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

Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Hazardous Weather Conditions

Current conditions at

Wilmington, Airborne Airpark Airport (KILN)

Lat: 39.43°NLon: 83.78°WElev: 1076ft.

Thunderstorm in Vicinity Light Rain

70°F

21°C

Humidity 97%
Wind Speed W 15 G 28 mph
Barometer 29.53 in (998.8 mb)
Dewpoint 69°F (21°C)
Visibility 7.00 mi
Last update 18 Jun 2:54 am EDT
Extended Forecast for

Port William OH

Tornado Watch June 18, 03:08am until June 18, 05:00am
Click here for hazard details and duration
Tornado Watch
  •  
    Tornado Watch June 18, 03:08am until June 18, 05:00am

    NOW until 5:00am Thu

    Tornado Watch

  • Overnight

    Low: 68 °F

    Severe
    Thunderstorms
    and Breezy

  • Thursday

    Thursday: A chance of showers and thunderstorms before 8am, then a slight chance of showers after 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 79. Breezy, with a west wind 17 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Breezy.
    Chance
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 57. West wind 5 to 9 mph becoming calm after midnight.

    Low: 57 °F

    Decreasing
    Clouds

  • Juneteenth

    Juneteenth: Sunny, with a high near 76. Light west wind increasing to 9 to 14 mph in the morning.

    High: 76 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 57. West wind 5 to 8 mph becoming calm after midnight.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 79. Chance of precipitation is 20%.

    High: 79 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 50%.

    High: 80 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

Overnight
Showers and possibly a thunderstorm before 5am, then a chance of showers and thunderstorms after 5am. Some of the storms could be severe. Low around 68. Breezy, with a southwest wind around 22 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms before 8am, then a slight chance of showers after 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 79. Breezy, with a west wind 17 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 57. West wind 5 to 9 mph becoming calm after midnight.
Juneteenth
Sunny, with a high near 76. Light west wind increasing to 9 to 14 mph in the morning.
Friday Night
Mostly clear, with a low around 57. West wind 5 to 8 mph becoming calm after midnight.
Saturday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 79. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 60.
Sunday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 50%.
Sunday Night
A chance of showers and thunderstorms before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then showers after 2am. Low around 63. Chance of precipitation is 90%.
Monday
Showers likely, mainly before 2pm. Mostly cloudy, with a high near 76. Breezy. Chance of precipitation is 60%.
Monday Night
A chance of showers. Partly cloudy, with a low around 56. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Port William OH
 39.57°N 83.79°W (Elev. 997 ft)
Last Update:
2:43 am EDT Jun 18, 2026
Forecast Valid:
3am EDT Jun 18, 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