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.

Overcast

37°F

3°C

Humidity 93%
Wind Speed NE 18 mph
Barometer 30.10 in (1019.0 mb)
Dewpoint 35°F (2°C)
Visibility 8.00 mi
Wind Chill27°F (-3°C)
Last update 27 Mar 6:56 am EDT
Extended Forecast for

Union OH

  • Today

    Today: A slight chance of showers before 10am. Partly sunny, with a high near 46. Northeast wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

    High: 46 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 28. Northwest wind 8 to 11 mph, with gusts as high as 21 mph.

    Low: 28 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 47. West wind 5 to 7 mph.

    High: 47 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 34. South wind 5 to 8 mph.

    Low: 34 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Partly sunny, with a high near 58. Southwest wind 9 to 15 mph, with gusts as high as 25 mph.

    High: 58 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of showers after 2pm. Mostly cloudy, with a high near 69. Chance of precipitation is 30%.

    High: 69 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.

    Low: 59 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers before 2pm. Mostly cloudy, with a high near 77. Breezy. Chance of precipitation is 40%.

    High: 77 °F

    Chance
    Showers and
    Breezy

Detailed Forecast

Today
A slight chance of showers before 10am. Partly sunny, with a high near 46. Northeast wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 28. Northwest wind 8 to 11 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 47. West wind 5 to 7 mph.
Saturday Night
Increasing clouds, with a low around 34. South wind 5 to 8 mph.
Sunday
Partly sunny, with a high near 58. Southwest wind 9 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 50.
Monday
A chance of showers after 2pm. Mostly cloudy, with a high near 69. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.
Tuesday
A chance of showers before 2pm. Mostly cloudy, with a high near 77. Breezy. Chance of precipitation is 40%.
Tuesday Night
A chance of showers after 2am. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 73. Breezy. Chance of precipitation is 50%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Thursday
Showers likely. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Union OH
 39.89°N 84.33°W (Elev. 965 ft)
Last Update:
4:00 am EDT Mar 27, 2026
Forecast Valid:
7am EDT Mar 27, 2026-6pm EDT Apr 2, 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