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 >

Current conditions at

Flemingsburg Fleming-Mason Airport (KFGX)

Lat: 38.54°NLon: 83.74°WElev: 912ft.

Light Rain

71°F

22°C

Humidity 84%
Wind Speed W 15 G 26 mph
Barometer 29.63 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 18 Jun 5:15 am EDT
Extended Forecast for

Decatur OH

Flood Watch June 18, 05:47am until June 18, 10:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch June 18, 05:47am until June 18, 10:00am

    NOW until 10:00am Thu

    Flood Watch

  • Overnight

    Low: 71 °F

    Showers

  • Thursday

    Thursday: Showers and thunderstorms likely before 10am, then a chance of showers and thunderstorms after 5pm.  Cloudy, then gradually becoming mostly sunny, with a high near 84. West wind around 14 mph, with gusts as high as 26 mph.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 84 °F

    Showers
    Likely then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, mainly before 9pm.  Mostly cloudy, with a low around 59. Northwest wind around 6 mph becoming calm  in the evening.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Juneteenth

    Juneteenth: Sunny, with a high near 79. Light northwest wind increasing to 5 to 10 mph in the afternoon.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 57. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 83. Chance of precipitation is 40%.

    High: 83 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Low around 71. Southwest wind around 18 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers and thunderstorms likely before 10am, then a chance of showers and thunderstorms after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 84. West wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
A chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 59. Northwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Juneteenth
Sunny, with a high near 79. Light northwest wind increasing to 5 to 10 mph in the afternoon.
Friday Night
Mostly clear, with a low around 57. Northwest wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 81.
Saturday Night
Partly cloudy, with a low around 61.
Sunday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers after 2am. Low around 65. Chance of precipitation is 90%.
Monday
Showers, mainly before 2pm. High near 78. Chance of precipitation is 80%.
Monday Night
A chance of showers. Partly cloudy, with a low around 57. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Decatur OH
 38.83°N 83.7°W (Elev. 935 ft)
4:00 am EDT Jun 18, 2026
5am EDT Jun 18, 2026-6pm EDT Jun 24, 2026
 
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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