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.

Mostly Cloudy

55°F

13°C

Humidity 72%
Wind Speed SE 8 mph
Barometer 29.92 in (1013.3 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 11 Nov 9:56 am EST
Extended Forecast for

Union OH

  • Veterans Day

    Veterans Day: Partly sunny, with a high near 64. Southwest wind 5 to 8 mph.

    High: 64 °F

    Partly Sunny

  • Tonight

    Tonight: Rain before 4am, then a chance of rain after 5am. Low around 41. South wind 6 to 15 mph becoming north after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 41 °F

    Rain then
    Chance Rain

  • Thursday

    Thursday: A slight chance of rain between 11am and 2pm. Partly sunny, with a high near 50. Northwest wind around 14 mph. Chance of precipitation is 20%.

    High: 50 °F

    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: A chance of rain before 1am. Mostly cloudy, with a low around 32. North wind 8 to 14 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 32 °F

    Chance Rain

  • Friday

    Friday: Partly sunny, with a high near 44. Northwest wind 8 to 14 mph.

    High: 44 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 46.

    High: 46 °F

    Sunny

  • Saturday Night

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

    Low: 28 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

Detailed Forecast

Veterans Day
Partly sunny, with a high near 64. Southwest wind 5 to 8 mph.
Tonight
Rain before 4am, then a chance of rain after 5am. Low around 41. South wind 6 to 15 mph becoming north after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
A slight chance of rain between 11am and 2pm. Partly sunny, with a high near 50. Northwest wind around 14 mph. Chance of precipitation is 20%.
Thursday Night
A chance of rain before 1am. Mostly cloudy, with a low around 32. North wind 8 to 14 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Partly sunny, with a high near 44. Northwest wind 8 to 14 mph.
Friday Night
Partly cloudy, with a low around 28.
Saturday
Sunny, with a high near 46.
Saturday Night
Mostly clear, with a low around 28.
Sunday
Mostly sunny, with a high near 48.
Sunday Night
Partly cloudy, with a low around 27.
Monday
Mostly sunny, with a high near 49.
Monday Night
Partly cloudy, with a low around 28.
Tuesday
Sunny, with a high near 51.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Union OH
 39.91°N 84.3°W (Elev. 899 ft)
Last Update:
4:00 am EST Nov 11, 2026
Forecast Valid:
10am EST Nov 11, 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