Great Miami River from Sidney to Hamilton, OH
08/31/2026 06:00 PM
91°F
TEMPERATURE
Winds 8 mph W
Partly Cloudy
Mostly sunny, with a high near 93. Heat index values as high as 101. West wind around 10 mph.

Alerts

You have (1) alert(s). Tap to see details.

Heat Advisory

Moderate
Heat Advisory issued August 31 at 2:03PM EDT until September 2 at 11:00PM EDT by NWS Wilmington OH
NWS Wilmington OH
Category Certainty Severity
Met Likely Moderate
Status Urgency Category
Actual Expected Met
Effective Ends Expires
08/31/2026 02:03 PM 09/02/2026 11:00 PM 08/31/2026 10:15 PM 
* WHAT...Heat index values up to 103 are expected.

* WHERE...Portions of east central and southeast Indiana, northeast
and northern Kentucky, and central, south central, southwest, and
west central Ohio.

* WHEN...From 2 PM Tuesday to 11 PM EDT Wednesday.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
Moonrise
10:41 PM
Moonset
11:47 AM
Sunrise
07:03 AM
Moon Phase
Waning gibbous
Sunset
08:10 PM

Hourly Forecast

Mon, 06:00 PM

Partly Cloudy
Winds: 8 mph W
91°

Mon, 07:00 PM

Partly Cloudy
Winds: 6 mph SW
89°

Mon, 08:00 PM

Partly Cloudy
Winds: 5 mph SW
85°

Mon, 09:00 PM

Partly Cloudy
Winds: 3 mph SW
82°

Mon, 10:00 PM

Partly Cloudy
Winds: 3 mph SW
80°

Mon, 11:00 PM

Mostly Clear
Winds: 3 mph SW
79°

Tue, 12:00 AM

Mostly Clear
Winds: 5 mph SW
77°

Tue, 01:00 AM

Mostly Clear
Winds: 5 mph SW
77°

Tue, 02:00 AM

Mostly Clear
Winds: 5 mph SW
76°

Tue, 03:00 AM

Mostly Clear
Winds: 5 mph SW
76°

Tue, 04:00 AM

Mostly Clear
Winds: 5 mph SW
75°

Tue, 05:00 AM

Partly Cloudy
Winds: 6 mph SW
75°

Tue, 06:00 AM

Mostly Sunny
Winds: 6 mph SW
74°

Tue, 07:00 AM

Mostly Sunny
Winds: 6 mph SW
74°

Tue, 08:00 AM

Mostly Sunny
Winds: 7 mph SW
75°

Tue, 09:00 AM

Mostly Sunny
Winds: 7 mph SW
77°

Tue, 10:00 AM

Mostly Sunny
Winds: 8 mph SW
82°

Tue, 11:00 AM

Mostly Sunny
Winds: 9 mph SW
85°

Tue, 12:00 PM

Mostly Sunny
Winds: 9 mph SW
88°

Tue, 01:00 PM

Sunny
Winds: 10 mph W
91°

Tue, 02:00 PM

Sunny
Winds: 10 mph W
93°

Tue, 03:00 PM

Mostly Sunny
Winds: 10 mph W
93°

Tue, 04:00 PM

Mostly Sunny
Winds: 9 mph W
95°

Tue, 05:00 PM

Mostly Sunny
Winds: 9 mph W
93°

This Afternoon

Mostly Sunny
93°
Winds: 10 mph W
Mostly sunny, with a high near 93. Heat index values as high as 101. West wind around 10 mph.

Tonight

Mostly Clear
74°
Winds: 3 to 8 mph SW
Mostly clear, with a low around 74. Southwest wind 3 to 8 mph.

Tuesday

Sunny
95°
Winds: 6 to 10 mph SW
Sunny, with a high near 95. Heat index values as high as 104. Southwest wind 6 to 10 mph.

Tuesday Night

Mostly Clear
74°
Winds: 3 to 8 mph SW
Mostly clear, with a low around 74. Heat index values as high as 102. Southwest wind 3 to 8 mph.

Wednesday

Sunny
97°
Winds: 3 to 10 mph SW
Sunny, with a high near 97. Southwest wind 3 to 10 mph.

Wednesday Night

Mostly Clear
76°
Winds: 3 to 8 mph SW
Mostly clear, with a low around 76.

Thursday

Sunny
96°
Winds: 5 to 10 mph SW
Sunny, with a high near 96.

Thursday Night

Mostly Clear then Slight Chance Showers And Thunderstorms
73°
Winds: 2 to 8 mph SW
A slight chance of showers and thunderstorms after 2am. Mostly clear, with a low around 73.

Friday

Chance Showers And Thunderstorms
91°
Winds: 2 to 7 mph NW
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 30%.

Friday Night

Slight Chance Showers And Thunderstorms
69°
Winds: 3 to 7 mph N
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 69.

Saturday

Chance Showers And Thunderstorms
87°
Winds: 3 to 9 mph NE
A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 40%.

Saturday Night

Chance Showers And Thunderstorms then Partly Cloudy
64°
Winds: 6 to 10 mph NE
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 64. Chance of precipitation is 40%.

Sunday

Mostly Sunny
84°
Winds: 6 to 10 mph NE
Mostly sunny, with a high near 84.

Sunday Night

Partly Cloudy
63°
Winds: 5 to 10 mph NE
Partly cloudy, with a low around 63.

Nearshore Marine Forecast

National Weather Service Northern Indiana

For waters within five nautical miles of shore on Lake Michigan TONIGHT.South winds 5 to 10 knots becoming southwest. A chance of showers and thunderstorms early, then a slight chance of showers and thunderstorms late this evening. Waves 1 foot or less. .TUESDAY.Southwest winds 10 knots or less. A slight chance of showers and thunderstorms. Waves 1 foot or less. .TUESDAY NIGHT.Southwest winds 5 to 10 knots. Mostly cloudy in the evening, then clearing. Waves 1 foot or less. .WEDNESDAY.Southwest winds 5 to 10 knots. Sunny. Waves 1 foot or less. Winds and waves higher in and near thunderstorms. The water temperature at St. Joseph is 73 degrees and at Michigan City is 63 degrees.

New Buffalo MI to St Joseph MI

TONIGHT
Southwest winds 5 to 10 knots A chance of showers and thunderstorms early, then a slight chance of showers and thunderstorms late this evening Waves 2 feet or less
TUESDAY
Southwest winds 10 knots or less Mostly sunny Waves 1 foot or less
TUESDAY NIGHT
Southwest winds 10 knots or less Mostly cloudy in the evening, then clearing Waves 1 foot or less
WEDNESDAY
Southwest winds 5 to 10 knots Sunny Waves 1 foot or less
Reporting time 04:44 PM EDT Mon Aug 31 2026

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