Great Miami River from Sidney to Hamilton, OH
07/20/2026 05:00 PM
88°F
TEMPERATURE
Winds 5 mph W
Mostly Sunny
Mostly sunny, with a high near 88. West wind around 5 mph.

Alerts

You have (5) alert(s). Tap to see details.

Air Quality Alert issued July 20 at 1:20AM EDT by NWS Wilmington OH
NWS Wilmington OH
Category Certainty Severity
Met Unknown Unknown
Status Urgency Category
Actual Unknown Met
Effective Ends Expires
07/20/2026 01:20 AM 07/20/2026 05:04 PM 07/20/2026 09:15 PM
The Miami Valley Regional Planning Commission and the Regional Air
Pollution Control Agency have issued an Air Quality Alert for Clark,
Darke, Greene, Miami, Montgomery, Preble, and Shelby counties in the
Miami Valley Region, through midnight EDT tonight.

Fine particulate levels are expected to be in the Unhealthy for
Sensitive Groups range. Active children and adults, and people with
respiratory disease, such as asthma should limit prolonged outdoor
exposure.

For additional actions and information, visit miamivalleyair.org or
call 937-223-6323
                                            
Air Quality Alert issued July 19 at 2:09PM EDT by NWS Wilmington OH
NWS Wilmington OH
Category Certainty Severity
Met Unknown Unknown
Status Urgency Category
Actual Unknown Met
Effective Ends Expires
07/19/2026 02:09 PM 07/20/2026 05:04 PM 07/20/2026 09:15 PM
The Miami Valley Regional Planning Commission and the Regional Air
Pollution Control Agency have issued an Air Quality Alert for Clark,
Darke, Greene, Miami, Montgomery, Preble, and Shelby counties in the
Miami Valley Region, from midnight tonight to midnight EDT Monday
night.

Fine particulate levels are expected to be in the Unhealthy for
Sensitive Groups range. Active children and adults, and people with
respiratory disease, such as asthma should limit prolonged outdoor
exposure.

For additional actions and information, visit miamivalleyair.org or
call 937-223-6323
                                            
Air Quality Alert issued July 19 at 1:52PM EDT by NWS Wilmington OH
NWS Wilmington OH
Category Certainty Severity
Met Unknown Unknown
Status Urgency Category
Actual Unknown Met
Effective Ends Expires
07/19/2026 01:52 PM 07/20/2026 05:04 PM 07/20/2026 09:15 PM
The Miami Valley Regional Planning Commission and the Regional Air
Pollution Control Agency have issued an Air Quality Alert for Clark,
Darke, Greene, Miami, Montgomery, Preble, and Shelby counties in the
Miami Valley Region, from midnight tonight to midnight EDT Monday
night.

Fine particulate levels are expected to be in the Unhealthy for
Sensitive Groups range. Active children and adults, and people with
respiratory disease, such as asthma should limit prolonged outdoor
exposure.

For additional actions and information, visit miamivalleyair.org or
call 937-223-6323
                                            
Air Quality Alert issued July 19 at 12:05AM EDT by NWS Wilmington OH
NWS Wilmington OH
Category Certainty Severity
Met Unknown Unknown
Status Urgency Category
Actual Unknown Met
Effective Ends Expires
07/19/2026 12:05 AM 07/20/2026 05:04 PM 07/21/2026 12:00 AM
The Miami Valley Regional Planning Commission and the Regional Air
Pollution Control Agency have issued an Air Quality Alert for Clark,
Darke, Greene, Miami, Montgomery, Preble, and Shelby counties in the
Miami Valley Region, through midnight EDT Monday night.

Fine particulate levels are expected to be in the Unhealthy for
Sensitive Groups range. Active children and adults, and people with
respiratory disease, such as asthma should limit prolonged outdoor
exposure.

For additional actions and information, visit miamivalleyair.org or
call 937-223-6323
                                            
Air Quality Alert issued July 18 at 1:03PM EDT by NWS Wilmington OH
NWS Wilmington OH
Category Certainty Severity
Met Unknown Unknown
Status Urgency Category
Actual Unknown Met
Effective Ends Expires
07/18/2026 01:03 PM 07/20/2026 05:04 PM 07/21/2026 12:15 AM
The Miami Valley Regional Planning Commission and the Regional Air
Pollution Control Agency have issued an Air Quality Alert for Clark,
Darke, Greene, Miami, Montgomery, Preble, and Shelby counties in the
Miami Valley Region, from midnight tonight to midnight EDT Monday
night.

Fine particulate levels are expected to be in the Unhealthy for
Sensitive Groups range. Active children and adults, and people with
respiratory disease, such as asthma should limit prolonged outdoor
exposure.

