National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Dayton, Cox Dayton International Airport (KDAY)

Lat: 39.91°NLon: 84.22°WElev: 1007ft.

Overcast

69°F

21°C

Humidity 93%
Wind Speed S 9 mph
Barometer 29.92 in (1012.9 mb)
Dewpoint 67°F (19°C)
Visibility 9.00 mi
Last update 15 Oct 8:56 pm EDT
Extended Forecast for

Union OH

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 3am, then showers likely and possibly a thunderstorm after 5am. Steady temperature around 69. South wind 10 to 16 mph becoming southwest after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Showers

  • Friday

    Friday: Showers likely, mainly before noon. Mostly cloudy, with a temperature falling to around 54 by 5pm. Breezy, with a west wind 16 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 62 °F⇓

    Showers
    Likely and
    Breezy then
    Slight Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers between 7pm and midnight. Cloudy, then gradually becoming partly cloudy, with a low around 38. North wind around 17 mph, with gusts as high as 28 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Chance
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 53. North wind 8 to 14 mph.

    High: 53 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Patchy frost after 1am. Otherwise, clear, with a low around 32. Calm wind.

    Low: 32 °F

    Clear then
    Patchy Frost

  • Sunday

    Sunday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 62.

    High: 62 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 37.

    Low: 37 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Tonight
Showers and thunderstorms, mainly before 3am, then showers likely and possibly a thunderstorm after 5am. Steady temperature around 69. South wind 10 to 16 mph becoming southwest after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Showers likely, mainly before noon. Mostly cloudy, with a temperature falling to around 54 by 5pm. Breezy, with a west wind 16 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A chance of showers between 7pm and midnight. Cloudy, then gradually becoming partly cloudy, with a low around 38. North wind around 17 mph, with gusts as high as 28 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 53. North wind 8 to 14 mph.
Saturday Night
Patchy frost after 1am. Otherwise, clear, with a low around 32. Calm wind.
Sunday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 62.
Sunday Night
Clear, with a low around 37.
Monday
Sunny, with a high near 67.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Mostly sunny, with a high near 70.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 70.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Sunny, with a high near 73.
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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 pm EDT Oct 15, 2026
Forecast Valid:
9pm EDT Oct 15, 2026-6pm EDT Oct 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation