National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Dayton, Cox Dayton International Airport (KDAY)

Lat: 39.91°NLon: 84.22°WElev: 1007ft.

Fair

56°F

13°C

Humidity 67%
Wind Speed N 6 mph
Barometer 30.04 in (1017.3 mb)
Dewpoint 45°F (7°C)
Visibility 9.00 mi
Last update 10 Nov 7:56 pm EST
Extended Forecast for

Union OH

  • Tonight

    Tonight: Increasing clouds, with a low around 40. Calm wind.

    Low: 40 °F

    Increasing
    Clouds

  • Veterans Day

    Veterans Day: Partly sunny, with a high near 63. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 63 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Showers likely, mainly before 9pm. Mostly cloudy, with a low around 42. Southeast wind 6 to 13 mph becoming north in the evening. Winds could gust as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 42 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of rain, mainly after 1pm. Mostly cloudy, with a high near 49. Northwest wind around 15 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A slight chance of rain before 1am. Mostly cloudy, with a low around 31. North wind 9 to 14 mph. Chance of precipitation is 20%.

    Low: 31 °F

    Slight Chance
    Rain

  • Friday

    Friday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 40. Calm wind.
Veterans Day
Partly sunny, with a high near 63. Calm wind becoming south 5 to 8 mph in the afternoon.
Wednesday Night
Showers likely, mainly before 9pm. Mostly cloudy, with a low around 42. Southeast wind 6 to 13 mph becoming north in the evening. Winds could gust as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A chance of rain, mainly after 1pm. Mostly cloudy, with a high near 49. Northwest wind around 15 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A slight chance of rain before 1am. Mostly cloudy, with a low around 31. North wind 9 to 14 mph. Chance of precipitation is 20%.
Friday
Partly sunny, with a high near 44.
Friday Night
Mostly cloudy, with a low around 29.
Saturday
Mostly sunny, with a high near 46.
Saturday Night
Mostly clear, with a low around 28.
Sunday
Sunny, with a high near 48.
Sunday Night
Partly cloudy, with a low around 30.
Monday
Mostly sunny, with a high near 50.
Monday Night
Partly cloudy, with a low around 31.
Tuesday
Sunny, with a high near 52.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Union OH
 39.93°N 84.3°W (Elev. 899 ft)
Last Update:
4:00 pm EST Nov 10, 2026
Forecast Valid:
8pm EST Nov 10, 2026-6pm EST Nov 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation