Great Miami River from Sidney to Hamilton, OH
08/12/2026 10:00 PM
70°F
TEMPERATURE
Winds 5 mph SW
Mostly Cloudy
A slight chance of showers and thunderstorms between midnight and 1am, then a chance of showers and thunderstorms between 1am and 2am, then a chance of showers and thunderstorms between 2am and 5am, then patchy fog. Mostly cloudy, with a low around 67. South wind 1 to 7 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.

Alerts

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Flood Watch issued August 12 at 8:52PM EDT until August 14 at 11:00AM EDT by NWS Wilmington OH
NWS Wilmington OH
Category Certainty Severity
Met Possible Severe
Status Urgency Category
Actual Future Met
Effective Ends Expires
08/12/2026 08:52 PM 08/14/2026 11:00 AM 08/13/2026 05:00 AM
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.

* WHERE...Portions of Indiana, including the following counties,
Dearborn, Fayette, Franklin, Ohio, Ripley, Switzerland, Union and
Wayne, Kentucky, including the following counties, Boone, Bracken,
Campbell, Carroll, Gallatin, Grant, Kenton, Lewis, Mason, Owen,
Pendleton and Robertson, and Ohio, including the following
counties, Adams, Auglaize, Brown, Butler, Champaign, Clark,
Clermont, Clinton, Darke, Delaware, Fairfield, Fayette, Franklin,
Greene, Hamilton, Hardin, Highland, Hocking, Licking, Logan,
Madison, Mercer, Miami, Montgomery, Pickaway, Pike, Preble, Ross,
Scioto, Shelby, Union and Warren.

* WHEN...Through Friday morning.

* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Area creeks and streams are running high and could flood with more
heavy rain.

* ADDITIONAL DETAILS...
- Periods of thunderstorms are possible Thursday evening through
the overnight hours. These storms could lead to additional
flooding.
                                            
Moonrise
07:30 AM
Moonset
09:47 PM
Sunrise
06:46 AM
Moon Phase
Waxing crescent
Sunset
08:37 PM

Hourly Forecast

Wed, 10:00 PM

Mostly Cloudy
Winds: 5 mph SW
70°

Wed, 11:00 PM

Mostly Cloudy
Winds: 3 mph SW
69°

Thu, 12:00 AM

Slight Chance Showers And Thunderstorms
Winds: 2 mph SW
69°

Thu, 01:00 AM

Chance Showers And Thunderstorms
Winds: 2 mph SW
69°

Thu, 02:00 AM

Slight Chance Showers And Thunderstorms
Winds: 2 mph N
69°

Thu, 03:00 AM

Mostly Cloudy
Winds: 2 mph SE
69°

Thu, 04:00 AM

Chance Rain Showers
Winds: 1 mph SE
68°

Thu, 05:00 AM

Patchy Fog
Winds: 2 mph S
68°

Thu, 06:00 AM

Patchy Fog
Winds: 1 mph SW
68°

Thu, 07:00 AM

Patchy Fog
Winds: 1 mph NW
67°

Thu, 08:00 AM

Patchy Fog
Winds: 1 mph W
69°

Thu, 09:00 AM

Patchy Fog
Winds: 1 mph SW
73°

Thu, 10:00 AM

Partly Sunny
Winds: 2 mph SW
76°

Thu, 11:00 AM

Partly Sunny
Winds: 2 mph S
78°

Thu, 12:00 PM

Slight Chance Showers And Thunderstorms
Winds: 3 mph E
80°

Thu, 01:00 PM

Slight Chance Showers And Thunderstorms
Winds: 3 mph NE
82°

Thu, 02:00 PM

Chance Showers And Thunderstorms
Winds: 3 mph N
83°

Thu, 03:00 PM

Chance Showers And Thunderstorms
Winds: 5 mph N
84°

Thu, 04:00 PM

Chance Showers And Thunderstorms
Winds: 3 mph N
82°

Thu, 05:00 PM

Chance Showers And Thunderstorms
Winds: 5 mph N
82°

Thu, 06:00 PM

Chance Showers And Thunderstorms
Winds: 5 mph N
82°

Thu, 07:00 PM

Chance Showers And Thunderstorms
Winds: 5 mph NE
80°

Thu, 08:00 PM

Chance Showers And Thunderstorms
Winds: 5 mph NE
78°

Thu, 09:00 PM

Slight Chance Showers And Thunderstorms
Winds: 3 mph NE
77°
Winds: 1 to 7 mph S
A slight chance of showers and thunderstorms between midnight and 1am, then a chance of showers and thunderstorms between 1am and 2am, then a chance of showers and thunderstorms between 2am and 5am, then patchy fog. Mostly cloudy, with a low around 67. South wind 1 to 7 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
Winds: 1 to 5 mph W
Patchy fog before 10am, then a chance of showers and thunderstorms. Partly sunny, with a high near 85. West wind 1 to 5 mph. Chance of precipitation is 40%. New rainfall amounts between a half and three quarters of an inch possible.
Winds: 5 mph NE
A chance of showers and thunderstorms before 2am, then showers and thunderstorms likely. Mostly cloudy, with a low around 69. Northeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between three quarters and one inch possible.
Winds: 3 to 7 mph E
A chance of showers and thunderstorms before 7am, then showers and thunderstorms likely. Mostly cloudy, with a high near 86. East wind 3 to 7 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Winds: 7 mph E
Showers and thunderstorms likely before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 68. East wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Winds: 7 mph SE
A chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms between 8am and 2pm. Partly sunny, with a high near 88. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
Winds: 7 mph S
A slight chance of showers and thunderstorms after 8pm. Partly cloudy, with a low around 72.
Winds: 6 to 12 mph SW
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
Winds: 5 to 10 mph NW
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 40%.
Winds: 5 to 10 mph N
A slight chance of showers and thunderstorms before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 40%.
Winds: 2 to 9 mph N
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 65. Chance of precipitation is 40%.
Winds: 2 to 7 mph N
Mostly sunny, with a high near 84.
Winds: 2 to 7 mph E
Partly cloudy, with a low around 65.
Winds: 2 to 9 mph S
A slight chance of rain showers after 2pm. Mostly sunny, with a high near 86.

Nearshore Marine Forecast

National Weather Service Northern Indiana

For waters within five nautical miles of shore on Lake Michigan OVERNIGHT.Light and variable winds. Patchy fog. Waves 1 foot or less. .THURSDAY.Southeast winds less than 10 knots becoming northeast. Patchy fog in the morning. A chance of showers with a slight chance of thunderstorms in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT.Northeast winds 10 knots or less becoming east. A chance of showers with a slight chance of thunderstorms. Waves 1 foot or less. .FRIDAY.East winds 5 to 10 knots becoming northeast. A chance of showers. Waves 1 foot or less. Winds and waves higher in and near thunderstorms. The water temperature at St. Joseph is 72 degrees and at Michigan City is 65 degrees.

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