Great Miami River from Sidney to Hamilton, OH
09/21/2026 08:00 AM
64°F
TEMPERATURE
Winds 9 mph NE
Rain Showers
Rain showers before 5pm. Cloudy, with a high near 71. Northeast wind around 12 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.

Alerts

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Flood Watch

Severe
Flood Watch issued September 21 at 1:43AM EDT until September 21 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
09/21/2026 01:43 AM 09/21/2026 12:00 PM 09/21/2026 12:00 PM 
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.

* WHERE...Portions of Indiana, including the following counties,
Dearborn, Fayette, Franklin, Ripley, Union and Wayne 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...Until noon EDT today.

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

* ADDITIONAL DETAILS...
- Additional showers and thunderstorms will move across the area
this morning. Locally heavy rain is possible and with the ground
saturated from earlier rainfall, this additional rain could lead
to flash flooding.
Moonrise
06:15 PM
Moonset
02:57 AM
Sunrise
07:23 AM
Moon Phase
Waxing gibbous
Sunset
07:36 PM

Hourly Forecast

Mon, 08:00 AM

Rain Showers
Winds: 9 mph NE
64°

Mon, 09:00 AM

Rain Showers Likely
Winds: 9 mph NE
63°

Mon, 10:00 AM

Chance Rain Showers
Winds: 9 mph NE
64°

Mon, 11:00 AM

Chance Rain Showers
Winds: 9 mph NE
65°

Mon, 12:00 PM

Cloudy
Winds: 9 mph NE
66°

Mon, 01:00 PM

Cloudy
Winds: 9 mph NE
68°

Mon, 02:00 PM

Cloudy
Winds: 9 mph NE
69°

Mon, 03:00 PM

Cloudy
Winds: 10 mph NE
69°

Mon, 04:00 PM

Chance Rain Showers
Winds: 12 mph NE
70°

Mon, 05:00 PM

Cloudy
Winds: 12 mph NE
68°

Mon, 06:00 PM

Mostly Cloudy
Winds: 12 mph NE
68°

Mon, 07:00 PM

Mostly Cloudy
Winds: 13 mph NE
67°

Mon, 08:00 PM

Mostly Cloudy
Winds: 13 mph NE
65°

Mon, 09:00 PM

Cloudy
Winds: 13 mph NE
64°

Mon, 10:00 PM

Mostly Cloudy
Winds: 12 mph NE
63°

Mon, 11:00 PM

Mostly Cloudy
Winds: 10 mph NE
62°

Tue, 12:00 AM

Cloudy
Winds: 10 mph NE
62°

Tue, 01:00 AM

Cloudy
Winds: 9 mph NE
61°

Tue, 02:00 AM

Mostly Cloudy
Winds: 8 mph NE
60°

Tue, 03:00 AM

Mostly Cloudy
Winds: 8 mph NE
61°

Tue, 04:00 AM

Mostly Cloudy
Winds: 8 mph NE
59°

Tue, 05:00 AM

Mostly Cloudy
Winds: 8 mph NE
59°

Tue, 06:00 AM

Mostly Cloudy
Winds: 9 mph NE
59°

Tue, 07:00 AM

Mostly Cloudy
Winds: 9 mph NE
57°

Today

Rain Showers
71°
Winds: 12 mph NE
Rain showers before 5pm. Cloudy, with a high near 71. Northeast wind around 12 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.

Tonight

Mostly Cloudy
57°
Winds: 8 to 13 mph NE
Mostly cloudy, with a low around 57. Northeast wind 8 to 13 mph.

Tuesday

Mostly Cloudy
71°
Winds: 9 to 13 mph NE
Mostly cloudy, with a high near 71. Northeast wind 9 to 13 mph.

Tuesday Night

Mostly Cloudy
59°
Winds: 8 to 13 mph NE
Mostly cloudy, with a low around 59. Northeast wind 8 to 13 mph.

Wednesday

Slight Chance Rain Showers
70°
Winds: 8 to 12 mph NE
A slight chance of rain showers after 8am. Mostly cloudy, with a high near 70. Northeast wind 8 to 12 mph. Chance of precipitation is 20%.

Wednesday Night

Slight Chance Rain Showers then Mostly Cloudy
57°
Winds: 8 to 13 mph NE
A slight chance of rain showers before 8pm. Mostly cloudy, with a low around 57. Chance of precipitation is 20%.

Thursday

Mostly Cloudy
70°
Winds: 10 mph NE
Mostly cloudy, with a high near 70.

Thursday Night

Mostly Cloudy
52°
Winds: 6 to 10 mph NE
Mostly cloudy, with a low around 52.

Friday

Mostly Sunny
71°
Winds: 6 to 10 mph NE
Mostly sunny, with a high near 71.

Friday Night

Mostly Clear
49°
Winds: 5 to 12 mph NE
Mostly clear, with a low around 49.

Saturday

Sunny
71°
Winds: 5 to 8 mph NE
Sunny, with a high near 71.

Saturday Night

Mostly Clear
50°
Winds: 2 to 8 mph NE
Mostly clear, with a low around 50.

Sunday

Mostly Sunny
74°
Winds: 2 to 6 mph NE
Mostly sunny, with a high near 74.

Sunday Night

Partly Cloudy
54°
Winds: 2 to 6 mph NE
Partly cloudy, with a low around 54.

Nearshore Marine Forecast

National Weather Service Northern Indiana

For waters within five nautical miles of shore on Lake Michigan TODAY.Northeast winds 15 to 20 knots diminishing to 10 to 15 knots. A slight chance of showers early. Waves 2 to 4 feet subsiding to 1 to 3 feet. .TONIGHT.Northeast winds 10 to 15 knots. Mostly cloudy. Waves 1 to 3 feet. .TUESDAY.Northeast winds 10 to 15 knots. Mostly sunny. Waves 1 to 2 feet. .TUESDAY NIGHT.Northeast winds 10 to 15 knots. Partly cloudy. Waves 1 to 3 feet. The water temperature at St. Joseph is 52 degrees and at Michigan City is 51 degrees.

Michigan City IN to New Buffalo MI

TODAY
Northeast winds 15 to 20 knots diminishing to 10 to 15 knots A slight chance of showers this morning Waves 2 to 4 feet
TONIGHT
Northeast winds 10 to 15 knots increasing to 15 to 20 knots Gusts up to 25 knots Mostly cloudy Waves 2 to 4 feet
TUESDAY
Northeast winds 10 to 15 knots Mostly sunny Waves 1 to 3 feet
TUESDAY NIGHT
Northeast winds 10 to 15 knots Partly cloudy Waves 1 to 3 feet
Reporting time 04:03 AM EDT Mon Sep 21 2026
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