Great Miami River from Sidney to Hamilton, OH
09/17/2026 10:00 PM
76°F
TEMPERATURE
Winds 5 mph N
Mostly Cloudy
A slight chance of showers and thunderstorms between midnight and 2am, then showers and thunderstorms likely. Mostly cloudy, with a low around 69. North wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Alerts

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Flood Watch issued September 17 at 8:29PM EDT until September 18 at 12:00PM EDT by NWS Wilmington OH
NWS Wilmington OH
Category Certainty Severity
Met Possible Severe
Status Urgency Category
Actual Future Met
Effective Ends Expires
09/17/2026 08:29 PM 09/18/2026 12:00 PM 09/18/2026 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, Union and Wayne,
northern Kentucky, including the following counties, Boone,
Campbell and Kenton, and Ohio, including the following counties,
Adams, Brown, Butler, Clark, Clermont, Clinton, Darke, Fairfield,
Fayette, Franklin, Greene, Hamilton, Highland, Hocking, Madison,
Miami, Montgomery, Pickaway, Pike, Preble, Ross, Scioto and Warren.

* WHEN...From midnight EDT tonight through Friday morning.

* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.

* ADDITIONAL DETAILS...
- Several rounds of thunderstorms will produce heavy rain of 1 to 3
inches with locally higher amounts, which  may lead to flooding.
                                            
Moonrise
03:17 PM
Moonset
12:08 AM
Sunrise
07:19 AM
Moon Phase
Waxing crescent
Sunset
07:42 PM

Hourly Forecast

Thu, 10:00 PM

Mostly Cloudy
Winds: 5 mph N
76°

Thu, 11:00 PM

Mostly Cloudy
Winds: 3 mph N
75°

Fri, 12:00 AM

Slight Chance Showers And Thunderstorms
Winds: 3 mph N
73°

Fri, 01:00 AM

Slight Chance Showers And Thunderstorms
Winds: 3 mph N
72°

Fri, 02:00 AM

Showers And Thunderstorms Likely
Winds: 3 mph N
71°

Fri, 03:00 AM

Showers And Thunderstorms Likely
Winds: 3 mph NE
71°

Fri, 04:00 AM

Showers And Thunderstorms Likely
Winds: 5 mph NE
71°

Fri, 05:00 AM

Showers And Thunderstorms Likely
Winds: 5 mph NE
70°

Fri, 06:00 AM

Chance Showers And Thunderstorms
Winds: 6 mph NE
70°

Fri, 07:00 AM

Slight Chance Showers And Thunderstorms
Winds: 6 mph NE
69°

Fri, 08:00 AM

Mostly Cloudy
Winds: 6 mph NE
69°

Fri, 09:00 AM

Mostly Cloudy
Winds: 7 mph NE
70°

Fri, 10:00 AM

Mostly Cloudy
Winds: 7 mph NE
72°

Fri, 11:00 AM

Mostly Cloudy
Winds: 7 mph NE
74°

Fri, 12:00 PM

Mostly Cloudy
Winds: 7 mph NE
75°

Fri, 01:00 PM

Mostly Cloudy
Winds: 8 mph NE
78°

Fri, 02:00 PM

Mostly Cloudy
Winds: 8 mph NE
79°

Fri, 03:00 PM

Mostly Cloudy
Winds: 8 mph NE
80°

Fri, 04:00 PM

Mostly Cloudy
Winds: 9 mph NE
81°

Fri, 05:00 PM

Mostly Cloudy
Winds: 9 mph NE
79°

Fri, 06:00 PM

Mostly Cloudy
Winds: 9 mph NE
79°

Fri, 07:00 PM

Mostly Cloudy
Winds: 8 mph NE
79°

Fri, 08:00 PM

Mostly Cloudy
Winds: 8 mph NE
74°

Fri, 09:00 PM

Mostly Cloudy
Winds: 9 mph NE
72°
Winds: 5 mph N
A slight chance of showers and thunderstorms between midnight and 2am, then showers and thunderstorms likely. Mostly cloudy, with a low around 69. North wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Winds: 6 to 9 mph NE
A chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms between 7am and 8am. Mostly cloudy, with a high near 81. Northeast wind 6 to 9 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Winds: 5 to 9 mph E
Mostly cloudy, with a low around 63. East wind 5 to 9 mph.
Winds: 6 mph SE
A chance of rain showers between 8am and 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 84. Southeast wind around 6 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
Winds: 6 mph S
Showers and thunderstorms likely. Mostly cloudy, with a low around 69. South wind around 6 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Winds: 5 to 9 mph W
Showers and thunderstorms likely. Mostly cloudy, with a high near 84. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Winds: 9 to 14 mph NE
Showers and thunderstorms likely. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.
Winds: 12 mph NE
A chance of rain showers. Mostly cloudy, with a high near 77. Chance of precipitation is 40%.
Winds: 9 to 14 mph NE
A chance of rain showers before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 50%.
Winds: 9 to 13 mph NE
A chance of showers and thunderstorms. Partly sunny, with a high near 74. Chance of precipitation is 40%.
Winds: 8 to 14 mph NE
A chance of rain showers. Mostly cloudy, with a low around 60. Chance of precipitation is 40%.
Winds: 10 mph NE
A slight chance of rain showers before 8am. Partly sunny, with a high near 74.
Winds: 6 to 10 mph NE
Mostly cloudy, with a low around 58.
Winds: 6 to 9 mph NE
Partly sunny, with a high near 75.

Nearshore Marine Forecast

National Weather Service Northern Indiana

For waters within five nautical miles of shore on Lake Michigan DENSE FOG ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING. TONIGHT.North winds 5 to 10 knots becoming northeast. Mostly cloudy. Waves 2 feet or less. .FRIDAY.Northeast winds 5 to 10 knots. Partly sunny. Waves 2 feet or less. .FRIDAY NIGHT.East winds 5 to 15 knots becoming southeast. Showers likely with a slight chance of thunderstorms overnight. Waves 1 foot or less. .SATURDAY.Southeast winds 5 to 15 knots. Showers with a chance of thunderstorms. Waves 1 foot or less. Winds and waves higher in and near thunderstorms. The water temperature at St. Joseph is 54 degrees and at Michigan City is 52 degrees.

DENSE FOG ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING
Reporting time 04:07 PM EDT Thu Sep 17 2026
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