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

Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Butler County Regional Airport (KHAO)

Lat: 39.36°NLon: 84.52°WElev: 607ft.

Overcast

63°F

17°C

Humidity 87%
Wind Speed Calm
Barometer 29.75 in (1007.2 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 17 Jun 2:53 am EDT
Extended Forecast for

Hamilton, Butler County Regional Airport OH

  • Overnight

    Overnight: Partly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 83. Calm wind becoming southwest 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 83 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am. Some of the storms could produce heavy rainfall. Low around 69. South wind 14 to 16 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 69 °F

    Chance
    T-storms then
    Heavy Rain

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 81. West wind 10 to 13 mph, with gusts as high as 29 mph.

    High: 81 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 57. Northwest wind around 6 mph becoming calm in the evening.

    Low: 57 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Saturday Night

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

    Low: 61 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 56. Calm wind.
Wednesday
Mostly sunny, with a high near 83. Calm wind becoming southwest 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am. Some of the storms could produce heavy rainfall. Low around 69. South wind 14 to 16 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 81. West wind 10 to 13 mph, with gusts as high as 29 mph.
Thursday Night
Partly cloudy, with a low around 57. Northwest wind around 6 mph becoming calm in the evening.
Juneteenth
Sunny, with a high near 78.
Friday Night
Mostly clear, with a low around 55.
Saturday
Sunny, with a high near 81.
Saturday Night
Partly cloudy, with a low around 61.
Sunday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 50%.
Sunday Night
Showers and possibly a thunderstorm. Low around 65. Chance of precipitation is 80%.
Monday
Showers and thunderstorms. High near 79. Chance of precipitation is 80%.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 59. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hamilton, Butler County Regional Airport OH
 39.37°N 84.53°W (Elev. 699 ft)
Last Update:
3:30 am EDT Jun 17, 2026
Forecast Valid:
3am EDT Jun 17, 2026-6pm EDT Jun 23, 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