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.

A Few Clouds

70°F

21°C

Humidity 76%
Wind Speed SW 10 mph
Barometer 29.97 in (1013.8 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 14 Oct 2:56 am EDT
Extended Forecast for

Union OHSimilar City Names

  • Overnight

    Overnight: Partly cloudy, with a low around 66. Southwest wind around 7 mph.

    Low: 66 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. High near 81. Southwest wind around 7 mph becoming northwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Chance
    Showers then
    Showers

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 4am, then a chance of showers. Mostly cloudy, with a low around 58. Northeast wind around 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 71. East wind 6 to 9 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 57. Southwest wind 9 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Chance
    T-storms then
    Showers

  • Friday

    Friday: Showers, mainly before 2pm. High near 62. Breezy. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 62 °F

    Showers and
    Breezy

  • Friday Night

    Friday Night: A chance of showers before 8pm. Partly cloudy, with a low around 37. Breezy. Chance of precipitation is 30%.

    Low: 37 °F

    Chance
    Showers and
    Breezy then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 34.

    Low: 34 °F

    Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 66. Southwest wind around 7 mph.
Wednesday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. High near 81. Southwest wind around 7 mph becoming northwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms likely before 4am, then a chance of showers. Mostly cloudy, with a low around 58. Northeast wind around 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 71. East wind 6 to 9 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 57. Southwest wind 9 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Showers, mainly before 2pm. High near 62. Breezy. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A chance of showers before 8pm. Partly cloudy, with a low around 37. Breezy. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 56.
Saturday Night
Clear, with a low around 34.
Sunday
Sunny, with a high near 64.
Sunday Night
Mostly clear, with a low around 42.
Monday
Mostly sunny, with a high near 67.
Monday Night
Mostly cloudy, with a low around 45.
Tuesday
Partly sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
Union OHSimilar City Names
 39.91°N 84.3°W (Elev. 899 ft)
Last Update:
2:38 am EDT Oct 14, 2026
Forecast Valid:
3am EDT Oct 14, 2026-6pm EDT Oct 20, 2026
 
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Additional Resources

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