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

64°F

18°C

Humidity 73%
Wind Speed SW 15 G 21 mph
Barometer 29.79 in (1008.3 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 5 May 1:56 pm EDT
Extended Forecast for

Union OHSimilar City Names

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms. Cloudy, with a high near 69. Southwest wind around 14 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.

    High: 69 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 4am, then a chance of showers. Low around 45. North wind around 11 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    Low: 45 °F

    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 59. North wind around 10 mph, with gusts as high as 20 mph.

    High: 59 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy during the early evening, then gradual clearing, with a low around 40. North wind 3 to 6 mph.

    Low: 40 °F

    Gradual
    Clearing

  • Thursday

    Thursday: Mostly sunny, with a high near 59. West wind 5 to 10 mph.

    High: 59 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers after 8pm. Mostly cloudy, with a low around 50. Chance of precipitation is 50%.

    Low: 50 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 71.

    High: 71 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms. Cloudy, with a high near 69. Southwest wind around 14 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and possibly a thunderstorm before 4am, then a chance of showers. Low around 45. North wind around 11 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Wednesday
Partly sunny, with a high near 59. North wind around 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly cloudy during the early evening, then gradual clearing, with a low around 40. North wind 3 to 6 mph.
Thursday
Mostly sunny, with a high near 59. West wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 41.
Friday
Mostly sunny, with a high near 67.
Friday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 50. Chance of precipitation is 50%.
Saturday
Partly sunny, with a high near 71.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
Showers likely. Partly sunny, with a high near 73. Chance of precipitation is 60%.
Sunday Night
Showers likely. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.
Monday
A chance of showers. Partly sunny, with a high near 66. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Union OHSimilar City Names
 39.91°N 84.3°W (Elev. 899 ft)
Last Update:
1:17 pm EDT May 5, 2026
Forecast Valid:
2pm EDT May 5, 2026-6pm EDT May 11, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation