Current conditions at

Dayton, Cox Dayton International Airport (KDAY)

Lat: 39.91°NLon: 84.22°WElev: 1007ft.

Partly Cloudy

83°F

28°C

Humidity 37%
Wind Speed S 9 mph
Barometer 30.20 in (1021.8 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 4 Oct 1:56 pm EDT
Extended Forecast for

Union OH

  • This Afternoon

    This Afternoon: Sunny, with a high near 87. South wind around 6 mph.

    High: 87 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 56. South wind around 6 mph becoming calm  in the evening.

    Low: 56 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 86. Calm wind becoming south 5 to 9 mph in the morning.

    High: 86 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 57. South wind 5 to 7 mph.

    Low: 57 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers after 2pm.  Mostly sunny, with a high near 84. Southwest wind 5 to 10 mph.  Chance of precipitation is 20%.

    High: 84 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers before 11pm, then a slight chance of showers and thunderstorms between 11pm and 2am, then showers likely after 2am.  Mostly cloudy, with a low around 63. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: Showers, with thunderstorms also possible after 2pm.  High near 76. Chance of precipitation is 90%.

    High: 76 °F

    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 2am.  Mostly cloudy, with a low around 51. Chance of precipitation is 40%.

    Low: 51 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 87. South wind around 6 mph.
Tonight
Clear, with a low around 56. South wind around 6 mph becoming calm in the evening.
Sunday
Sunny, with a high near 86. Calm wind becoming south 5 to 9 mph in the morning.
Sunday Night
Mostly clear, with a low around 57. South wind 5 to 7 mph.
Monday
A slight chance of showers after 2pm. Mostly sunny, with a high near 84. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.
Monday Night
A slight chance of showers before 11pm, then a slight chance of showers and thunderstorms between 11pm and 2am, then showers likely after 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers, with thunderstorms also possible after 2pm. High near 76. Chance of precipitation is 90%.
Tuesday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 51. Chance of precipitation is 40%.
Wednesday
Mostly sunny, with a high near 68.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
Sunny, with a high near 70.
Thursday Night
Mostly clear, with a low around 47.
Friday
Mostly sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
Union OH
 39.91°N 84.3°W (Elev. 899 ft)
12:01 pm EDT Oct 4, 2025
2pm EDT Oct 4, 2025-6pm EDT Oct 10, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database