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

43°F

6°C

Humidity 82%
Wind Speed W 7 mph
Barometer 29.77 in (1008.1 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 8 Nov 4:56 am EST
Extended Forecast for

Union OH

  • Today

    Today: Increasing clouds, with a high near 59. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 59 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Rain, mainly after 2am. Low around 38. Light and variable wind becoming southeast 5 to 7 mph after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Chance Rain
    then Rain

  • Sunday

    Sunday: Rain before 4pm, then rain and snow likely. High near 46. Northwest wind 10 to 16 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 46 °F

    Rain then
    Rain/Snow

  • Sunday Night

    Sunday Night: Snow likely, possibly mixed with rain, becoming all snow after 10pm. Mostly cloudy, with a low around 25. West wind 11 to 14 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Rain/Snow
    Likely then
    Snow Likely

  • Monday

    Monday: A chance of snow, mainly before 1pm. Mostly cloudy, with a high near 35. Northwest wind 11 to 15 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.

    High: 35 °F

    Chance Snow

  • Monday Night

    Monday Night: A slight chance of snow before 1am. Partly cloudy, with a low around 23. Chance of precipitation is 20%.

    Low: 23 °F

    Slight Chance
    Snow

  • Veterans Day

    Veterans Day: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 59. Calm wind becoming west 5 to 7 mph in the afternoon.
Tonight
Rain, mainly after 2am. Low around 38. Light and variable wind becoming southeast 5 to 7 mph after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Rain before 4pm, then rain and snow likely. High near 46. Northwest wind 10 to 16 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Sunday Night
Snow likely, possibly mixed with rain, becoming all snow after 10pm. Mostly cloudy, with a low around 25. West wind 11 to 14 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Monday
A chance of snow, mainly before 1pm. Mostly cloudy, with a high near 35. Northwest wind 11 to 15 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.
Monday Night
A slight chance of snow before 1am. Partly cloudy, with a low around 23. Chance of precipitation is 20%.
Veterans Day
Partly sunny, with a high near 41.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Sunny, with a high near 54.
Wednesday Night
Mostly clear, with a low around 33.
Thursday
Sunny, with a high near 51.
Thursday Night
Partly cloudy, with a low around 32.
Friday
Mostly sunny, with a high near 55.
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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:
5:45 am EST Nov 8, 2025
Forecast Valid:
5am EST Nov 8, 2025-6pm EST Nov 14, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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