For additional actions and information, visit miamivalleyair.org or
call 937-223-6323
                                            
Moonrise
02:30 PM
Moonset
12:59 AM
Sunrise
06:25 AM
Moon Phase
Waxing crescent
Sunset
09:01 PM

Hourly Forecast

Mon, 05:00 PM

Mostly Sunny
Winds: 5 mph W
88°

Mon, 06:00 PM

Partly Cloudy
Winds: 3 mph W
86°

Mon, 07:00 PM

Partly Cloudy
Winds: 3 mph W
86°

Mon, 08:00 PM

Mostly Cloudy
Winds: 3 mph SW
85°

Mon, 09:00 PM

Partly Cloudy
Winds: 2 mph SW
81°

Mon, 10:00 PM

Mostly Clear
Winds: 2 mph S
78°

Mon, 11:00 PM

Partly Cloudy
Winds: 3 mph S
76°

Tue, 12:00 AM

Partly Cloudy
Winds: 3 mph S
75°

Tue, 01:00 AM

Partly Cloudy
Winds: 3 mph SW
74°

Tue, 02:00 AM

Mostly Cloudy
Winds: 5 mph SW
73°

Tue, 03:00 AM

Partly Cloudy
Winds: 5 mph SW
73°

Tue, 04:00 AM

Mostly Cloudy
Winds: 6 mph SW
73°

Tue, 05:00 AM

Slight Chance Showers And Thunderstorms
Winds: 7 mph SW
73°

Tue, 06:00 AM

Chance Showers And Thunderstorms
Winds: 9 mph SW
73°

Tue, 07:00 AM

Chance Showers And Thunderstorms
Winds: 10 mph SW
72°

Tue, 08:00 AM

Showers And Thunderstorms Likely
Winds: 12 mph SW
73°

Tue, 09:00 AM

Showers And Thunderstorms Likely
Winds: 13 mph SW
75°

Tue, 10:00 AM

Showers And Thunderstorms Likely
Winds: 13 mph SW
77°

Tue, 11:00 AM

Showers And Thunderstorms Likely
Winds: 14 mph SW
78°

Tue, 12:00 PM

Showers And Thunderstorms Likely
Winds: 15 mph SW
79°

Tue, 01:00 PM

Showers And Thunderstorms Likely
Winds: 15 mph SW
81°

Tue, 02:00 PM

Showers And Thunderstorms Likely
Winds: 15 mph W
83°

Tue, 03:00 PM

Showers And Thunderstorms Likely
Winds: 15 mph W
84°

Tue, 04:00 PM

Chance Showers And Thunderstorms
Winds: 15 mph W
84°
Winds: 5 mph W
Mostly sunny, with a high near 88. West wind around 5 mph.
Winds: 2 to 7 mph SW
A slight chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 71. Southwest wind 2 to 7 mph. Chance of precipitation is 20%.
Winds: 9 to 15 mph SW
Showers and thunderstorms likely before 2pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 87. Southwest wind 9 to 15 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Winds: 5 to 13 mph NW
A chance of showers and thunderstorms before 10pm. Mostly clear, with a low around 65. Northwest wind 5 to 13 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
Winds: 8 to 12 mph N
Sunny, with a high near 76. North wind 8 to 12 mph.
Winds: 2 to 10 mph N
Mostly clear, with a low around 55.
Winds: 3 to 7 mph NE
Sunny, with a high near 79.
Winds: 3 to 7 mph NE
Mostly clear, with a low around 57.
Winds: 3 to 7 mph NE
Mostly sunny, with a high near 82.
Winds: 2 to 6 mph NE
Partly cloudy, with a low around 63.
Winds: 2 to 6 mph SE
Mostly sunny, with a high near 87.
Winds: 1 to 5 mph SW
Partly cloudy, with a low around 66.
Winds: 1 to 9 mph W
Sunny, with a high near 90.
Winds: 5 to 8 mph W
A slight chance of showers and thunderstorms after 8pm. Partly cloudy, with a low around 70.

Nearshore Marine Forecast

National Weather Service Northern Indiana

For waters within five nautical miles of shore on Lake Michigan SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH LATE WEDNESDAY NIGHT. TONIGHT.South winds 10 to 15 knots becoming southwest 15 to 20 knots. Gusts up to 25 knots. Patchy smoke early. A chance of showers and thunderstorms late this evening. Showers likely with a chance of thunderstorms after midnight, then a chance of showers and thunderstorms late. Waves 1 to 3 feet building to 3 to 5 feet. .TUESDAY.West winds 15 to 20 knots becoming northwest 10 to 15 knots. Gusts up to 25 knots. A slight chance of showers and thunderstorms in the morning. Waves 3 to 5 feet. .TUESDAY NIGHT.Northwest winds 15 to 25 knots becoming north. Gusts up to 30 knots. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers overnight. Waves 3 to 6 feet building to 5 to 7 feet. .WEDNESDAY.North winds 15 to 20 knots. Gusts up to 30 knots. Mostly cloudy in the morning, then becoming mostly sunny. Waves 5 to 7 feet. Winds and waves higher in and near thunderstorms. The water temperature at St. Joseph is 51 degrees and at Michigan City is 57 degrees.

TONIGHT
South winds 10 to 15 knots becoming southwest 15 to 20 knots A few gusts up to 25 knots Patchy smoke early A chance of showers and thunderstorms late this evening Showers likely with a chance of thunderstorms after midnight Waves 1 to 3 feet building to 2 to 4 feet
TUESDAY
West winds 15 to 20 knots becoming northwest 10 to 15 knots A few gusts up to 25 knots A slight chance of showers and thunderstorms in the morning Waves 2 to 4 feet
TUESDAY NIGHT
Northwest winds 15 to 25 knots becoming north Gusts up to 30 knots A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers overnight Waves 3 to 5 feet building to 5 to 7 feet
WEDNESDAY
North winds 15 to 20 knots Gusts up to 25 knots Mostly cloudy in the morning, then becoming mostly sunny Waves 5 to 7 feet
Reporting time 03:43 PM EDT Mon Jul 20 2026
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