Great Miami River from Sidney to Hamilton, OH
05/18/2026 03:00 PM
87°F
TEMPERATURE
Winds 16 mph SW
Mostly Sunny
A slight chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 89. Southwest wind around 17 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Moonrise
08:30 AM
Moonset
12:41 AM
Sunrise
06:18 AM
Moon Phase
Waxing crescent
Sunset
08:47 PM

Hourly Forecast

Mon, 03:00 PM

Mostly Sunny
Winds: 16 mph SW
87°

Mon, 04:00 PM

Mostly Sunny
Winds: 17 mph S
88°

Mon, 05:00 PM

Slight Chance Showers And Thunderstorms
Winds: 16 mph SW
87°

Mon, 06:00 PM

Chance Showers And Thunderstorms
Winds: 15 mph SW
86°

Mon, 07:00 PM

Chance Showers And Thunderstorms
Winds: 13 mph SW
85°

Mon, 08:00 PM

Chance Showers And Thunderstorms
Winds: 10 mph SW
82°

Mon, 09:00 PM

Chance Showers And Thunderstorms
Winds: 8 mph W
80°

Mon, 10:00 PM

Chance Showers And Thunderstorms
Winds: 7 mph SW
78°

Mon, 11:00 PM

Mostly Cloudy
Winds: 7 mph W
76°

Tue, 12:00 AM

Mostly Cloudy
Winds: 7 mph SW
75°

Tue, 01:00 AM

Mostly Cloudy
Winds: 7 mph S
75°

Tue, 02:00 AM

Mostly Cloudy
Winds: 7 mph S
74°

Tue, 03:00 AM

Mostly Cloudy
Winds: 8 mph S
73°

Tue, 04:00 AM

Mostly Cloudy
Winds: 9 mph S
73°

Tue, 05:00 AM

Mostly Cloudy
Winds: 9 mph S
73°

Tue, 06:00 AM

Mostly Sunny
Winds: 10 mph S
71°

Tue, 07:00 AM

Mostly Sunny
Winds: 12 mph S
73°

Tue, 08:00 AM

Sunny
Winds: 12 mph S
73°

Tue, 09:00 AM

Sunny
Winds: 14 mph SW
76°

Tue, 10:00 AM

Mostly Sunny
Winds: 15 mph SW
80°

Tue, 11:00 AM

Mostly Sunny
Winds: 16 mph SW
82°

Tue, 12:00 PM

Mostly Sunny
Winds: 17 mph SW
84°

Tue, 01:00 PM

Mostly Sunny
Winds: 17 mph SW
86°

Tue, 02:00 PM

Chance Showers And Thunderstorms
Winds: 20 mph SW
87°
Winds: 17 mph SW
A slight chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 89. Southwest wind around 17 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Winds: 7 to 15 mph SW
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 10pm, then a chance of showers and thunderstorms between 10pm and 11pm. Mostly cloudy, with a low around 71. Southwest wind 7 to 15 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Winds: 10 to 20 mph SW
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Southwest wind 10 to 20 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Winds: 7 to 18 mph SW
A chance of showers and thunderstorms before 8pm, then showers and thunderstorms. Mostly cloudy, with a low around 64. Southwest wind 7 to 18 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
Winds: 8 to 12 mph N
Rain showers before 8am, then showers and thunderstorms likely between 8am and 2pm. Mostly cloudy, with a high near 73. North wind 8 to 12 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
Winds: 10 mph NE
Mostly cloudy, with a low around 50.
Winds: 12 mph NE
Mostly sunny, with a high near 70.
Winds: 10 mph NE
A slight chance of rain showers after 2am. Mostly cloudy, with a low around 54.
Winds: 8 to 12 mph E
Rain showers likely before 2pm, then showers and thunderstorms. Mostly cloudy, with a high near 75. Chance of precipitation is 90%.
Winds: 12 mph S
Showers and thunderstorms. Cloudy, with a low around 63. Chance of precipitation is 90%.
Winds: 12 mph SW
Showers and thunderstorms likely. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.
Winds: 5 to 9 mph SW
Showers and thunderstorms likely before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 70%.
Winds: 5 to 8 mph SW
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 40%.
Winds: 3 to 8 mph S
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65.

Nearshore Marine Forecast

National Weather Service Northern Indiana

For waters within five nautical miles of shore on Lake Michigan REST OF TODAY.South winds 10 to 15 knots becoming southwest 15 to 20 knots. Gusts up to 25 knots. Showers likely with a chance of thunderstorms early this afternoon. A chance of showers and thunderstorms late. Waves 1 to 3 feet. .TONIGHT.South winds 10 to 15 knots increasing to 15 to 20 knots. Gusts up to 25 knots. A slight chance of showers and thunderstorms in the evening. Waves 1 to 3 feet. .TUESDAY.South winds 15 to 20 knots becoming southwest. Gusts up to 25 knots. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Waves 1 to 3 feet building to 2 to 4 feet. .TUESDAY NIGHT.West winds 10 to 15 knots becoming north. Showers likely with a chance of thunderstorms in the evening, then a chance of showers overnight. Waves 2 to 3 feet. Winds and waves higher in and near thunderstorms. The water temperature at St. Joseph is 55 degrees and at Michigan City is 53 degrees.

REST OF TODAY
South winds 10 to 15 knots Gusts up to 25 knots Showers likely with a chance of thunderstorms early this afternoon A chance of showers and thunderstorms late Waves 1 to 3 feet
TONIGHT
South winds 10 to 15 knots increasing to 15 to 20 knots Gusts up to 25 knots A slight chance of showers and thunderstorms in the evening Waves 1 to 3 feet
TUESDAY
South winds 15 to 20 knots becoming southwest Gusts up to 30 knots A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon Waves 2 to 4 feet
TUESDAY NIGHT
West winds 10 to 15 knots becoming north Showers likely with a chance of thunderstorms in the evening, then a chance of showers overnight Waves 2 to 4 feet
Reporting time 10:40 AM EDT Mon May 18 2026
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