Saint Johns, Ohio Weather
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Weather Forecast for Saint Johns, Ohio : Mercer County
Issued: 5:53 am EDT Sep 4, 2025 Latitude: 40.4075472 Longitude: -84.4738413 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Friday Saturday Sunday Monday Tuesday Wednesday
Mostly Cloudy on Today Mostly Clear on Tonight Increasing Clouds on Friday Mostly Sunny on Saturday Mostly Sunny on Sunday Sunny on Monday Sunny on Tuesday Sunny on Wednesday
High: 69°F Low: 49°F High: 76°F High: 69°F High: 67°F High: 69°F High: 75°F High: 80°F
Low: 49°F Low: 46°F Low: 42°F Low: 45°F Low: 50°F  
Mostly Cloudy Mostly Clear Increasing Clouds Mostly Sunny Mostly Sunny Sunny Sunny Sunny
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Current Conditions at
LIMA - (KAOH)
59°
Mostly Cloudy
Mist
as of 8:53 AM EDST
Rel. Humidity: 93%
Dew Point: 57°F
Visibility: 5 Miles
Pressure: 29.78 in.
Flight Rule: IFR
Wind Data
6 MPH
260° West
Cloud Level(s): Broken at 800ft, Broken at 1400ft
Current Conditions at
DAYTON - (KDAY)
63°
Cloudy
as of 8:56 AM EDST
Rel. Humidity: 93%
Dew Point: 61°F
Visibility: 8 Miles
Pressure: 29.79 in.
Flight Rule: MVFR
Wind Data
10 MPH
250° West
Cloud Level(s): Few at 600ft, Broken at 1800ft, Solid Overcast at 8500ft
Current Conditions at
WRIGHT-PATTERSON - (KFFO)
64°
Cloudy
as of 8:55 AM EDST
Rel. Humidity: 88%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 29.77 in.
Flight Rule: IFR
Wind Data
9 MPH
260° West
Cloud Level(s): Broken at 900ft, Solid Overcast at 4800ft
Current Conditions at
MUNCIE - (KMIE)
57°
Clear
as of 8:53 AM EDST
Rel. Humidity: 82%
Dew Point: 52°F
Visibility: 9 Miles
Pressure: 29.81 in.
Flight Rule: VFR
Wind Data
9 MPH
310° Northwest
Cloud Level(s): Clear
Mostly Cloudy on Today Today... Mostly cloudy, then gradually becoming sunny, with a high near 69. West wind around 7 mph.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 49. Calm wind becoming south around 5 mph after midnight.
Increasing Clouds on Friday Friday... Increasing clouds, with a high near 76. Breezy, with a west wind 13 to 20 mph.
30% chance of rain Friday Night Friday Night... A chance of showers. Mostly cloudy, with a low around 49. West wind 5 to 9 mph becoming calm after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 69. Light west wind increasing to 6 to 11 mph in the morning.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 46.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 67.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 42.
Sunny on Monday Monday... Sunny, with a high near 69.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 45.
Sunny on Tuesday Tuesday... Sunny, with a high near 75.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 50.
Sunny on Wednesday Wednesday... Sunny, with a high near 80.
Current Radar Image


Sun Almanac for Saint Johns, Ohio
Sunrise: 07:09 AM
Sunset: 8:05 PM
Civil Sunrise:06:41 AM
Civil Sunset: 8:33 PM
Nautical Sunrise: 06:08 AM
Nautical Sunset: 9:06 PM
Astro Sunrise: 05:34 AM
Astro Sunset: 9:40 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.