    Increasing
    Clouds and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56. West wind 5 to 9 mph becoming light after midnight.

    Low: 56 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 75. West wind 7 to 14 mph.

    High: 75 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 56. Northwest wind 5 to 10 mph becoming light after midnight.

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 77. Chance of precipitation is 20%.

    High: 77 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 78. Chance of precipitation is 50%.

    High: 78 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 62. Chance of precipitation is 80%.

    Low: 62 °F

    Showers

Detailed Forecast

Tonight
Showers and thunderstorms before 2am, then a chance of showers. Low around 66. Breezy, with a southwest wind 17 to 25 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday
Increasing clouds, with a high near 74. Breezy, with a west wind 18 to 21 mph, with gusts as high as 32 mph.
Thursday Night
Mostly clear, with a low around 56. West wind 5 to 9 mph becoming light after midnight.
Juneteenth
Sunny, with a high near 75. West wind 7 to 14 mph.
Friday Night
Mostly clear, with a low around 56. Northwest wind 5 to 10 mph becoming light after midnight.
Saturday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 77. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 59.
Sunday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 78. Chance of precipitation is 50%.
Sunday Night
Showers and possibly a thunderstorm. Low around 62. Chance of precipitation is 80%.
Monday
A chance of showers. Partly sunny, with a high near 75. Chance of precipitation is 40%.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Mostly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Roundhead OH
 40.58°N 83.83°W (Elev. 1001 ft)
Last Update:
4:00 pm EDT Jun 17, 2026
Forecast Valid:
6pm EDT Jun 17, 2026-6pm EDT Jun 24, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation